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2025_MS4_Annual_Report
Submittal of Annual Reports and Other Compliance Documents for Municipal Separate Storm Sewer System (MS4) Permits NOTE: Missing or incomplete fields are highlighted at the bottom of each page. You may save, close and return to your draft permit as often as necessary to complete your application. After 120 days your draft is deleted. Form 3400-224(R8/2021) Reporting Information : Will you be completing the Annual Report or other submittal type? Annual Report Other Is this submittal also satisfying an Urban Nonpoint Source Grant funded deliverable? Yes No Required Attachments and Supplemental Information Please complete the contents of each tab to submit your MS4 permit compliance document. The information included in this checklist is necessary for a complete submittal. A complete and detailed submittal will help us review about your MS4 permit document. To help us make a decision in the shortest amount of time possible, the following information must be submitted: Review related web site and instructions for Municipal storm water permit eReporting [Exit Form] Complete all required fields on the annual report form and upload required attachments Attach the following other supporting documents as appropriate using the attachments tab above Public Education and Outreach Annual Report Summary Public Involvement and Participation Annual Report Summary Illicit Discharge Detection and Elimination Annual Report Summary Construction Site Pollution Control Annual Report Summary Post-Construction Storm Water Management Annual Report Summary Pollution Prevention Annual Report Summary Leaf and Yard Waste Management Municipal Facility (BMP) Inspection Report Municipal Property SWPPP Municipally Property Inspection Report Winter Road Maintenance Storm Sewer Map Annual Report Attachment Storm Water Quality Management Annual Report Attachment Project Name:2025 Annual Report County:Winnebago Municipality:Oshkosh, City Permit Number:S050075 Facility Number:31078 Reporting Year:2025 Annual Report TMDL Attachment Storm Water Consortium/Group Report Municipal Cooperation Attachment Other Annual Report Attachment Attach the following permit compliance documents as appropriate using the attachments tab above Storm Water Management Program Public Education and Outreach Program Public Involvement and Participation Program Illicit Discharge Detection and Elimination Program Construction Site Pollutant Control Program Post-Construction Storm Water Management Program Pollution Prevention Program Municipal Storm Water Management Facility (BMP) Inventory Municipal Storm Water Management Facility (BMP) Inspection and Maintenance Plan Total Maximum Daily Load documents (*If applicable, see permit for due dates.) TMDL Mapping* TMDL Modeling* TMDL Implementation Plan* Fecal Coliform Screening Parameter * Fecal Coliform Inventory and Map (S050075-03 general permittees Appendix B B.5.2 – document due to the department by March 31, 2022) Fecal Coliform Source Elimination Plan (S050075-03 general permittees Appendix B - document due to the department by October 31,2023) Sign and Submit form Form 3400-224 (R8/2021) Note: Compliance items must be submitted using the Attachments tab. Primary Municipal Contact Person (Authorized Representative for MS4 Permit) The “Authorized Representative” or “Authorized Municipal Contact” includes the municipal official that was charged with compliance and oversight of the permit conditions, and has signature authority for submitting permit documents to the Department (i.e., Mayor, Municipal Administrator, Director of Public Works, City Engineer). Do not close your work until you SAVE. Municipal Contact Information- Complete Notice: Pursuant to s. NR 216.07(8), Wis. Adm. Code, an owner or operator of a Municipal Separate Storm Sewer System (MS4) is required to submit an annual report to the Department of Natural Resources (Department) by March 31 of each year to report on activities for the previous calendar year (“reporting year”). This form is being provided by the Department for the user’s convenience for reporting on activities undertaken in each reporting year of the permit term. Personal information collected will be used for administrative purposes and may be provided to the extent required by Wisconsin’s Open Records Law [ss. 19.31-19.39, Wis. Stats.]. Municipality Information Name of Municipality Oshkosh, City Facility ID # or (FIN):31078 Updated Information:Check to update mailing address information Mailing Address:P O Box 1130 Mailing Address 2: City:Oshkosh, City State:WI Zip Code: xxxxx or xxxxx-xxxx54903-1130 Select to create new primary contact First Name:Rebecca Last Name:Grill Select to update current contact information Title:City Manager Mailing Address:215 Church Avenue Mailing Address 2: City:Oshkosh State:WI Zip Code:xxxxx or xxxxx-xxxx54903-1130 Phone Number:Ext:xxx-xxx-xxxx920-236-5002 Email:rgrill@oshkoshwi.gov Additional Contacts Information (Optional) I&E Program Individual with responsibility for: (Check all that apply) IDDE Program IDDE Response Procedure Manual Municipal-wide Water Quality Plan Ordinances Pollution Prevention Program Post-Construction Program Winter roadway maintenance First Name:James Last Name:Rabe Title:Dir. of Public Works Mailing Address:215 Church Avenue Mailing Address 2:PO Box 1130 City:Oshkosh State:WI Zip Code:xxxxx or xxxxx-xxxx54903-1130 Phone Number:Ext: xxx-xxx-xxxx920-236-5065 Email:jrabe@oshkoshwi.gov Individual with responsibility for: (Check all that apply) I&E Program IDDE Program IDDE Response Procedure Manual Municipal-wide Water Quality Plan Ordinances Pollution Prevention Program Post-Construction Program Winter roadway maintenance First Name:Alyssa Last Name:Deckert Title:Civ. Eng. Supervisor Mailing Address:215 Church Avenue Mailing Address 2:PO Box 1130 City:Oshkosh State:WI Zip Code:xxxxx or xxxxx-xxxx54903-1130 Phone Number:Ext: xxx-xxx-xxxx920-236-5065 Email:adeckert@oshkoshwi.gov I&E Program Municipal Billing Contact Person (Authorized Representative for MS4 Permit) Individual with responsibility for: (Check all that apply) IDDE Program IDDE Response Procedure Manual Municipal-wide Water Quality Plan Ordinances Pollution Prevention Program Post-Construction Program Winter roadway maintenance First Name:Brian Last Name:Wayner Title:Env. Service Leader Mailing Address:One Systems Drive Mailing Address 2: City:Appleton State:WI Zip Code:xxxxx or xxxxx-xxxx54914 Phone Number:Ext: xxx-xxx-xxxx920-830-6141 Email:bwayner@westwoodps.com Individual with responsibility for: (Check all that apply) I&E Program IDDE Program IDDE Response Procedure Manual Municipal-wide Water Quality Plan Ordinances Pollution Prevention Program Post-Construction Program Winter roadway maintenance First Name:Andrew Last Name:Hintz Title:Streets Manager Mailing Address:639 Witzel Avenue Mailing Address 2: City:Oshkosh State:WI Zip Code:xxxxx or xxxxx-xxxx54901 Phone Number:Ext: xxx-xxx-xxxx920-232-5380 Email:ahintz@oshkoshwi.gov 1. Does the municipality rely on another entity to satisfy some of the permit requirements? Yes No 2. Has there been any changes to the municipality’s participation in group efforts towards permit compliances (i.e., the municipality has added or dropped consortium membership)? Yes No Select to create new Billing contact First Name:James Last Name:Rabe Select to update current contact information Title:Director of Public Works Mailing Address:215 Church Ave PO Box 1130 Mailing Address 2: City:Oshkosh State:WI Zip Code:xxxxx or xxxxx-xxxx54903-1130 Phone Number:Ext:xxx-xxx-xxxx920-236-5065 Email:jrabe@oshkoshwi.gov Public Education and Outreach Public Involvement and Participation Illicit Discharge Detection and Elimination Construction Site Pollutant Control Post-Construction Storm Water Management Pollution Prevention NEWSC NEWSC Westwood Missing Information Minimum Control Measures- Section 1 : a.Does MS4 conduct any educational efforts or events independently (not with a group) Yes No b.How many total educational events were held during the reporting year: c.Were any of the public education and outreach delivery mechanisms conducted during the reporting year active or interactive? Yes No d.Please select all storm water topics, target audiences, and delivery mechanisms used in the reporting year e. Will additional information/summary of these education events be attached to the annual report? Yes No If no, please provide additional comment in the brief explanation box below. Limit response to 250 characters and/or attach supplemental information on the attachments page. Note: For the minimum control measures, you must fill out all questions in sections 1 through 7. Do not close your work until you SAVE. Form 3400-224 (R8/2021) Complete 1. Public Education and Outreach 24 Public Education and Outreach Delivery Mechanisms (Active and Passive) Active/Interactive Mechanisms Passive Mechanisms Education activities (school presentations, summer camps) Information booth at event Targeted group training (contractors, consultants, etc.) Government event (public hearing, council meeting) Workshops Tours Other: Passive print media (brochures at front desk, posters, etc.) Distribution of print media (mailings, newsletters, etc.) via mail or email. Media offerings (radio and TV ads, press release, etc.) Social media posts Signage Website Other: Topics Covered Target Audience Illicit discharge detection and elimination Household hazardous waste disposal/pet waste management/vehicle washing Yard waste management/pesticide and fertilizer application Stream and shoreline management Residential infiltration Construction sites and post-construction storm water management Pollution prevention Green infrastructure/low impact development Other: General Public Public Employees Residents Businesses Contractors Developers Industries Public Officials Other: Please see the attached MS4 Annual Reporting Information Spreadsheet and corresponding PDF attachments. Form 3400-224 (R8/2021) Minimum Control Measures - Section 2 : a. Permit Activities. Select all of the following topics the Permittee did to engage public participation and involvement. b. Volunteer Activities. Select all of the following audiences targeted for volunteer involvement and participation related to storm water. c. Brief explanation on Public Involvement and Participation reporting. Limit response to 250 characters and/or attach supplemental information on the attachments page. Missing Information Note: For the minimum control measures, you must fill out all questions in sections 1 through 7 Do not close your work until you SAVE. Complete 2. Public Involvement and Participation Topics Covered Target Audience Estimated People Reached (Optional) Regional Effort (Optional) MS4 Annual Report Storm Water Management Program Storm Water related ordinance Other: General Public Public Employees Residents Businesses Contractors Developers Industries Public Officials Other 101 + Yes No NA (Individual Permittee) Topics Covered Target Audience Estimated People Reached (Optional) Regional Effort (Optional) Volunteer Opportunity General Public Public Employees Residents Businesses Contractors Developers Industries Public Officials Other 101 +Yes No See MS4 Annual Reporting Information Spreadsheet and corresponding PDF attachments. Missing Information Form 3400-224 (R8/2021) Minimum Control Measures - Section 3 : Form 3400-224 (R8/2021) Note: For the minimum control measures, you must fill out all questions in sections 1 through 7 Do not close your work until you SAVE. Complete 3. Illicit Discharge Detection and Elimination a.How many total outfalls does the municipality have?549 b.How many major outfalls does the municipality have?97 c.How many outfalls did the municipality evaluate as part of their routine ongoing field screening program? 93 d.From the municipality's routine screening, how many were confirmed illicit discharges? 0 e.How many illicit discharge complaints did the municipality receive?9 f.From the complaints received, how many were confirmed illicit discharges? 9 g.How many of the identified illicit discharges did the municipality eliminate in the reporting year (from both routine screening and complaints)? (If the sum of 3.c. and 3.e. does not equal 3.f., please explain below.) 9 h.What types of regulatory mechanisms does the municipality have available to compel compliance with this program? Check all that are available and how many times each were used in the reporting year. Verbal Warning1 Written Warning (including email)8 Notice of Violation Civil Penalty/ Citation0 Additional Information: i.Brief explanation on Illicit Discharge Detection and Elimination reporting. If you marked Unsure for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page. 14 outfalls had potential illicit discharges, 0 as confirmed. The City also responds to citizen complaints regarding grass clippings and other pollutants entering the storm sewer. See supplemental information for details. Missing Information Note: For the minimum control measures, you must fill out all questions in sections 1 through 7 Do not close your work until you SAVE. Minimum Control Measures - Section 4 : Form 3400-224 (R8/2021) Minimum Control Measures - Section 5 : Complete 4. Construction Site Pollutant Control a.How many total construction sites with one acre or more of land disturbing construction activity were active at any point in the reporting year? 16 b.How many construction sites with one acre or more of land disturbing construction activity did the municipality issue permits for in the reporting year? 7 c.How many erosion control inspections did the municipality complete in the reporting year (at sites with one acre or more of land disturbing construction activity)? 241 d.What types of regulatory mechanisms does the municipality have available to compel compliance with this program? Check all that are available and how many times each were used in the reporting year. Verbal Warning83 Written Warning (including email)83 Notice of Violation0 Civil Penalty/ Citation0 Stop Work Order Forfeiture of Deposit Other - Describe below e.Brief explanation on Construction Site Pollutant Control reporting . If you marked Unsure for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page. Verbal and written warnings are both given for any violations within the City contacts. See supplemental information for commercial sites and additional details. Missing Information Note: For the minimum control measures, you must fill out all questions in sections 1 through 7 Do not close your work until you SAVE. Complete 5. Post-Construction Storm Water Management a.How many new structural storm water management Best Management Practice (BMP) have received local approval ? *Engineered and constructed systems that are designed to provide storm water quality control such as wet detention ponds, constructed wetlands, infiltration basins, grassed swales, permeable pavement, 10 b.Does the MS4 have procedures for inspecting and maintaining private storm Yes No Form 3400-224 (R8/2021) water facilities? c.If Yes, how many privately owned storm water management facilities were inspected in the reporting year ? Inspections completed by private landowners should be included in the reported number. 23 d.Does the municipality utilize privately owned storm water management BMP in its pollutant reduction analysis? Yes No e.Does MS4 have maintenance authority on these privately owned BMPs? Yes No f.What types of enforcement actions does the municipality have available to compel compliance with the regulatory mechanism? Check all that apply and enter the number of each used in the reporting year. Verbal Warning0 Written Warning (including email)0 Notice of Violation Civil Penalty/ Citation0 Forfeiture of Deposit Complete Maintenance Bill Responsible Party Other - Describe below0 Legal action for not following operations and maintenance agreement. g.Brief explanation on Post-Construction Storm Water Management reporting . If marked 'Unsure' on any questions above, justify your reasoning. Limit your response to 250 characters and/or attach supplemental information on the attachments page. See supplemental information attachment. Missing Information Note: For the minimum control measures, you must fill out all questions in sections 1 through 7 Do not close your work until you SAVE. Minimum Control Measures - Section 6 : Complete 6. Pollution Prevention Storm Water Management Best Management Practice Inspections Not Applicable a.Enter the total number of "municipally owned" (i.e., publicly owned BMPs) or operated (i. e., privately o wned BMPs) structural storm water management best management practices. 31 * Any municipally owned property that has the potential to generate stormwater pollution should have a SWPPP. For example, if a municipal property stores compost piles, material storage, yard wastes, etc., outside and can contaminate stormwater runoff—a SWPPP is required. b.How many new municipally owned storm water management best management practices were installed in the reporting year ? 0 c.How many municipally owned (public) storm water management best management practices were inspected in the reporting year? 31 d.What elements are looked at during inspections (250 character limit)? Erosion, debris build up, woody vegetation, nuisance animals, and accumulation of sediments. e.How many of these facilities required maintenance?31 f.Brief explanation on Storm Water Management Best Management Practice inspection reporting. If you marked Unsure for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page. Staff and hired consultants inspect/maintain SMPs yearly, after rain events, and based on observations. Public Works Yards & Other Municipally Owned Properties that require a stormwater pollution prevention plan (SWPPP)* Not Applicable g.How many municipal properties require a SWPPP? 2 h.How many inspections of municipal properties have been conducted in the reporting year? 2 i.Have amendments to the SWPPPs been made? Yes No j.If yes, describe what changes have been made. Limit response to 250 characters and/or attach supplemental information on the attachment page: k.Brief explanation on Storm Water Pollution Prevention Plan reporting. If you marked Unsure for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page. City staff inspects existing SMPs at least twice a year for any issues and fills out a pre prepared checklist. Collection Services -Street Sweeping Program Not Applicable l.Did the municipality conduct street sweeping during the reporting year? Yes No m.If known, how many tons of material was removed?929 n.Does the municipality have a low hazard exemption for this material? Yes No o.If street sweeping is identified as a storm water best management practice in the pollutant loading analysis, was street cleaning completed at the assumed frequency? Yes - Explain frequency Streets were swept as the 2022 SWQMP recommends No - Explain Not Applicable Collection Services -Catch Basin Sump Cleaning Program Not Applicable p.Did the municipality conduct catch basin sump cleaning during the reporting year? Yes No q.How many catch basin sumps were cleaned in the reporting year?2608 r.If known, how many tons of material was collected?465 s.Does the municipality have a low hazard exemption for this material? Yes No t.If catch basin sump cleaning is identified as a storm water best management practice in the pollutant loading analysis, was cleaning completed at the assumed frequency? Yes- Explain frequency As recommended in the 2022 SWQMP No - Explain Not Applicable Collection Services -Leaf Collection Program Not Applicable u.Does the municipality conduct curbside leaf collection?Yes No v.Does the municipality notify homeowners about pickup?Yes No w.Where are the residents directed to store the leaves for collection? Pile on terrace Pile in street Bags on terrace Other - Describe x.What is the frequency of collection? weekly during October and November y.Is collection followed by street sweeping?Yes No z.Brief explanation on Collection Services reporting. Limit response to 250 characters and/or attach supplemental information on the attachments page *Note: We are requesting information that goes beyond the reporting year, answer the best you can. Winter Road Management Not Applicable aa.How many lane-miles of roadway is the municipality responsible for doing snow and ice control? (One mile of a two-way road equals two lane miles.) 645 ab.Provide amount of de-icing products used by month last winter season? Solids (tons) (ex. sand, or salt-sand) Product Oct Nov Dec Jan Feb Mar Salt 0 126 1445 974 1689 380 Liquids (gallons) (ex. brine) Oct Nov Dec Jan Feb Mar Brine 0 825 17150 11650 5295 1225 ac.Was salt applying machinery calibrated in the reporting year?Yes No ad.Have municipal personnel attended salt reduction strategy training in the reporting year? Yes No Training Date Training Name # Attendance 12/1/2025 Internal Salt Training 14 ae.Brief explanation on Winter Road Management reporting. If you marked Unsure for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page Staff is trained yearly in the use of salt and equipment and when to recognize when it is not functioning properly. Internal (Staff) Education & Communication af.Has the municipality provided an opportunity for internal training or education to staff implementing the municipality's procedures for each of the pollution prevention program element ? Yes No If yes, describe what training was provided (250 character limit): Ground Control meetings are provided annually for City Staff (outside inspectors, engineers, streets supervisors, etc.) ag.Describe how the municipality has kept the following local officials and municipal staff aware of the municipal storm water discharge permit programs, procedures and pollution prevention program requirements. Elected Officials Municipal Officials Appropriate Staff ( such as operators, Department heads, and those that interact with public) Elected officials approve the annual report for the MS4 permit and budget for its implementation on a yearly basis. Various municipal officials keep track of different program requirements and inspect and/or direct the inspection of various SMPs. Plow operators are trained in the use of salt and brine and the effects excessive use can have on the environment. Other staff attend an annual ground control meeting to discuss erosion control. ah.Brief explanation on Internal Education reporting. If you marked Unsure for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page. Missing Information Form 3400-224 (R8/2021) Minimum Control Measures - Section 7 : Note: For the minimum control measures, you must fill out all questions in sections 1 through 7 Do not close your work until you SAVE. Complete 7. Storm Sewer System Map a.Did the municipality update their storm sewer map this year? Yes No If yes, check the areas the map items that got updated or changed: Storm water treatment facilities Storm pipes Vegetated swales Outfalls Other - Describe below b.Brief explanation on Storm Sewer System Map reporting. If you marked Unsure for an question for any questions above, justify the reasoning. Limit response to 250 characters and/or attach supplemental information on the attachments page. See attached map. Form 3400-224 (R8/2021) Final Evaluation - Fiscal Analysis Complete the fiscal analysis table provided below. For municipalities that do not break out funding into permit program elements, please enter the monetary amount to your best estimate of what funding may be going towards these programs. Element: Public Education and Outreach Element: Public Involvement and Participation Element: Illicit Discharge Detection and Elimination Element: Construction Site Pollutant Control Element: Post-Construction Storm Water Management Element: Pollution Prevention Missing Information Do not close your work until you SAVE. Complete Annual Expenditure Reporting Year Budget Reporting Year Budget Upcoming Year Source of Funds 157377 177698 169588 Storm water utility 157377 177698 169588 Storm water utility 609207 664892 658816 Storm water utility 146511 177813 170443 Storm water utility 188614 225968 215838 Storm water utility 2615078 2836535 2841375 Storm water utility Other (describe) Stormwater Quality Management 838901 916090 909026 Storm water utility Other (describe) Storm Sewer System Map 50524 57786 54474 Storm water utility Please provide a justification for a "0" entered in the Fiscal Analysis. Limit response to 250 characters. Water Quality a: Were there any known water quality improvements in the receiving waters to which the municipality’s storm sewer system directly discharges to? Yes No Unsure If Yes, explain below: b :Were there any known water quality degradation in the receiving waters to which the municipality’s storm sewer system directly discharges to? Yes No Unsure If Yes, explain below: c: Have any of the receiving waters that the municipality discharges to been added to the impaired waters list during the reporting year? Yes No Unsure d: Has the municipality evaluated their storm water practices to reduce the pollutants of concern? Yes No Unsure Storm Water Quality Management a. Has the municipality completed or updated modeling in the reporting year (relating to developed urban area performance standards of s. NR 151.13(2)(b)1., Wis. Adm. Code)? Yes No b. If yes, enter percent reduction in the annual average mass discharging from the entire MS4 to surface waters of the state as compared to implementing no storm water management controls: Total suspended solids (TSS) Total phosphorus (TP) Additional Information Based on the municipality’s storm water program evaluation, describe any proposed changes to the municipality’s storm water program. If your response exceeds the 250 character limit, attach supplemental information on the attachments page. Other (describe) Other 1626864 1778420 1744952 Storm water utility The City of Oshkosh installs new street inlets with sumps when new inlets are Illicit discharges that were cleaned up. Form 3400-224 (R8/2021) Requests for Assistance on Understanding Permit Programs Would the municipality like the Department to contact them about providing more information on understanding any of the Municipal Separate Storm Sewer Permit programs? Please select all that apply: Public Education and Outreach Public Involvement and Participation Illicit Discharge Detection and Elimination Construction Site Pollutant Control Post-Construction Storm Water Management Pollution Prevention Storm Water Quality Management Storm Sewer System Map Water Quality Concerns Compliance Schedule Items Due MS4 Program Evaluation Missing Information Do not close your work until you SAVE. Form 3400-224(R8/2021) Required Attachments and Supplemental Information Upload Required Attachments (15 MB per file limit) -Help reduce file size and trouble shoot file uploads *Required Item Note: To replace an existing file, use the 'Click here to attach file ' link or press the to delete an item. Storm Sewer System Map Attach - Other Supporting Documents Do not close your work until you SAVE. Any other MS4 program information for inclusion in the Annual Report may be attached on here. Use the Add Additional Attachments to add multiple documents. File Attachment MS4_Map_2025.pdf AR_SWGroupReport File Attachment NEWSC Annual Report 2025-compressed.pdf AR_CSPC File Attachment Active - Targeted Group Training - City Ground Control EC Meeting.pdf AR_Other File Attachment Passive - Social Media Posts.pdf AR_Other File Attachment Passive - Storm Water Utility Brochure.pdf AR_Other File Attachment Passive - Webpage - Storm Water Utility Credits.pdf AR_LeafYardMgmt File Attachment Passive - Grass Cutting Ad.pdf AR_CSPC File Attachment EC Report 2025.pdf (To remove items, use your cursor to hover over the attachment section. When the drop down arrow appears, select remove item) Attach - Permit Compliance Documents AR_Other File Attachment Evolve Stormwater Reviews - SPR 2025.pdf AR_Other File Attachment 2025 Supplemental Information.pdf AR_IDDE File Attachment IDDE 2025 Part 1.pdf AR_IDDE File Attachment IDDE 2025 Part 2.pdf AR_IDDE File Attachment IDDE 2025 Part 3.pdf AR_IDDE File Attachment IDDE 2025 Part 4.pdf AR_IDDE File Attachment IDDE 2025 Part 5.pdf AR_IDDE File Attachment IDDE 2025 Part 6.pdf IDDE_Program File Attachment City of Oshkosh IDDE Program 2025.pdf PCSSW_Program File Attachment City of Oshkosh Post Construction Storm Water Program 2025.pdf EO_Program File Attachment MS4 Annual Reporting Information Spreadsheet.pdf (To remove items, use your cursor to hover over the attachment section. When the drop down arrow appears, select remove item) Draft and Share PDF Report with the permittee's governing body or delegated representatives. Press the button below to create a PDF. The PDF will be sent to the email address associated with the WAMS ID that is signed in. After the annual report has been reviewed by the governing body or delegated representative, return to the MS4 eReporting System to submit the final report to the DNR. IP_Program File Attachment MS4 Annual Reporting Information Spreadsheet.pdf Missing Information Draft and Share PDF Report Form 3400-224(R8/2021) Steps to Complete the signature process 1.Read and Accept the Terms and Conditions 2.Press the Submit and Send to the DNR button NOTE: For security purposes all email correspondence will be sent to the address you used when registering your WAMS ID. This may be a different email than that provided in the application. For information on your WAMS account click HERE . Terms and Conditions Certification: I hereby certify that I am an authorized representative of the municipality covered under Oshkosh, City MS4 Permit for which this annual report or other compliance document is being submitted, and that the information contained in this submittal and all attachments were gathered and prepared under my direction or supervision. Based on my inquiry of the person or persons under my direction or supervision involved in the preparation of this document, to the best of my knowledge, the information is true, accurate, and complete. I further certify that the municipality’s governing body or delegated representatives have reviewed or been apprised of the contents of this annual report. I understand that Wisconsin law provides severe penalties for submitting false information. Signee (must check current role prior to accepting terms and conditions) Authorized municipal contact using WAMS ID. Delegation of Signature Authority ( Form 3400-220 ) for agent signing on the behalf of the authorized municipal contact. Agent seeking to share this item with authorized municipal contact (authorized municipal contact must get WAMS id and complete signature). After providing the final authorized signature, the system will send an email to the authorized party and any agents. This email will include a copy to the final read only version of this application. Do not close your work until you SAVE. Sign and Submit Your Application Name: Title: Authorized Signature. I accept the above terms and conditions. 2025 annual report Northeast Wisconsin Stormwater Consortium Table of Contents: i INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 NEWSC MEMBERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ANNUAL REPORT PART 2: STORMWATER PROGRAM EVALUATION - MINIMUM CONTROL MEASURES MCM #1 PUBLIC EDUCATION & OUTREACH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #1: Illicit Discharge Detection & Elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NEWSC ACTIVE PRESENTATION DELIERY ON BEHALF OF MEMBERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . Annual Watershed Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025/2026 Chloride Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #2: Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing . . . . . . . . Topic #3: Yard Waste Management/Pesticide and Fertilizer Application . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #4: Stream and Shoreline Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #5: Residential Infiltration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NEWSC ACTIVE PRESENTATION DELIVERY ON BEHALF OF MEMBERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 Winter Sow Volunteers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 Shoreline Restoration Volunteers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #6: Construction Sites/Post Construction Stormwater Management . . . . . . . . . . . . . . . . . . . . . . . . Topic #7: Pollution Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #8: Green Infrastructure/Low Impact Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ACTIVE OUTREACH THAT COVERS MULTIPLE TOPICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 School Presentations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 NEWSC Exhibiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIDEO THAT COVERS MULTIPLE TOPICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elected Official Education Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PASSIVE OUTREACH THAT COVERS MULTIPLE TOPICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #1: Illicit Discharge Detection & Elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #2: Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing . . . . . . . Topic #3: Yard Waste Management/Pesticide and Fertilizer Application . . . . . . . . . . . . . . . . . . . . . . . . Topic #4: Stream and Shoreline Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Topic #5: Residential Infiltration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NEWSC MEDIA/NEWS COVERAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 3 3 5 5 7 8 10 12 12 13 13 14 15 16 18 18 18 20 23 23 24 24 28 29 30 31 32 Table of Contents Continued: ii ANNUAL REPORT PART 2: STORMWATER PROGRAM EVALUATION - MINIMUM CONTROL MEASURES MCM#2 PUBLIC INVOLVEMENT AND PARTICIPATION - VOLUNTEER ACTIVITIES. . . . . . . . . . . . . . . . . . . . . NEWSC ACTIVE DELIVERY ON BEHALF OF MEMBERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Annual Watershed Cleanup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chloride Monitoring: Fall 2025/Winter 2026. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 Winter Sow Volunteers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2025 Shoreline Restoration Volunteers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OTHER NEWSC EFFORTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . WORKSHOPS AND TRAININGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Erosion Control Workshop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Winter Equipment Open House. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ANNUAL REPORT PART 3: STORMWATER PROGRAM EVALUATION - MINIMUM CONTROL MEASURES MCM#4 CONSTRUCTION SITE RUNNOFF CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Construction Site Ordinance & Construction Site Reference Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ANNUAL REPORT PART 4: STORMWATER PORGRAM EVALUTION - MINIMUM CONTROL MEASURES MCM#5 CONSTRUCTION SITE RUNNOFF CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Post-Constrution Ordinance & Post-Construction Reference Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . LEADERSHIP COUNCIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 34 34 36 37 38 39 39 39 40 41 41 41 41 42 2025 annual report NEWSC Mission: To facilitate efficient implementation of stormwater programs locally and regionally that will meet DNR and EPA regulatory requirements and maximize the benefit of stormwater activities to the watershed by: Fostering partnerships Sharing Information Seeking Administrative Efficiency Pooling Financial Resources The Northeast Wisconsin Stormwater Consortium was formed in 2005 as a subsidiary of the Fox-Wolf Watershed Alliance. The consortium is a collaborative of members with leadership elected annually from within its membership. PO Box 1861 Appleton, Wi 54912 NEWSC Coordinator: Alyssa Reinke Email: Alyssa@fwwa.org Phone: (920) 851-4336 Northeast Wisconsin Stormwater Consortium Page 1 Brown County Calumet County Fond du Lac County Outagamie County Winnebago County City of Appleton City of De Pere City of Fond du Lac City of Green Bay City of Kaukauna City of Manitowoc City of Marinette City of Menasha City of Neenah City of Oshkosh City of Two Rivers Town of Algoma Town of Black Wolf Town of Buchanan Town of Clayton Town of Empire Town of Fond du Lac Town of Friendship Town of Grand Chute Town of Lawrence Town of Ledgeview Town of Neenah Town of Scott Town of Taycheedah Town of Vinland Village of Allouez Village of Ashwaubenon Village of Bellevue Village of Combined Locks Village of Eden Village of Fox Crossing Village of Greenville Village of Harrison Village of Hobart Village of Howard Village of Kimberly Village of Little Chute Village of N. Fond du Lac Village of Sherwood Village of Suamico University of WI – Oshkosh AECOM Ayres Associates Brown & Caldwell Cedar Corporation Contech Construction County Materials Davel Engineering GEI Consultants Mach IV Engineering & Surveying Martenson & Eisele McMAHON Group Mead & Hunt MSA Professional Services raSmith Robert E. Lee Associates Ruekert & Mielke Westwood Professional Services 2025 NEWSC Members Page 2 Carpet Cleaning Flyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Professional- Carpet-Cleaning.pdf Carpet Cleaning Website http://www.renewourwaters.org/carpet-cleaning-2/ Carpet Cleaning Website Updated https://fwwa.org/2023/01/18/carpet-cleaning/ Greenhouses, Garden Centers, & Nurseries Fyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Garden- Centers.pdf Professional Power Washing Flyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Power-washing- for-the-professional-washer.pdf Power Washing Website http://www.renewourwaters.org/power-washing/ Concrete Washout Flyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Concrete- Washout.pdf Construction Site Erosion & Sediment Control http://www.renewourwaters.org/wp-content/uploads/2019/07/Construction- BMPs-Erosion-Sediment-Control.pdf Dumpster Management Flyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Dumpster- Management-bilingual-pamphlet.pdf Dumpster Managment Poster https://drive.google.com/file/d/1736Sg155_XWFND0kH4nHq1MQowgiuD8_/view? usp=sharing Parking Lot Maintenance Flyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Parking-Lot- BMP.pdf annual report Part 2: Stormwater Program evaluation - minimum control measures MCM #1 Public Education & Outreach Topic #1: Illicit Discharge Detection & Elimination The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Page 3 Did you have inspectors in your community stop by any businesses this year? Did they do illicit discharge inspections and meet with area businesses about illicit discharge? If so, you can record those interactions as active outreach. Parking Lot Maintenance Flyer http://www.renewourwaters.org/wp-content/uploads/2015/04/Parking-Lot- BMP.pdf Winter Parking Lot Maintenance Flyer http://www.renewourwaters.org/wp-content/uploads/2019/11/Parking-Lot- Maintenance-Winter-BMPs.pdf Fish Don’t Swim in Chlorine Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Pool-Spa- Discharge.pdf Fish Don’t Swim in Chlorine Website http://www.renewourwaters.org/pools-and-spas/ Fish Don’t Swim in Chlorine Website Updated https://fwwa.org/2023/01/18/fish-dont-swim-in-chlorine-2/ MCM #1 Public Education & Outreach Topic #1: Illicit Discharge Detection & Elimination The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Page 4 Does your community require a permit for swimming pools? Did someone provide in person education on maintaining and draining the pool in the permit office? If so, you can record those interactions as active outreach. Page 5 NEWSC Active Presentation Delivery on Behalf of Members: Annual Watershed Cleanup - IDDE Education for Volunteers Fox-Wolf Watershed Alliance hosted Northeast Wisconsin’s largest volunteer trash cleanup May 3rd, 2025. We continue to add sites every year. Over 1,745 volunteers joined us in 2025 to clean up over 75 public sites in our watershed. Volunteers started the morning by meeting at their assigned sites with their site leaders. They learn about trash collection and pollution (illicit discharge) in addition to how to properly retrieve, collect, and dispose of it. After the cleanup, trash weights are totaled and volunteers join us for our annual Cleanup Picnic. Fox-Wolf staff work the event to assist in the fun activities, but also to interact and educate the participants. There are 75+ cleanup sites located along the Fox River, the Wolf River, Lake Butte des Morts, Lake Winnebago, Lake Winneconne, the East River, the bay of Green Bay, and more throughout the Fox-Wolf River Basin. If your community would like a site added for 2026, contact us via email (CleanUp@fwwa.org). Sites should have public access. Communities are asked to provide a site leader for the 1st year. *Additional data and volunteer trash totals can be found under MCM #2 Public Involvement and Participation (Volunteer Activities) Municipality Number of Volunteers Allouez 26 Appleton 247 Brown County 101 Calumet County 22 Combined Locks 35 De Pere 33 Fond du Lac 65 Fox Crossing 18 Grand Chute 9 Green Bay 155 Hortonville 57 Howard 21 Kaukauna 98 Kimberly 64 Ledgeview 40 Little Chute 67 Menasha 82 Neenah 198 New London 14 Oshkosh 186 Sherwood 42 Winnebago County 75 Winneconne 40 Wrightstown 13 Page 6 NEWSC Active Presentation Delivery on Behalf of Members: Annual Watershed Cleanup - IDDE Education for Volunteers Continued Total number of active education participants by community Municipality Number of Active Education Volunteers Brown County 1 Calumet County 2 City of Appleton 8 City of De Pere 3 City of Fond du Lac 2 City of Green Bay 3 City of Neenah 8 City of Menasha 7 City of Oshkosh 3 Outagamie County 1 Municipality Number of Active Education Volunteers Village of Greenville 1 Village of Kimberly 1 Winnebago County 4 NEWSC Active Presentation Delivery on Behalf of Members: 2025/2026 Chloride Monitoring - IDDE Education for Volunteers Chloride volunteers were trained and received active participation education. During trainings, participants learned about chlorides and their impact on our waterways, proper winter salting/maintenance practices, and how to collect and submit chloride data. Documentation numbers are below and detailed data and photos can be found on the Google Map. 2025/2026 Google Maps of Volunteer Monitoring Locations Virtual/Online training recordings: Salt Watch Training: https://drive.google.com/file/d/14CF36B9V9AwARWmhXdDaniQX5uGlndzj/view?usp=sharing How to Submit Data: https://drive.google.com/file/d/1EEGU8TYjXEwN9zVdLmP9T6O-IwcoOEph/view?usp=sharing Total number of active education participants by community Page 7 *Additional data and volunteer totals can be found under MCM #2 Public Involvement and Participation (Volunteer Activities) Household Hazardous Waster Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Household- Hazardous-Waste.pdf Hazardous Waste Website https://www.renewourwaters.org/household-hazardous-waste-3/ Household Hazardous Waste Website Updated https://fwwa.org/2023/01/18/household-hazardous-waste/ Carpet Cleaning Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/carpet- cleaning.pdf Carpet Cleaning Website http://www.renewourwaters.org/carpet-cleaning-2/ Carpet Cleaning Website Updated https://fwwa.org/2023/01/18/carpet-cleaning/ Kids Can Help Too Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Kids-can-help- too.pdf Kids Can Help Too Website http://www.renewourwaters.org/kids-can-help-too-3/ Kids Can Help Too Website Updated https://fwwa.org/2023/01/18/kids-can-help-too/ Good Dog, Good Owner Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Good-Dog-Good- Owner.pdf Good Dog, Good Owner Website http://www.renewourwaters.com/our-pets-our-waters/ Good Dog, Good Owner Website Update https://fwwa.org/2023/01/18/good-dog-good-owner/ Good Dog, Good Owner Infographic http://www.renewourwaters.org/wp-content/uploads/2019/07/Good-Dog-Good- Owner-Web-Ready.png Topic #2: Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Page 8 *Did you exhibit or do any community presentations that hit on these topics? If so, you can record those interactions as active outreach. Did you issue dog licenses? If you did, and you talked with residents about proper pet waste management, you can claim that interaction as active education. Did you host a household hazardous waste collection day? If you did, and you talked with residents about impacts of improper disposal, count this as active outreach. Power Washing Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Power-Washing- Home.pdf Power Washing Website http://www.renewourwaters.org/power-washing/ Fish Don’t Swim in Chlorine Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Pool-Spa- Discharge.pdf Fish Don’t Swim in Chlorine Website http://www.renewourwaters.org/pools-and-spas/ Fish Don’t Swim in Chlorine Website Updated https://fwwa.org/2023/01/18/fish-dont-swim-in-chlorine-2/ Vehicle Maintenance Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Vehicle- Maintenance.pdf Vehicle Maintenance Website http://www.renewourwaters.org/vehicle-maintenance-2/ Vehicle Maintenance Website Updated https://fwwa.org/2023/01/18/vehicle-maintenance/ Car Washing Infographic http://www.renewourwaters.org/wp-content/uploads/2019/07/Car-on- GrassSM.jpg Topic #2: Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing Continued Page 9 *Did you exhibit or do any community presentations that hit on these topics? If so, you can record those interactions as active outreach. Do you issue permits for pools? If you do, and you talked with residents about pool or spa discharge, you can claim that interaction as active education. In 2023, we started to update and reformat content. If you did not see our new website for Renew Our Waters, please check it out. There is still content being added in 2026. https://fwwa.org/what-we-do/renew-our-waters/ Additionally, NEWSC educational flyers can be found through the member portal. https://fwwa.org/what-we-do/newsc/newsc-member-resources/ Leave Your Leaves on Land Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Leave-Your- Leaves-on-Land.pdf Leave Your Leaves on Land Website http://www.renewourwaters.org/leave-your-leaves-on-land/ Leave Your Leaves on Land Website Updated https://fwwa.org/2023/09/26/leaveyourleavesonland/ The Perfect Lawn Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/The-Perfect- Lawn.pdf The Perfect Lawn Website https://www.renewourwaters.org/the-perfect-lawn-3/ Perfect Landscapes Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/The-Pefect- Landscape-7.9.19.pdf Perfect Landscapes Website http://www.renewourwaters.org/the-perfect-landscape/ Perfect Landscapes Website Updated https://fwwa.org/2023/01/18/the-perfect-landscape/ Kids Can Help Too Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/Kids-can-help- too.pdf Kids Can Help Too Website http://www.renewourwaters.org/kids-can-help-too-3/ Kids Can Help Too Website Updated https://fwwa.org/2023/01/18/kids-can-help-too/ Topic #3: Yard Waste Management/Pesticide and Fertilizer Application The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Page 10 *Did you exhibit or do any community presentations that hit on these topics? If so, you can record those interactions as active outreach. Do you have a yard waste disposal site or require a permit/pass? If you do, and you talked with residents about yard waste management, you can claim that interaction as active education. Ice & Snow Control Flyer https://drive.google.com/drive/search?q=ice%20and%20snow%20control Ice & Snow Control Website http://www.renewourwaters.org/ice-and-snow-control-3/ Ice & Snow Control Infographic https://drive.google.com/file/d/1kNnGHQSAclZm139ArXbdtKbxfz-YPPRa/view Sweep Grass Clippings Infographic https://drive.google.com/drive/folders/1ImwXMbKYIyjRdziIuL18nMOfS6EhJiSv Page 11 *Did you exhibit or do any community presentations that hit on these topics? If so, you can record those interactions as active outreach. In 2023, we started to update and reformat our content. If you did not see our new website for Renew Our Waters, please check it out. There is still content being added in 2026. Please note, the links to the previous Renew Our Waters website will become inactive in the future. https://fwwa.org/what-we-do/renew-our-waters/ Additionally, NEWSC educational flyers can be found through the NEWSC member portal. https://fwwa.org/what-we-do/newsc/newsc-member-resources/ Topic #3: Yard Waste Management/Pesticide and Fertilizer Application Continued The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Restore Your Shore Flyer https://drive.google.com/file/d/1Qcel0qumtuyfu204Qg9kMFa1BSZjb4DA/view? usp=sharing Topic #4: Stream and Shoreline Management The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Page 12 *Did you host a rain barrel workshop? If so, claim active outreach for this topic. *Did you meet with homeowners to educate them on streambank erosion and BMPs to reduce erosion? You can record these discussions as active outreach. Rain Barrel Flyer http://www.renewourwaters.org/wp-content/uploads/2019/04/Rain-Barrels- Handout.pdf Rain Barrel Website http://www.renewourwaters.org/rain-barrels/ Rain Barrel Website Updated https://fwwa.org/2023/01/18/rain-barrels-2/ The Perfect Lawn Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/The-Perfect- Lawn.pdf The Perfect Lawn Website https://www.renewourwaters.org/the-perfect-lawn-3/ Perfect Landscape Flyer http://www.renewourwaters.org/wp-content/uploads/2019/07/The-Pefect- Landscape-7.9.19.pdf Perfect Landscape Website http://www.renewourwaters.org/the-perfect-landscape/ Perfect Landscape Website Updated https://fwwa.org/2023/01/18/the-perfect-landscape/ Grass Clippings Infographic http://www.renewourwaters.org/wp- content/uploads/2019/07/grassclippingsROW.jpg Topic #5: Residential Infiltration The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Municipality Number of Volunteers City of Appleton 6 City of Green Bay 2 Village of Greenville 3 City of Kaukauna 3 City of Menasha 2 City of Neenah 14 Village of Shawano 2 NEWSC Active Presentation Delivery on Behalf of Members: 2025 Winter SOw Volunteers - Stream & Shoreline Management & Residential Infiltration Volunteers joined Fox-Wolf staff building mini greenhouses, utilizing milk jugs to grow native plants. Participants were able to keep what they want from the plants they grew and any extra plants were or will be used in restoration projects for the Winnebago Waterways Program at Fox-Wolf Watershed Alliance. During the event, volunteers were also educated on the benefits of native plants on shorelines, streams, and infiltration on our landscapes. Winter Sowing Hack: Grow Native Plants and Protect Water Quality Video: https://www.youtube.com/watch?v=1t-PzjC9mL4 Total number of active education participants by community Page 13 *Additional data and volunteer totals can be found under MCM #2 Public Involvement and Participation (Volunteer Activities) 2025 Winter Sow Workshop: Jan 25 , 2025 th Neenah Public Library 240 E Wisconsin Ave, Neenah, Wi 54956 Municipality Hours of Volunteering City of Appleton 6 City of Fond du Lac 9 City of Fond du Lac 6 City of Oshkosh 18 City of Oshkosh 18 City of Oshkosh 18 City of Oshkosh 6 City of Oshkosh 3 City of Oshkosh 3 Town of Omro 3 Winnebago County 3 NEWSC Active Presentation Delivery on Behalf of Members: 2025 Shoreline Restoration Volunteers- Stream & Shoreline Management & Residential Infiltration Volunteers joined Fox-Wolf staff at shoreline planting sites. They learned about the native plants utilized, why they are important, and the benefits they provide. A highlight of this volunteer opportunity was discussing how shoreline plantings and management reduce erosion, stormwater runoff, increase infiltration rates, and more. Shoreline Management & Restoration Page: https://fwwa.org/where-we-work/winnebago-waterways-2/shoreline-restoration-program/ Total number of active education participants by community Each row is one volunteer with their number of volunteers hours in the second column. Page 14 *Additional data and volunteer totals can be found under MCM #2 Public Involvement and Participation (Volunteer Activities) Stormwater & the Construction Industry Poster http://www.renewourwaters.org/wp-content/uploads/2019/07/Construction- BMPs-Erosion-Sediment-Control.pdf Erosion & Sediment Control Pocket Field Guide https://drive.google.com/file/d/1TBtgl61znizXDZyLoDRVRVNhxThD40kH/view? usp=sharing Topic #6: Construction Sites/Post Construction Stormwater Management The resources below were created by NEWSC and are available for NEWSC members to print and mail out to local businesses, share on social media, or make available to residents by printing and displaying them at the office or another public venue. If used in the in the manner above: Delivery Mechanism would be passive. Page 15 *Did you have active discussions regarding construction site erosion control? If you used these materials or other educational materials and had meetings/trainings (even 1 on 1 meetings with builders/contractors/inspectors), then you can record that interaction as active outreach. This training may have included the NEWSC Excal Video below. Excal Visual Videos on Erosion Control available for member checkout in 2026. “Ground Control” – Stormwater for Construction BMPs This employee training kit is designed to show employees how erosion, sediments and other potential surface water pollutants are controlled at construction sites. The program focuses on Best Management Practices (BMPs) that are widely used at most construction sites including: silt fence, stabilized entrances/exits, drop inlet protectors and others. The program illustrates how these BMPs work and how they can fail. (14 minutes) Click here to preview from Excal Visual’s site: https://www.excalvisual.com/ground-control-extended-preview BMP Master List The purpose of the Stormwater Quality Management BMP master list is to allow MS4 and Public Works managers to easily search available stormwater and erosion control BMPs based on target pollutants, WDNR Technical Standards, and keywords. The master list provides insight into the benefits and limitations of each BMP, allowing the user to have a brief understanding of each device to help guide decision making when implementing or reviewing projects. The spreadsheet can be found on the NEWSC member resources page on newsc.org and HERE. Model Ordinance Reference Guides NEWSC’s Construction Site Erosion Control Reference Guide and Post-Construction Pollution Control Reference Guide – the companion documents to NEWSC’s model ordinances – are being updated. With the permit delay since 2024, these will be updated when the new permit is released by WDNR and will be available for use. Members should utilize the current versions of the documents until the new permit is enacted. The documents can be found on the NEWSC member resources page on newsc.org. Fleet Maintenance https://drive.google.com/file/d/1fIRY40S5nhHZU_7cIwGTHtDfwgLt7wbu/view? usp=sharing Land Disturbances https://drive.google.com/file/d/1VujZccTojAWZhjVcp4e6A9HytWjVAkGu/view? usp=sharing Materials Storage and Spill Cleanup https://drive.google.com/file/d/1J_2_SuMYXwmOsqdpsdIlNR_0klJ3qKMu/view? usp=sharing Parks and Ground Maintenance https://drive.google.com/file/d/14r436EKrJM44x_iPgioWXFrspmqbTVAq/view? usp=sharing Solid Waste Operations https://drive.google.com/file/d/1r2gimtAsRanIpxSCevFntWMJwI5Z5tMS/view? usp=sharing Street and Drainage Maintenance https://drive.google.com/file/d/1KtikoiyMCIPVBhv5VOhYERUlrH52NFXo/view? usp=sharing Mowing https://drive.google.com/file/d/1h-tz-pzbTow-xMelISeG30YkN_L-uERr/view? usp=drive_link Leaf Collection https://drive.google.com/file/d/1ZSndB33w39XudANHWeTFRcaRjqaP144C/view? usp=sharing Salt, Brine, & Sand https://drive.google.com/file/d/1W8GWi9CTSsTd1NbzfS2UQp5rxSXYea_P/view? usp=sharing Topic #7: Pollution Prevention The resources below were created by NEWSC and are available for NEWSC members to print and post by time clocks for training municipal staff. If used in the manner above: Delivery Mechanism would be passive. Page 16 *Did you have active pollution prevention trainings? If you used these materials or other educational materials and had meetings/trainings, then you can record that interaction as an active outreach. These trainings may have included the NEWSC Excal Videos. Municipal Staff PSAs Did you talk about any of the Municipal Staff PSAs with employees, at a team meeting, or during a “tool box talk”? Did you have staff watch any of the NEWSC recorded trainings that are linked on the NEWSC Member Resources Page under the Miscellaneous Presentations and Workshops section? This can be counted toward staff training as well. "Rain Check" - Stormwater Pollution Prevention for MS4s Regulated municipalities and other municipal separate storm sewer system (MS4) operators must prevent pollutants from entering their storm drainage systems. One element of this requirement is preventing stormwater pollution by municipal facilities such as fleet maintenance shops, bus barns, sanitation facilities, parks and street sweeping operations. This program shows employees how to practice good housekeeping, spill response, materials management, vehicle fueling and washing and the other BMPs profiled in the “National Menu". {Program versions run between: 19 -and up to- 31 minutes)” Click here to preview from Excal Visual’s site: https://www.excalvisual.com/swrc-extended- preview "Storm Warnings" - Stormwater Pollution Prevention This training kit is designed to provide general awareness training to employees and contractors about stormwater pollution prevention. It describes Best Management Practices (BMPs) that are useful and important at a wide range of regulated facilities. It covers good housekeeping and other BMPs that help protect stormwater run-off. The kit includes a template to guide the trainer through creating site specific training to use in addition to the general training in the video. (18 minutes) Click here to preview from Excal Visual’s site: https://www.excalvisual.com/storm-warning-extended- preview Topic #7: Pollution Prevention Continued Page 17 Excal Visual Videos on Pollution Prevention available for member checkout. Did you do any other Pollution Prevention trainings with staff in 2025? Staff and Public Training Materials Check Out Form Check Out/Borrow: EnviroScape Model Floodplain Model Stormwater Plinko Game Stormwater Pollutants “Find it Jars” Wheel of Pollution Cleanup Trash Grabbers Stormwater BMP Outdoor “Raindrop Banner” “Rain Check” - Stormwater Pollution Prevention for MS4s Video “Ground Control” - Stormwater for Construction BMPs Video “Storm Warnings” - General Stormwater Pollution Prevention Videos Stormwater Topic: Discussed?Stormwater Topic: Discussed? Illicit Discharge Detection & Elimination YES Residential Infiltration YES Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing YES Construction Sites and Post Construction Stormwater Management YES Yard Waste Management/Pesticide and Fertilizer Application YES Pollution Prevention YES Stream and Shoreline Management YES Green Infrastructure/Low Impact Development NO 2025 School Presentations Page 18 Active outreach that covers multiple topics The presentations and exhibiting events on the pages that follow can count towards active delivery of any of the topics identified in the table associated with the presentation. Topic #8: Green Infrastructure/Low Impact Development NEWSC will be gathering resources for members to use going forward in 2026. *Did you have active discussions with elected officials or developers about low-impact residential design? If you held meetings/trainings, or provided presentations on the topic, then you can record that interaction as an active outreach. Name of School/School Event Address Date of Presentation Number of Approximate Reach Freedom N4021 Cty Rd E, Freedom, WI 54130 9/24/2025 111 Xavier Middle School 2626 N Oneida St, Appleton, WI 54911 9/24/2025 97 Hortonville Middle School 220 Warner St, Hortonville, WI 54944 9/23/2025 100 Mount Olive Lutheran 930 E Florida Ave, Appleton, WI 54911 9/23/2025 29 St Paul Lutheran Elementary School 225 E Harris St, Appleton, WI 54911 9/23/2025 28 2025 School Presentations Continued The following presentations were provided in classrooms or virtually in NEWSC communities throughout the Fox- Wolf River Basin in 2025. These lessons covered watershed basics, how we use water, water quality, stormwater runoff pollution, floodplains, water quantity issues, green infrastructure, and tips for students and parents for reducing and preventing polluted stormwater runoff. Tools used for providing this education include: EnviroScape model, Ward’s Floodplain model, stormwater find-it jars, stormwater runoff plinko, and templates for designing storm drain murals. Page 19 Outagamie County Conservation Field Days 9/23/2025; approximate reach 157 9/24/2025; approximate reach 208 NEWSC sent out a large school mailing to schools in NEWSC member communities at the end of 2025. More school presentations will be scheduled and held in 2026. Stormwater Topic: Discussed?Stormwater Topic: Discussed? Illicit Discharge Detection & Elimination YES Residential Infiltration YES Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing YES Construction Sites and Post Construction Stormwater Management NO Yard Waste Management/Pesticide and Fertilizer Application YES Pollution Prevention YES Stream and Shoreline Management YES Green Infrastructure/Low Impact Development NO 2025 NEWSC Exhibiting The presentations and exhibiting events on the pages that follow can count towards active delivery of any of the topics identified in the table associated with the presentation. Page 20 Did your community table at any local events and educate the public? Do you have a sustainability board who exhibiting locally and covered stormwater topics? Municipality Date Number of Contacts City of Appleton 1/23/2025 20 City of Oshkosh 1/25/2025 60 Village of Ashwaubenon 2/19/2025 59 Town of Grand Chute 4/22/2025 30 Town of Neenah 4/22/2025 5 Village of Fox Crossing 4/22/2025 10 City of Appleton 4/22/2025 55 Town of Fond du Lac 4/26/2025 30 Town of Empire 4/26/2025 30 City of Fond du lac 4/26/2025 60 City of Appleton 6/20/2025 65 City of Appleton 6/21/2025 71 City of Green Bay 7/9/2025 151 City of Oshkosh 8/9/2025 120 University of Wisconsin Oshkosh 8/9/2025 20 Town of Grand Chute 9/6/2025 800 City of Oshkosh 10/11/2025 125 City of Green Bay 11/11/2025 14 City of De Pere 11/11/2025 14 City of Menasha 11/13/2025 100 2025 Exhibiting Page 21 2026 2027 Calumet County Fond du Lac County City of De Pere City of Green Bay City of Marinette City of Menasha Town of Algoma Town of Black Wolf Town of Friendship Town of Grand Chute Town of Scott Town of Taycheedah Village of Ashwaubenon Village of Bellevue Village of Greenville Village of Harrison Village of Little Chute Village of North Fond du Lac Township of Empire NEWSC 2026-2027 Exhibiting List NEWSC member communities are included in an annual exhibiting plan once during the 5 year permit cycle. Communities planned for 2026 and 2027 are listed below: Page 22 To ensure your space is reserved NEWSC members must: 1.Contact the Outreach Coordinator by March 30 of the year you are scheduled with the name of the event, date of the event, and the contact information for the event organizer that you would like the Outreach Coordinator to be a part of. 2.Work with the Outreach Coordinator and the event organizer to ensure acceptance of NEWSC participation at the event. The NEWSC member must pay any exhibiting fees (if applicable) for the event. For most community events, NEWSC members are able to coordinate with the event host for a free exhibiting space, if the event chosen does not waive exhibiting fees for the community, those fees are the responsibly of the NEWSC member. If communities do not schedule the Outreach Coordinator to participate by March 30, invitations to the Outreach Coordinator from other communities for events will be entertained and all will be accepted as time is available on a first come first serve basis. If the Outreach Coordinator is unable to exhibit in your community due to workload or date of event, NEWSC members may check out exhibiting materials from NEWSC. Promotional materials will be provided as part of the exhibiting display if NEWSC has promotional items to hand out. Stormwater Topic: Discussed?Stormwater Topic: Discussed? Illicit Discharge Detection & Elimination YES Residential Infiltration YES Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Washing YES Construction Sites and Post Construction Stormwater Management YES Yard Waste Management/Pesticide and Fertilizer Application YES Pollution Prevention YES Stream and Shoreline Management YES Green Infrastructure/Low Impact Development NO 2025 Video Education Page 23 Video covers multiple topics The presentations and exhibiting events on the pages that follow can count towards active delivery of any of the topics identified in the table associated with the presentation. elected Official Education Video NEWSC created an elected official education video. Depending on how your community utilized this resource, you could mark it as passive or active education. https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s *Did you have active discussion with elected officials or developers about low impact residential design? If you had meetings/trainings or provided presentations on the topic, then you can record that interaction as an active outreach. Passive outreach that covers multiple topics NEWSC Media Continued by Topic Topic #1: Illicit Discharge Detection & Elimination Page 24 Topic #1 Total Facebook: Likes: 1,281 Shares: 336 Views: 15,000+ *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. Facebook: Likes: 1656 Shares: 416 Views: 35,000+ Followers: 3,422 2025 Totals Date Topic Likes Shares Link 1/6/2025 Salt Week 34 56 https://www.facebook.com/WISaltWise/post 1/8/2025 Watershed Moments 7 1 https://www.facebook.com/share/p/1BxL6kjAib/ 1/18/2025 Salt Blog 6 1 https://www.facebook.com/share/p/1BxoCXCG6H/ 1/21/2025 Watershed Moments 5 1 https://www.facebook.com/share/p/1DjH4XRuKi/ 1/23/2025 Trash 11 3 https://www.facebook.com/share/p/1AqFf91NVN/ 1/27/2025 Salt Week 5 6 https://www.facebook.com/share/p/1AbEkyBSGV/ 1/28/2025 Salt Week 4 3 https://www.facebook.com/share/p/1CBDah6G6d/ 1/29/2025 Salt Week 5 1 https://www.facebook.com/share/p/14YmF8SsaKG/ 1/30/2025 Salt Week 1 0 https://www.facebook.com/share/p/1C37icMmAb/ 1/31/2025 Chloride Monitoring 2 1 https://www.facebook.com/share/p/1WB6ZmKD2f/ 2/4/2025 Municipal Salt 4 2 https://www.facebook.com/share/p/1AG7EN12hV/ 2/24/2025 Cleanup Promo 205 49 https://www.facebook.com/share/p/1AdbjBNAp3/ 2/27/2025 Cleanup Promo 3 3 https://www.facebook.com/share/p/16arSk3j9U/ 3/1/2025 Cleanup 11 5 https://www.facebook.com/share/p/19frWeJ2hC/ 3/5/2025 Cleanup Success 9 11 https://www.facebook.com/share/p/1C9F1tyhj3/ Date Topic Likes Shares Link 3/15/2025 Cleanup 25 5 https://www.facebook.com/share/p/1AKCmk3E1Z/ 4/1/2025 Preseason Pick-Up 32 8 https://www.facebook.com/share/v/1C9Dg3mhEn/ 4/2/2025 Preseason Pick-Up 8 1 https://www.facebook.com/share/r/1QPcW65v1F/ 4/10/2025 Cleanup Promo 11 5 https://www.facebook.com/share/p/17vkKJVQET/ 4/22/2025 Earth Day & Cleanup 37 3 https://www.facebook.com/share/p/1AS38QYeGY/ 4/30/2025 Erosion Control 15 0 https://www.facebook.com/share/p/14TU29D5xyd/ 5/2/2025 Cleanup Count Down 24 6 https://www.facebook.com/share/p/14ZrC9P35DS/ 5/3/2025 Trash Totals 49 0 https://www.facebook.com/share/p/16tvK5qVfT/ 5/4/2025 Cleanup Success 69 8 https://www.facebook.com/share/p/1CxbMwEo7J/ 5/5/2025 Cleanup Success 48 2 https://www.facebook.com/share/p/1BbZhmKV6U/ 5/12/2025 Cleanup Totals 32 5 https://www.facebook.com/share/p/1BtvUZ8763/ NEWSC Media by Topic Topic #1: Illicit Discharge Detection & Elimination Continued Page 25 *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. Facebook: Likes: 1,281 Shares: 336 Views: 15,000+ Highlighted Post - Preseason Pick-Up. Over 6,500 views on this post! Date Topic Likes Shares Link 6/2/2025 Storm Drains 11 9 https://www.facebook.com/share/p/17zHbB1rT5/ 6/10/2025 Firework Disposal 65 34 https://www.facebook.com/share/p/182No8CaHK/ 6/26/2025 Firework Disposal 5 5 https://www.facebook.com/share/r/1Cv6kucfwY/ 7/4/2025 Firework Disposal 6 1 https://www.facebook.com/share/r/1GHjEGj4Yh/ 7/18/2025 Happiest Hour 95 11 https://www.facebook.com/share/p/1D95UUsbg8/ 9/8/2025 Stormwater Week 8 5 https://www.facebook.com/share/p/1D7PYryYj4/ 9/15/2025 Stormwater Week 11 7 https://www.facebook.com/share/p/1BnrGUTijt/ 9/19/2025 Stormwater Week 3 1 https://www.facebook.com/share/p/1CCnP7yZGW/ 9/22/2025 Stormwater Week 4 3 https://www.facebook.com/share/p/1AJn9BjJCC/ 9/24/2025 IDDE 3 1 https://www.facebook.com/share/p/1DNGYmEZR8/ 9/29/2025 Chlorine 3 1 https://www.facebook.com/share/p/1H96ffS4Jn/ 9/30/2025 Stormwater Ponds 25 2 https://www.facebook.com/share/p/17sgNAj9ra/ NEWSC Media by Topic Topic #1: Illicit Discharge Detection & Elimination Continued Page 26 *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. Facebook: Likes: 1,281 Shares: 336 Views: 15,000+ More than 2,500 Views on 4 of July firework posts!th NEWSC Media by TopicTopic #1: Illicit Discharge Detection & Elimination Continued Page 27 *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. Facebook: Likes: 1,281 Shares: 336 Views: 15,000+ Date Topic Likes Shares Link 10/18/2020 General Water Quality 46 3 https://www.facebook.com/share/r/1DWUMAXpPc/ 10/22/2025 Chloride Monitoring 28 6 https://www.facebook.com/share/p/1737D95i2x/ 10/28/2025 Chloride Monitoring 5 2 https://www.facebook.com/share/p/1F16bG7pPy/ 11/3/2025 Snow & Salt 2 2 https://www.facebook.com/share/p/16skitCCTY/ 11/10/2025 Salt Webinar 6 0 https://www.facebook.com/share/p/17sGRRQUkh/ 11/11/2025 Street Sweeping 4 0 https://www.facebook.com/share/v/1HZpN2gzg7/ 11/19/2025 Bioswales 7 0 https://www.facebook.com/share/p/1ABNFctDuz/ 11/24/2025 Salt 56 23 https://www.facebook.com/share/p/17vpxEygGM/ 11/25/2025 Chloride Volunters 1 0 https://www.facebook.com/share/p/1D372Rig3n/ 11/28/2025 Chloride Volunters 167 19 https://www.facebook.com/share/p/14P7ge6VzDk/ 12/11/2025 What is a Watersehd 11 7 https://www.facebook.com/share/p/1FzkTfj8ER/ 12/18/2025 What is a Watersehd 12 0 https://www.facebook.com/share/p/1HLZEE2he7/ 12/22/2025 Salt Quiz 20 4 https://www.facebook.com/share/p/1FfzqTV1ge/ 12/23/2025 What is a Watersehd 5 0 https://www.facebook.com/share/p/1CGZxYwexh/ 12/28/2025 Winter Watershed Wins 10 4 https://www.facebook.com/share/p/14XZE7qkYp5/ Date Topic Likes Shares Link 5/24/2025 Foamy Water - Soaps 8 1 https://www.facebook.com/share/p/1DHzp47sTf/ 7/30/2025 Foamy Water - Soaps 6 1 https://www.facebook.com/share/p/1AaUd1qygY/ 8/8/2025 Vehicle Washing 5 3 https://www.facebook.com/share/p/1D2KyziuAF/ 8/21/2025 Vehicle Maintenance 3 2 https://www.facebook.com/share/p/1CLj5VfZuJ/ 8/30/2025 Vehicle Maintenance 3 2 https://www.facebook.com/share/p/1DBD4nKwas/ 9/30/2025 Household Hazardous Waste 1 0 https://www.facebook.com/share/p/1GErGhitVY/ 10/24/2025 Household Hazardous Waste 4 1 https://www.facebook.com/share/p/1AQ18XEoYw/ NEWSC Media by TopicTopic #2:Household Hazardous Waste Disposal/Pet WasteManagement/Vehicle Washing Page 28 Topic #2 Total Facebook: Likes: 30 Shares: 10 Did you create any posts about these topics and share on your community page? If so, you can record those as passive outreach. Date Topic Likes Shares Link 4/9/2025 Pesticides & Fertilizer Application 2 0 https://www.facebook.com/share/p/1Muzg7bzEk/ 4/15/2025 Pesticides & Fertilizer Application 13 0 https://www.facebook.com/share/p/1GbySpoPGk/ 4/16/2025 Grass, Pesticides, etc 5 0 https://www.facebook.com/share/p/1DQZLFAJhY/ 4/27/2025 No Mow May 58 14 https://www.facebook.com/share/p/1AMf442bhx/ 6/18/2025 HABs 4 3 https://www.facebook.com/share/p/17dCnQnWC2/ 8/7/2025 HABs & Dogs 2 3 https://www.facebook.com/share/r/1GvQXsvvyV/ 8/8/2025 HABs & Beach Closures 4 3 https://www.facebook.com/share/p/17icaW2VbN/ 10/7/2025 Leaf Management 4 3 https://www.facebook.com/share/v/17haCMJRSw/ 11/5/2025 Leaf Management 36 8 https://www.facebook.com/share/p/1C4WE37Vw8/ NEWSC Media by Topic NEWSC Media by TopicTopic #3: Yard Waste Management/Pesticide and Fertilizer Application Page 29 Topic #3 Total Facebook: Likes: 128 Shares: 34 Views: 1,750+ *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. Date Topic Likes Shares Link 2/7/2025 Little Lake Butte Des Morts 9 2 https://www.facebook.com/share/p/1BSJz85ZE4/ 3/22/2025 Shoreline Restoration 11 2 https://www.facebook.com/share/p/1DeGPjBdgb/ 3/25/2025 Shoreline Restoration 5 0 https://www.facebook.com/share/p/1BBXNLumjZ/ 3/26/2025 Water Levels 7 3 https://www.facebook.com/share/p/16ysV3BDtn/ 3/28/2025 Water Levels 7 2 https://www.facebook.com/share/p/1BjqfYkeAe/ 6/25/2025 Streambank Erosion 9 0 https://www.facebook.com/share/p/183CrDWmsT/ 9/2/2025 Shoreline Restoration 7 2 https://www.facebook.com/share/v/1JLrfWxzLA/ 9/23/2025 Shoreline Restoration 6 1 https://www.facebook.com/share/p/1Bx2u8aLRU/ 12/9/2025 Streambank Restoration 102 15 https://www.facebook.com/share/r/14Y82hHerVb/ 12/19/2025 Streambank Restoration 9 1 https://www.facebook.com/share/p/17hKp7v8Sz/ Over 18,000 Views! The work will restore more than one-third of a mile of unstable bank, improving habitat for fish and aquatic life, reducing sediment and nutrient runoff, and helping the creek withstand heavy rains and flooding. Conservation practices like root wads, regraded slopes, and newly planted native vegetation will all play a role in stabilizing the site and supporting long-term health. https://fwwa.org/2025/12/09/were-breaking-ground-in-brothertown- brothertown-creek-streambank-restoration-begins/ *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. NEWSC Media by Topic Topic #4: Stream and Shoreline Management Topic #4 Total Facebook: Likes: 172 Shares: 28 Views: 18,350+ Page 30 Date Topic Likes Shares Link 1/11/2025 Winter Sow 2 1 https://www.facebook.com/share/p/1HLXw5VU4G/ 1/18/2025 Winter Sow Blog 6 1 https://www.facebook.com/share/p/1BxoCXCG6H/ 2/21/2025 Native Plantings 5 0 https://www.facebook.com/share/p/1APvem3C95/ 3/10/2025 Winter Sow Reel 3 0 https://www.facebook.com/share/r/1D119kqjyq/ 3/12/2025 Winter Sow 5 1 https://www.facebook.com/share/p/1BeHhf2Lpx/ 3/23/2025 Rain Barrels 11 3 https://www.facebook.com/share/p/1B3AHKxw5v/ 4/21/2025 Earth Day Rain Barrels 9 1 https://www.facebook.com/share/p/1DJ9LKiQ3U/ 11/30/2025 Winter Sow 1 1 https://www.facebook.com/share/p/1DcD6JSr7G/ 12/24/2025 Winter Sow 3 0 https://www.facebook.com/share/p/1AaiprbM5j/ NEWSC Media by Topic Topic #5: Residential Infiltration Page 31Topic #5 Total Facebook: Likes: 45 Shares: 8 Views: 300+ *Did you share any of these Facebook posts through your communities Facebook account? If so, you can record those as passive outreach. Media Outlet Topic Publish Date Link Fox 11 Cleanup/IDDE 3/31/2025 https://fox11online.com/news/local/gallery/fox-wolf- watershed-alliance-seeks-volunteers-ahead-of-cleanup- dan-beckwith-chelsea-bishop-nfl-draft-outdoors-de- pere-river-voyageur-park-earth-day?photo=1 WFRV Cleanup/IDDE 4/9/2025 https://www.wearegreenbay.com/news/sustainably- speaking/sustainably-speaking-fox-wolf-watershed- alliance-to-host-watershed-clean-up-event/ GB Press Gazette Cleanup/IDDE 4/15/2025 https://www.greenbaypressgazette.com/story/news/loc al/2025/04/15/2025-nfl-draft-community-events- include-clay-matthews-earth-day-more/83096775007/ Civic Media Cleanup/IDDE 4/17/2025 https://civicmedia.us/news/2025/04/17/fox-wolf- watershed-alliance-hosts-clean-up-before-nfl-draft WFRV Cleanup/IDDE 4/22/2025 https://www.wearegreenbay.com/titletownsturn/nfl- verizon-local-group-gather-at-fox-river-trail-ahead-of- may-cleanup-event-to-get-a-headstart/ NBC26 Cleanup/IDDE 4/22/2025 https://www.nbc26.com/news/local-news/in-your- neighborhood/de-pere/everyone-can-do-something- earth-day-clean-up-along-fox-river WFRV Cleanup/IDDE 5/3/2025 https://www.wearegreenbay.com/news/local- news/volunteers-unite-at-70-sites-for-fox-wolf- watershed-cleanup-restoring-quality-to-water/ WFRV Fall Garden Prep 9/17/2025 https://www.wearegreenbay.com/news/sustainably- speaking/sustainably-speaking-northeast-wisconsin- fall-garden-preparation-tips-and-suggestions/ NEWSC Media/News Coverage The following sources of Media/News Coverage reach an estimated 100,000+ people and are a passive form of outreach/education. Page 32 Did any of your local news stations or papers do or write a story about your stormwater work? Media Outlet Topic Publish Date Link Fox 11 Shoreline Restoration 12/9/2025 https://fox11online.com/news/local/groundbreaking- held-for-project-to-conserve-lake-winnebago- farmlands-and-water-quality-brothertown-creek- chilton-restoration-erosion-runoff-soil-fox-wolf- watershed-alliance-calumet-county-environmental- protection-agency WFRV Shoreline Restoration 12/9/2025 https://www.wearegreenbay.com/news/local- news/conservation-project-aims-to-improve- brothertown-creek-and-lake-winnebago-watershed/ WFRV Smart Salting 12/17/2025 https://www.wearegreenbay.com/news/sustainably- speaking/sustainably-speaking-wisconsin-road-salting- techniques-to-limit-negative-water-impacts/ NEWSC Media/News Coverage Continued The following sources of Media/News Coverage reach an estimated 100,000+ people and are a passive form of outreach/education. Page 33 Did any of your local news stations or papers do or write a story about your stormwater work? Page 34 Annual Report Part 2: Stormwater Program Evaluation - Minimum Control Measures MCM # 2 Public Involvement and Participation - Volunteer Activities NEWSC Active Delivery on Behalf of Members: Volunteer Event - Annual Watershed Cleanup May 3, 2025 Fox-Wolf Watershed Alliance continues to add sites every year. If your community would like a site added for 2026, contact us via email (CleanUp@fwwa.org). Sites should have public access. Communities are asked to provide a site leader for the 1st year. 2025 Trash total details can also be found at: https://fwwa.org/2025/05/12/2025-fox-wolf-watershed-cleanup-trash-totals/ Municipality Number of Volunteers Allouez 26 Appleton 247 Brown County 101 Calumet County 22 Combined Locks 35 De Pere 33 Fond du Lac 65 Fox Crossing 18 Grand Chute 9 Green Bay 155 Hortonville 57 Howard 21 Kaukauna 98 Kimberly 64 Ledgeview 40 Little Chute 67 Menasha 82 Neenah 198 New London 14 Oshkosh 186 Sherwood 42 Winnebago County 75 Winneconne 40 Wrightstown 13 Page 35 2025 Annual Cleanup Volunteer Totals by Community Municipality Number of Active Education Volunteers Brown County 1 Calumet County 2 City of Appleton 8 City of De Pere 3 City of Fond du Lac 2 City of Green Bay 3 City of Neenah 8 City of Menasha 7 City of Oshkosh 3 Outagamie County 1 Village of Greenville 1 Village of Kimberly 1 Winnebago County 4 Chloride Monitoring: Fall 2025/Winter 2026 Chloride volunteers were trained and received active participation education and volunteering participation. During trainings, participants learned about chlorides and their impact on our waterways, proper winter salting/maintenance practices, and how to collect and submit chloride data. Documentation numbers are below and detailed data and photos can be found on the Google Map. 2025/2026 Google Maps of Volunteer Monitoring Locations Data: (data for internal use, volunteer information must be removed for any public use) https://docs.google.com/spreadsheets/d/1NFcohszqygUqu8r_VhhQtuFD7R6rvoEDyofbOaq9GV8/edit? usp=sharing Page 36 Municipality Number of Volunteers City of Appleton 6 City of Green Bay 2 Village of Greenville 3 City of Kaukauna 3 City of Menasha 2 City of Neenah 14 Village of Shawano 2 2025 Winter SOw Volunteers - Stream & Shoreline Management & Residential Infiltration Volunteers joined Fox-Wolf staff building mini greenhouses, utilizing milk jugs to grow native plants. Participants were able to keep what they want from the plants they grew and any extra plants were or will be used in restoration projects for the Winnebago Waterways Program at Fox-Wolf Watershed Alliance. During the event, volunteers were also educated on the benefits of native plants on shorelines, streams, and infiltration on our landscapes. Winter Sowing Hack: Grow Native Plants and Protect Water Quality Video: https://www.youtube.com/watch?v=1t-PzjC9mL4 Total number of active education participants by community Page 37 2025 Winter Sow Workshop: Jan 25 , 2025 th Neenah Public Library 240 E Wisconsin Ave, Neenah, Wi 54956 Municipality Hours of Volunteering City of Appleton 6 City of Fond du Lac 9 City of Fond du Lac 6 City of Oshkosh 18 City of Oshkosh 18 City of Oshkosh 18 City of Oshkosh 6 City of Oshkosh 3 City of Oshkosh 3 Town of Omro 3 Winnebago County 3 2025 Shoreline Restoration Volunteers- Stream & Shoreline Management & Residential Infiltration Volunteers joined Fox-Wolf staff at shoreline planting sites. They learned about the native plants utilized, why they are important, and the benefits they provide. A highlight of this volunteer opportunity was discussing how shoreline plantings and management reduce erosion, stormwater runoff, increase infiltration rates, and more. Shoreline Management & Restoration Page: https://fwwa.org/where-we-work/winnebago-waterways-2/shoreline-restoration-program/ Total number of active education participants by community Each row is one volunteer with their number of volunteers hours in the second column. Page 38 Name Organization or Muncipality Name Organization or Muncipality Daniel Faust City of Appleton Jordan Englebert Ruekert-Mielke Richard Hamlet City of Appleton Alanna Muller Ruekert-Mielke Nick Waldschmidt City of Fond du Lac Ryan Marshall The Handy Husband LLC Joe Bittner City of Green Bay Jason Loduha Town of Algoma Jon Humphrey City of Green Bay Dennis Jandrey Town of Buchanan Keeshawn Katers City of Green Bay Tyler DeBruin Town of Grand Chute Ciara Urbanek City of Green Bay Jason Tucker Town of Grand Chute Kyle Vander Loop City of Green Bay Morgan Tollard Town of Ledgeview Andrew Wick City of Green Bay Greg Potts Town of Ledgeview Tanner Matheny City of Green Bay Jr Lacy Town of Ledgeview Jonathon Paque Davel Engineering Cole Hendricks Town of Ledgeview Anthony Rozewski Davel Engineering Keven Tadeyeske Town of Ledgeview Jason Danen Duquaine Development Jacob Kraynin Town of Ledgeview Dave Wallace Duquaine Development Tenor Douglas Town of Ledgeview Nikki Raimer Jacobs Jason Gruetmacher Village of Harrison Mindy Metoxen Martenson & Eisele Eli Leitermann Village of Kimberly Richard Perschon Martenson & Eisele Bryan Blum Village of Little Chute Mike Dercks Mi-Mar Builders Dave Mattson Village of Little Chute Claire Ebben Outagamie County Rob Olkiewicz Village of Little Chute Brad Hartjes ra Smith MaKayla Erdmann Westwood Professional other newsc efforts: Page 39 Workshops and Trainings NEWSC Erosion Control Workshop NEWSC hosted an Erosion Control workshop to educate private contractors, private consultants, and municipal staff on erosion control practice. Topics covered included: environmental & regulatory compliance, requirements/permits, and installation, inspection, repairs, maintenance, and more. A field portion to a commercial, residential, and road active construction sites were included. Agenda: https://drive.google.com/drive/folders/1-xKdIdaJltm2tCcQplbaH-0B5IkfzGUJ April 29, 2025 8:00 am to 4:00 pm Town of Grand Chute Town Hall other newsc efforts: Page 40 Workshops and Trainings Continued Outagamie County HWY Department, Fox-Wolf Watershed Alliance, & WI Salt Wise Winter Equipment Open House This was a training for winter maintenance professionals who remove snow, apply roads salt, or maintain snow removal equipment. Attendees learned how using the right amount of salt can save time, budget, and our waters. October 10, 2025 9:00 am to 11:00 am 1313 Holland Road, Appleton, Wi Name Organization or Muncipality Name Organization or Muncipality Nick Kositzke Appleton Area School District Sydney Faestel State Senate Joe Sargent Appleton Area School District Lyle Byre University Wisconsin Oshkosh Greg Ebben City of Appleton Trevor Tanner University Wisconsin Oshkosh Glen Flemming City of Appleton Mike Martin University Wisconsin Oshkosh Matt Barnes City of Appleton Jacob Pickett University Wisconsin Oshkosh Josh Wranosky City of Appleton Bryce Manders University Wisconsin Oshkosh Kelly Much City of Appleton Scotty Siefert University Wisconsin Oshkosh Brian Hansen City of Appleton John Nennig University Wisconsin Oshkosh Anthony VanDaalwyk City of Appleton Zach Vossekuil University Wisconsin Oshkosh Randy Peters City of Appleton Tony Arellano University Wisconsin Oshkosh Lance Wilkinson City of Appleton Parker Mikulski University Wisconsin Oshkosh Cody Schmidt City of Appleton Jeremy Kamps Village of Little Chute Josh Karl City of Kaukauna Casey Verbruggen Village of Little Chute Eric Fischer City of Kaukauna Dan Kamps Village of Little Chute Riley Brochtrup City of Kaukauna Tyler Nechodom Village of Little Chute Jerrod Butteris City of Kaukauna Alex Ploor Village of Little Chute Pete Nelson City of Kaukauna Brady Propson Village of Little Chute Kyle Rich City of Kaukauna Zach Gussert Village of Little Chute Grady Nettekoven City of Kaukauna Jason Verbeten Village of Little Chute Kelly Stewart City of Marinette Jake Romenesko Village of Little Chute Brice Settlemier City of Marinette Michael Vanden Boom Village of Little Chute Adam Buyarski City of Marinette Scotty Wegand Village of Little Chute Randy Kramer City of Marinette Jim Shaffer City of Marinette Page 41 Annual Report Part 3: Stormwater Program Evaluation - Minimum Control Measures MCM # 4 Construction Site Runoff control NEWSC Model Ordinances & Reference Guides : Construction Site Ordinance & Construction Site Reference Guide NEWSC has an existing model ordinance and reference guide for construction sites to support communities with MCM #4 of their MS4 permit. These are updated with changes to the permit. With the permit delay since 2024, these will be updated when the new permit is released by WDNR and will be available for use. Members should utilize the current versions of the documents until the new permit is enacted. These model ordinances and references guides are available year round through the NEWSC member resources page as well. NEWSC Construction Site Model Ordinance NEWSC Reference Guide Construction Site Erosion Control Appendices Annual Report Part 4: Stormwater Program Evaluation Minimum Control - Measures MCM # 5 Construction Site Runoff control NEWSC Model Ordinances & Reference Guides : Post-Construction Ordinance & Post-Construction Reference Guide NEWSC has an existing model ordinance and reference guide for construction sites to support communities with MCM #5 of their MS4 permit. These are updated with changes to the permit. With the permit delay since 2024, these will be updated when the new permit comes out and will be available for use. Members should utilize the current versions of the documents until the new permit is enacted. These model ordinances and references guides are available year round through the NEWSC member resources page as well. NEWSC Post-Construction Model Ordinance NEWSC Reference Guide Post-Construction Stormwater Management Appendices The NEWSC Building and Development Committee has begun updating the NEWSC Model Ordinances and reference guides to enable a faster turnaround following the release of the new MS4 permit. Chair Brent Jalonen (2024 -2026) Calumet County Vice-Chair Justin Gierach (2025-2026) City of Oshkosh Secretary/Treasurer Kelly O’Malley (2023-2025) City of Green Bay/GEI Past-Chair Heath Kummerow (2023-2025) City of De Pere Municipal Committee John Neumeier (2025-2026) City of Kaukauna General Public Committee Valerie Joosten (2025) City of Green Bay Building & Development Committee Claire Ebben (2025-2026) Outagamie County Stormwater Quality Management Committee Sue Olson (2023-2025) City of Appleton Member-At-Large Mark Van Der Wegen (2023-2025) raSmith Member-At-Large Paul Willis (2023-2025) Mead & Hunt Thank you 2025 Leadership Council Members! Page 42 General Public Committee Municipal Committee Stormwater Quality Management Committee Building & Development Committee Valerie Joosten - City of Green Bay Dani Santry - Calumet County George Dearborn - Village of Fox Crossing Brian Wayner - Westwood Professional Services Chad Pelishek - Village of Harrison Adam Meade - City of Green Bay Anna Huber - Village of Kimberly John Neumeier - City of Kaukauna Sue Olson - City of Appleton James Rabe - City of Oshkosh Scott Ahl - City of Two Rivers Casey Canady - City of Oshkosh Jason Tucker - Town of Grand Chute Elizabeth Marks - Westwood Professional Chad Pelishek - Village of Harrison Josh Braun - Town of Grand Chute Adam Meade - City of Green Bay Sue Olson - City of Appleton Chuck Boehm - Brown and Caldwell Justin Keen - Cedar Corp Paul Willis - Mead and Hunt Brent Jalonen - Calumet County Abby Maslanka - Martenson & Eisele Heather Zaunmueller - AECOM Mark Van Der Wegen - raSmith Joe Hoechst - Village of Fox Crossing Chadwich Shaw - University Wisconsin Oshkosh Katelyn Seppanen - Westwood Professional Claire Ebben - Outagamie County Brad Hartjes - raSmith Nick Waldschmidt - City of Fond du Lac Brent Jalonen - Calumet County Abby Maslanka - Martenson & Eisele Katie (Buchalski) Vandenberg - Ruekert- Mielke Elizabeth Marks - Westwood Professional Andrew Wick - City of Green Bay Makayla Erdmann - Westwood Katelyn Seppanen - Westwood Professional Thank you 2025 Committee Members! Welcome New and Returning Leadership Council Members! Page 43 Chair Justin Gierach (2026 -2027) City of Oshkosh Vice-Chair Katelyn Vandenberg (2026-2027) Ruekert-Mielke Secretary/Treasurer Kelly O’Malley (2023-2026) Merjent Past-Chair Brent Jalonen (2026-2027) Calumet County Municipal Committee John Neumeier (2025-2027) City of Kaukauna General Public Committee Anna Huber (2026 - 2027) Village of Kimberly Building & Development Committee Claire Ebben (2025-2027) Outagamie County Stormwater Quality Management Committee Mark Van Der Wegen (2026-2027) raSmith Member-At-Large Abby Maslanka (2026-2027) Martenson & Eisele Member-At-Large Paul Willis (2023-2026) Mead & Hunt Member-At-Large Jessie Kreiling (2026-2027) Town of Grand Chute 2/19/2026 1 Please type your name (first and last) and affiliation into the chat for attendance. CITY OF OSHKOSH EROSION CONTROL PRESENTATION Objectives •Prevent Avoidable Problems •Everyone is Responsible •Know What to do •Save Time and Money •Installation Sequencing Plan EC FIRST •Rework costs Time, Money, and Headaches •Project Shut Down if not Implemented or Maintained RESPONSIBLE PARTIES •GENERAL CONTRACTOR –Responsible for ENTIRE SITE –Need to follow up with Sub-Contractors to ensure they are following BMP’s daily –Must manage entire site until final site restoration is completed and growing to 70% •SUB CONTRACTOR –Need to manage their working area BMP’s daily –Should not rely on General to manage their working area and BMP’s •EVERYONE MUST CLEAN UP AT END OF DAY & SWEEP CHAIN OF COMMAND •Site Inspector is first point of contact –Site inspector will inform Craig Ramthun of all erosion control issues –Any issues the site inspector finds must be corrected by end of day •Second point of contact is Alyssa Deckert •Third point of contact is Justin Gierach 2/19/2026 2 EROSION CONTROL ENFORCEMENT •If DNR arrives on site contact ALYSSA / CRAIG IMMEDIATELY •The inspector has the right to shut down the contractor for erosion control issues –See Section 100.34 of the Standard Specifications •The City will conduct all weekly and rain event inspections for the project site DNR PERMIT REQUIRED INSPECTIONS •The City will inform site inspector of all issues •The City will attempt to inform the contractor onsite of any issues –This will be done by talking to the workers on site •The City will send a formal inspection form to the general contractor following inspections –Any issues on the form need to be addressed within 24 hours –The contractor will send photos of the completed corrective measures once they have been completed to Casey/Brittney. •This will avoid the potential for liquidated damages if repetitive issues are reoccurring. •Severe violations will result in mandatory refresher ground control trainings for all crews involved and potentially liquidated damages. PERMITRACK INSPECTION FORM Greater Elkhart County Stormwater Partnership Inspection Report Villas at Waterford Commons Second (2015) Address 1800-2100 Regent Dr. Goshen IN 46526 View Project View Inspection Inspector:Karol Gosk, Project Engineer (574) 533-9913 kgosk@abonmarche.com 03/02/2020 02 : 40 PM Warm, Sunny 48 F 03/02/2020 0.22 in CoCoRahs Routine Inspection Date: Inspection Time: Weather Trends: Temperature: Last Precip. Date: Last Precip. Amount: Last Precip. Source: Reason for Inspection: Comments: Inspection Items Name: Perimeter Control -- Mulch/ Composite Silt Sock Required: Yes Status: Inactive Inspected: Yes Condition: N/A Description: Silt sock properly installed and maintained. Comment:Not in use at the project. Name: Wash Out Facilities -- Concrete Washout Signage Required: Yes Status: Inactive Inspected: Yes Condition: N/A Description: Signage must be placed at concrete washout, confirming location for drivers. Page 1 of 7 I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and provided the information submitted. Based on my inquiry of the person or persons who managed this system or those persons directly responsible for gathering the information, the information submitted, is to the best of my knowledge and belief true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Signature Date Page 7 of 7 PERMITRACK INSPECTION FORM Name: Perimeter Control -- Silt Fence Required: Yes Status: Active Inspected: Yes Condition: Not Applied Description: Silt fence is properly installed and maintained. Must be securely entrenched and staked with adjoining sections wrapped together, not overlapped. Ends should be turned up slope to prevent bypass. Comment:No fencing installed at the project. Name: Sediment Control -- Individual lot controls Required: Yes Status: Active Inspected: Yes Condition: Not Applied Description: Individual lot controls are properly installed and maintained. This includes perimeter controls at front and rear of lots, and along side yards next to finished lots and common areas, stable construction entrance, washout area, and inlet protection.Comment:No erosion control measures are in use at the project. Name: Perimeter Control -- Silt Fence Required: No Status: Active Inspected: Yes Condition: Not Applied Description: Silt fence is properly installed and maintained. Must be Page 4 of 7 Name: Admin / Site Management -- Permits & SWPPP Contact Posted Required: Yes Status: Active Description: Inspected: Yes Condition: Routine Maintenance Rule 5 Notice of Intent (NOI) and SWPPP Contact Information (Trained Individual) must be posted in a visible location near site entrance. Posting is wet.Comment: Page 6 of 7 TRACKOUT CONTROL TRACKING PAD NOT INSTALLED PROPERLY INSTALLED TRACKING PAD MANUFACTURED TRACKOUT CONTROL TRACKING PAD HAS FAILED MANUFACTURED TRACKOUT CONTROL 2/19/2026 3 TRACKING PAD WDNR TECH STANDARD 1057 •Tracking pad must be installed prior to traffic leaving the site •STONE SIZE –No longer require 3 to 6 inch clear or washed stone only •TRACKING PAD SIZING –12” Deep, 12’ wide, minimum of 50’ long •Fabric shall be installed under the stone when needed. •Can utilize manufactured trackout control devices. TRACKING PAD FAILURE TRACKING PAD REQUIRES REPLACEMENT TRACKING PAD HAS FAILED TRACKOUT CONTROL WDNR TECH STANDARD 1057 •If trackout control is failing, corrective measures are required –Signs of Trackout Control Failure •Stone in tracking pad compacted/full of mud •Mud being tracked onto road surface –Corrective Measures Upon Failure •Scrape road surface with flat shovel or machine •Sweep road surface with broom or machine •Replace or add stone to tracking pad OFFSITE SEDIMENT MATERIAL TRACKED ON ROAD MATERIAL TRACKED ON ROAD MATERIAL TRACKED ON ROAD MATERIAL TRACKED ON ROAD TRACKOUT CONTROL / OFFSITE SEDIMENT CORRECTION MECHANICAL STREET SWEEPING WITH DUST CONTROL MECHANICAL STREET SWEEPING WITHOUT DUST CONTROL (Need to control dust) 2/19/2026 4 SOMEONE PHYSICALLY SCRAPES THE ROAD SOMEONE PHYSICALLY SWEEPS ROAD OFFSITE SEDIMENT TRACKING •All sediment shall remain within the working area –On road reconstruction projects, a tracking pad may be required. –On project sites, multiple tracking pads may be required to eliminate the transport of sediment to the road surface. •If sediment does leave the project area it must be cleaned up in a timely manner. CONCRETE CUTTING CONCRETE SAW CUTTING BEFORE PAVEMENT REMOVAL (NOT CLEANED UP) CONCRETE SAW CUTTING AFTER PAVING (WINDROW THAT REQUIRES REMOVAL) CONCRETE SAW CUTTING WITH INLET PROTECTION INSTALLED AND STONE BAGS CONCRETE SAW CUTTINGS COLLECTED BY INLET PROTECTION CONCRETE WASHOUT CONCRETE WASHOUT INTO AN INLET PROTECTION (UNAPPROVED) CONCRETE WASHOUT INTO SIMPLE CONTAINMENT AREA (APPROVED) CONCRETE PAVING / SAW CUTTING •Inlet protection must be installed before any concrete cutting begins •Material must be cleaned up immediately after cutting •Concrete cuttings / sludge is extremely toxic •Inlets and flowline are not to be used for concrete clean out •No vehicle traffic on newly paved concrete until it has been swept to reduce concrete dust from blowing 2/19/2026 5 INLET PROTECTION INLET PROTECTION NEEDS TO BE INSTALLED PROPERLY INLET PROTECTION NEEDS TO BE SIZED APPROPRIATELY FOR THE INLET INLET PROTECTION REQUIRES A 2X4 OR 2X2 TO FUNCTION CORRECTLY INLET PROTECTION REQUIRES A 2X4 OR 2X2 TO FUNCTION CORRECTLY NOT AN APPROVED FORM OF INLET PROTECTION INLET PROTECTION SHOULD NEVER BE YOUR ONLY BMP INLET PROTECTION NOT INSTALLED INLET PROTECTION NOT INSTALLED BUT SOMEONE TOOK THE TIME TO INSTALL SEDIMENTLOGS INLET PROTECTION REQUIRES DAILY MAINTENANCE INLET PROTECTION REQUIRES DAILY MAINTENANCE 2/19/2026 6 INLET PROTECTION REQUIRES DAILY MAINTENANCE INLET PROTECTION REQUIRES DAILY MAINTENANCE FLOW LINES LEADING TO INLETS NEED TO BE KEPT CLEAN AT ALL TIMES DON’T LET YOUR FLOW LINES GET TO THIS POINT SEDIMENT SETTLES AROUND INLET PROTECTION, SO REMEMBER TO REMOVE DEBRIS ONCE VEGETATION IS ESTABLISHED INLET PROTECTION DOES COLLECT A LOT OF SEDIMENT INLET PROTECTION WDNR TECH STANDARD 1060 •All inlet protection must Type D Modified, unless otherwise specified •Make sure all inlets adjacent to working area are protected –Make sure all downstream inlets are protected –Also make sure any inlets along the haul route where tracking is occurring are protected •New inlets are required to get new inlet protection •Old inlets can use old inlet protection that has been cleaned and is in good condition –No rips –No punctures •Secure 2x4 or 2x2 to inlet protection so they do not disappear –The 2x4 or 2x2 redirects sediment into inlet protection to filter out debris and dirt PRE-PLANNING IS KEY TO DEWATERING BEFORE YOU DIG, SET UP A DEWATERING PLAN AND HAVE MATERIALS ONSITE TO IMPLEMENT (ASSUME THE WORST, HOPE FOR THE BEST) DEWATERING ZERO DISCHARGE CONTROL DISCHARGE TO A LIVE STORM SEWER 2/19/2026 7 A DEWATERING BAG THAT IS UNDERSIZED WITH NO ADDITIONAL BMP’s A DEWATERING BAG THAT IS SIZED CORRECTLY BUT IS NOT CONTAINING ANY WATER (NOT EFFECTIVE ON ITS OWN) DEWATERING TRAIN 1 DEWATERING BAG ONLY WATER AFTER PASSING THROUGH DEWATERING BAG, VEGETATIVE BUFFER, AND STORM CULVERT DEWATERING TRAIN 1 MULTIPLE DITCH CHECKS WATER AFTER PASSING THROUGH DEWATERING BAG, VEGETATIVE BUFFER, STORM CULVERT, & 2 SETS OF DITCH CHECKS DEWATERING TRAIN 2 DEWATERING BAGS WITH CHECK DAMS MULTIPLE FILTERING CHECK DAMS BEFORE THE INLET DEWATERING TRAIN 2 SEDIMENT TRAPPED BY THIS METHOD THIS IS WHAT WE DO NOT WANT TO SEE ANOTHER APPROACH TO DEWATERING IF A STANDARD DEWATERING BAG ISN’T EFFECTIVE, YOU CAN ALWAYS FIND A BAG LARGE ENOUGH OR A DUMPSTER WITH BAFFLES AND A POLYMER WORKS 2/19/2026 8 ANOTHER APPROACH TO DEWATERING THIS DUMPSTER WAS PLACED NEXT TO LAKE WINNEBAGO FINAL STAGE OF THE WATER IS DISCHARGED DIRECTLY TO LAKE WINNEBAGO YOU CAN MAKE A DEWATERING AREA ACT LIKE A SEDIMENT BASIN OR SCALE IT DOWN FOR SMALLER PUMPING OPERATIONS OR GET CREATIVE AND USE WHAT IT IS AVAILABLE IF YOU HAVE THE LUXURY USE A REAL SEDIMENT BASIN TRENCH WATER TRENCH WATER AFTER TREATMENT WITH FLOCCULANT WHAT WE DO NOT WANT TO SEE IF YOUR DISCHARGE LOOKS LIKE THIS, MORE IS REQUIRED Consider this your first warning for the project. MULTIPLE TREATMENTS GETS THE WATER TO THE DESIRED RESULT FROM LEFT TO RIGHT 1. BOTTLE – 1 1. Untreated trench water 2. BOTTLE – 2 1. Treatment through a dewatering bag. 1. Water is unchanged 3. BOTTLE – 3 1. Water clarity greatly improved 1. Trench 2. Bag 3. Vegetative Buffer 4. Water at culvert discharge 4. BOTTLE – 4 1. Water clarity is acceptable 1. Addition of ditch check at culvert 2/19/2026 9 DEWATERING WELL •True dewatering wells discharging clean water can be discharged directly to a catch basin –The hose must fully extend to the catch basin and be inserted into the back side of the casting opening. –The dewatering well cannot be located next to an active trench. Any wells located adjacent to an active working area must be treated as if they are dirty. •All dewatering operations must be treated if they are not a true well •Brown water discharge is not permitted. –If you have questions at the start, talk to your inspector DEWATERING WDNR TECH STANDARD 1061 •Dewatering occurs on every site. Preparation is key to keeping sediment from entering the storm system. •Oshkosh soils mostly consist of clay so a dewatering bag alone WILL NOT be effective. –Refer to WDNR Technical Standard Matrix –Dewatering bag WILL ONLY BE EFFECTIVE with the addition of a polymer •A combination of multiple treatments is the most effective method, but pre-planning for space is required. TURBIDITY BARRIER TURBIDITY BARRIER JOINT NOT CONNECTED PROPERLY TURBIDITY BARRIER MUST EXTEND FULLY TO SHORELINE TURBIDITY BARRIER WDNR TECH STANDARD 1069 •Must be installed before any work takes place in a waterway. –Make sure your barrier is designed for the flows or wave action the water body has •Lake Winnebago is different than Fox River –The barrier must be securely staked to prevent floating back to shore –The barrier must be secured to the waterway bottom to prevent sediment from escaping –The barrier must extend from the shore edges completely around working area –Must be left in place for 24 hours after work in the waterway is complete SILT FENCE NO TRENCH, STAKES ON THE WRONG SIDE, AND A BIG HOLE 2/19/2026 10 A PROPERLY INSTALLED SILT FENCE TRENCH A PROPERLY INSTALLED SILT FENCE WITH COMPACTION PERIMETER CONTROL DEVICES NEED WEEKLY INSPECTION OR AFTER EVERY 1/2” OF RAIN IF SEDIMENT ACCULULATES TO HALF THE FENCE HEIGHT CLEAN IMMEDIATELY SILT FENCE WDNR TECH STANDARD 1056 •Silt fence can be substituted with sediment logs –Silt fence shall be installed 6” deep and soil compacted to securely hold the silt fence. •Field test your installation by pulling up sharply on the silt fence after installation. The silt fence should not move. –The stakes on the silt fence shall be installed on the downstream side of the silt fence. –The top of the silt fence shall be tight with no sags between stakes. –If silt fence needs to be spliced together, a full twist between fence pieces is required. •Another option is to run the silt fence one full segment past each other. –Silt fence must contain a cord at the top of the fabric –If silt fence becomes damaged, repair or replace the damaged section –Perimeter control devices must be maintained until final restoration begins SEDIMENT LOGS •If utilizing sediment logs: –Please refer to the manufacturers recommendations •What are the staking requirements? •Is trenching required? –Some sediment logs require trenching to effectively control sediment –Logs must be installed with an overlap at the end utilizing a shingle technique SEDIMENT LOGS WORK WELL IF ACCESS IS NEEDED STOCK PILES STOCK PILES •Stock piles are required to have perimeter control installed around them •Stock piles that are unused for more than 7 days must be stabilized –A quick establishing seed is recommended •Typically oats are used –A hydro mulch shall be used to lock soil in place until vegetation is established. •No straw per city specifications –If a vegetative cover is not used, a water-proof covering can be utilized instead. •A tarp or plastic placed over the entire stock pile. 2/19/2026 11 HYDRO MULCH ENSURE PROPER COVERAGE OF HYDRO MULCH IN AN EVEN LAYER OVER ALL EXPOSED SOILS. TAKE CARE TO ENSURE HYDRO MULCH IS ONLY SPRAYED OVER EXPOSED SOILS. MULCH SPRAYED ANYWHERE ELSE SHALL BE CLEANED UP AT CONTRACTORS EXPENSE HYDRO MULCH IN PLACE OF EROSION MAT •Hydro mulch can be used in place of erosion mat in terraces per engineers approval. –Refer to the City of Oshkosh specifications for pre-approved hydro mulches. If not using a pre-approved hydro mulch, please submit for engineers approval before installation. –Refer to manufacturers recommendations for installation specifications RESTORATIONS CAN AND DO FAIL GIVE YOURSELF ENOUGH TIME TO ESTABLISH VEGETATION BEFORE WINTER. EROSION MAT ALONE WILL NOT PREVENT SEDIMENT TRANSPORATION. EROSION MAT WDNR TECH STANDARD 1052 •Erosion mat can be either short-term or long-term –In Urban settings, urban class erosion mat and staples must be installed •This is generally referenced when mowing will be accomplished within two weeks after installation. –Steel staples are not acceptable. Bio staples only. –Mat utilizing photodegradable netting shall not be installed after September 1st. •A biodegradable stitching must be used –Ensure erosion mat is installed over all disturbed areas including the area that any perimeter devices where installed. –Refer to manufacturers recommendations with staple pattern. •City specifications require staples every 12” if mat edge is not trenched along curb edging, driveway aprons, and sidewalk. QUESTIONS / COMMENTS NOT APPROVED! THIS WAS DONE IN THE CITY HALL PARKING LOT! 2/19/2026 12 Erosion Control Regulations •State implemented Construction Site Erosion Control Regulations in 2004 •City implemented Construction Site Erosion Control Regulations in 2012 INLET PROTECTION EXAMPLES MAKE SURE ALL INLET PROTECTION IS INSTALLED CORRECTLY INLET PROTECTION CAN COME IN MULTIPLE FORMS OUTFALL RESTORATION WHAT WE WANT TO SEE DISTURBED AREA BY OUTFALL MUST BE RESTORED THE SAME DAY THE WORK TAKES PLACE SILT FENCE CANNOT BE USED IN SWALES IF CROSSING A CHANNEL, SUBSTITUTE SEDIMENT LOGS OR STONE BAGS IN PLACE OF SILT FENCE You Can Help Oshkosh residents and homeowners can help improve the City’s storm water management in the following ways: • Build a rain garden or install a rain barrel • Direct roof downspouts to grassy areas away from driveways and sidewalks • Plan for minimal hard surfaces on your property • Pick up pet waste and dispose of it in the trash or flush down toilet • Water from carpet, drapery or upholstery cleaning should be discharged to the sink, toilet or other drain connected to the Sanitary sewer system • Instead of pressure washing, use dry methods such as mops, brooms, rags or wire brushes to clean the pavement, buildings and equipment as much as possible • Wash cars on lawns where the water can soak in or use a car wash • Direct sump pump discharge to lawn if possible • Keep grass clippings out of the street • Test your soil for fertilizer needs and only apply what is needed • Do not use storm drains for dumping anything Storm Water Management For more information please contact: Alyssa Deckert, P.E. Civil Engineering Supervisor adeckert@oshkoshwi.gov Justin Gierach, P.E. Engineering Division Manager/ City Engineer jgierach@oshkoshwi.gov 215 Church Avenue P.O. Box 1130 Oshkosh, WI 54903-1130 (920) 236-5065 Continuous Improvement The City of Oshkosh is working to protect its infrastructure, businesses and homes from damage due to flooding. It is also improving the water quality of the nearby lakes and rivers so that its citizens may boat, fish, swim and enjoy cleaner water. For ways citizens can help improve storm water management and for additional information on the city’s storm water utility please visit our websites at: City of Oshkosh: oshkoshwi.gov Storm Water Utility: oshkoshwi.gov/StormWaterUtility City’s Storm WaterManagement Program The City of Oshkosh has embarked on an aggressive program to improve storm water management for both flood control and pollution reduction. Storm water management not only improves safety, protects property, and enhances water quality. It also promotes a strong business climate by maintaining an efficient transportation system. Storm Sewer Improvements Storm Water Utility Fees are used for many improvements including replacing existing storm sewer and building new storm sewers. Storm sewers are usually upgraded as part of the street reconstruction process. Storm sewer improvement projects replace aging sewers and increases the capacity of the storm sewer system in order to reduce flooding. Since 2009 the City has embarked on an aggressive storm sewer construction program. This program reflects the City’s goals to improve infrastructure, reduce flooding, and improve water quality. The accompanying graph illustrates the length of storm sewer installed annually by the storm water utility. Paying for the Storm Water Management Program The storm sewer upgrades and other projects listed in this brochure are expensive but provide great benefits. People in the affected areas have noticed the reduced flooding in their neighborhoods. Funding for the City’s storm water program comes from state and federal grants and the Storm Water Utility Fee, which was established in 2002. The fee is paid by every City property owner based upon the amount of impervious surface on each property. In 2013, Storm Water Utility Fees generated almost $6.3 million dollars that are used to pay the debt on past projects, help fund new projects and finance daily operations. Additional projects will be needed to continue storm water improvements throughout the City. What is Storm Water and Why is it Important? Storm water is the water that runs off the land’s surface when it rains or when snow melts. Storm water flows onto streets and into storm sewers or ditches and is carried directly into nearby lakes or rivers including Lake Winnebago, Lake Butte des Morts, Fox River and Sawyer Creek. In Oshkosh, storm water is important for two reasons: 1. Flooded streets and property. 2. Pollution of lakes and rivers. Flooding An impervious surface, such as a driveway, rooftop or street, does not allow the rain to soak into the ground. The amount of impervious surfaces increase when buildings, parking lots, streets and other structures are built on previously vegetated land. Increased impervious surfaces result in more water running off the land and can lead to flooding if not managed properly. Much of the City of Oshkosh is built on flat land. As a result, storm water tends to pond in depressions on the land’s surface, which can lead to nuisance conditions. Storm water flooding can result in private property damage, hinder emergency vehicle access, endanger public safety, and damage roads, bridges and other infrastructure. Pollution As storm water flows across driveways, parking lots, lawns, streets and other surfaces, it picks up pollutants along the way. The pollution comes from many sources — oil leaking from vehicles, tire and brake lining wear, lawn fertilizers and pesticides, soil from construction sites, grass clippings, and litter. Storm water typically runs directly into streams, rivers and lakes. When this pollution reaches the lakes and rivers, it can result in nuisance algae and aquatic weed growth, high bacteria levels, turbid water, toxic levels of metals or petroleum, and low oxygen levels. The City of Oshkosh, like almost all cities in Wisconsin, is under state and federal regulations to reduce storm water pollution. Page 1 of 6 City of Oshkosh Residential Stormwater Utility Credit Policy Residential Credit Policy 10/26/2010 I. Purpose and Scope The purpose of this Stormwater Utility Credit Policy is to encourage actions by residential property owners within the city that: 1) Reduce stormwater flows and volumes, 2) Reduce stormwater pollution and 3) Reduce the utility’s costs in providing proper management of stormwater runoff. As applied to this policy, the term ‘property’ or ‘properties’ will refer to single-family, two-family, and three-family residential parcels. All other properties are considered non-residential. (NOTE: a separate stormwater utility credit policy has been established for non-residential properties.) Credits to user fees will only be allowed when it can be demonstrated by the customer that an action as described in Section III of this policy has been taken by the customer and the action meets the guidelines specified in this policy document. This policy does not apply to stormwater management measures that are owned and/operated by the City of Oshkosh. Properties served by stormwater management facilities installed to meet state and/or local stormwater regulations are not eligible for credit from these facilities. It also should be noted that there are 3 rate categories for single family properties as summarized below: Tier Impervious Area ERU Rate TR 1 Less then 1,750 sq. ft. 0.67 ERU TR 2 1,750 – 3,750 sq. ft. 1.00 ERU TR 3 Greater than 3,750 sq. ft. 1.33 ERU II. Credit Structure For the purpose of generating applicable credit rates, the municipal stormwater management services funded through the user fee are divided into two major categories. The credit eligible category is further divided into two sub-categories. Category A (utility-wide services) 25% Category B (credit eligible services) B1: activities that meet flow management criteria 50% B2: activities that meet pollution reduction criteria 25% Fees to support Category A programs are applied throughout the utility customer base and credits are not allowed for these components. These costs are required to run the City of Oshkosh’s stormwater management program and these programs benefit all property owners within the City of Oshkosh. Only the costs associated with Category B are eligible for a credit. These are costs associated with the utility’s efforts to maintain the capacity of the stormwater conveyance system and implement and maintain pollution control practices. The tasks included under each category, and the percent credit for each category under this policy may be revised based upon a re-analysis of the stormwater program budget and the percent distribution of costs by category. Modifications must be approved by Common Council Page 2 of 6 City of Oshkosh Residential Stormwater Utility Credit Policy Residential Credit Policy 10/26/2010 resolution. The approved credit amount will be applied to each stormwater utility bill for as long as the property owner maintains their credit eligibility status in accordance with this policy. III. Credit Criteria Residential properties may be eligible for a credit to their stormwater utility fee under two circumstances: 1) Installation and maintenance of a Best Management Practice and/or 2) Impervious area that is riparian to a water body. 1. Best Management Practice Credit The following are common examples of best management practices property owners may install and maintain to reduce their impact on the city’s stormwater management services. Property owners must demonstrate the proper installation and agree to maintain the approved best management practice Property owners installing approved best management practices may be eligible for up to 75% credit for practices that reduce both the quantity of stormwater runoff (up to 50% credit), and improve the quality of the runoff (up to 25% credit). Eligible best management practices are: • Rain Gardens (typically these will qualify for both quantity and quality credit) Property owners who install a rain garden on their property shall use the UW-Extension Service Publication (GWQ037): “Rain Gardens A how-to manual for homeowners”. Copies of this manual are available directly from the UW-Extension Service web address at http://clean-water.uwex.edu/pubs/pdf/home.rgmanual.pdf or from the City of Oshkosh Department of Public Works for a printing fee. • Rain Barrels (typically these will qualify for quality credit only) Property owners who install rain barrel(s) must include manufacturer’s literature with their credit application and state that the manufacture’s guidelines have been followed. For custom built rain barrels, the property owner must submit photographs of the installed practice along with the dimensions (height, width, and length) of the practice. • Other Equivalent Best Management Practices The credit calculation procedure for each of these best management practices is described on the forms at the end of this document. Property owners may submit documentation demonstrating the effectiveness for control of stormwater quantity and/or quality for alternative management practices not identified in this policy. The city will review the documentation and determine the suitability for credit of the alternative management practice. 2. Riparian Credit Properties that are directly riparian to the following water bodies: Lake Butte des Morts, Fox River, or Lake Winnebago are eligible for this credit. (Constructed channels adjacent to Lake Page 3 of 6 City of Oshkosh Residential Stormwater Utility Credit Policy Residential Credit Policy 10/26/2010 Winnebago, Fox River, or Lake Butte de Morts are considered riparian. See map attached to this document for the areas designated as “constructed channels for purposes of this policy). Residential property impervious areas that drain directly to one of these water bodies without entering into the municipal stormwater conveyance system are eligible for up to 50% credit. The property owner is only eligible for the quantity portion of the utility credit under the Riparian Credit Section of this policy. For example: a property with one half of the impervious area draining directly to an eligible water body would receive a 25% credit. Unless the property owner provides evidence (such as photographs showing drainage slopes on the property) that more than one half of their impervious area drains directly to an eligible water body, the property shall receive a 25% credit (1/2 the maximum allowed). IV. Credit Request Submittal Requirements The Director of Public Works (or designee) shall review credit request submittal for compliance with this policy. 1. Review Fee The following non-refundable review fee is required with each application: a. Property owners requesting Best Management Practice Credit: $10.00 b. Property owners requesting Riparian Credit of 25%: $10.00 c. Property owners requesting a Riparian Credit greater than 25%: $10.00 d. Property owners requesting Best Management Practice Credit and 25% Riparian Credit: $10.00 e. Property owners requesting Best Management Practice Credit and Riparian Credit greater than 25%: $10.00 2. Required Documentation form provided at the end of this document a. Credit Application Form The application form is attached to this policy. b. Owner Certification The applicant shall provide written certification that the best management practice(s) that are the subject of the credit have been constructed and are functioning in the manner indicated on the credit request documentation. and/or The applicant shall provide written certification that the percentage of a parcel’s impervious area draining to eligible water bodies is correct and that drainage patterns have not been altered. c. Supporting Documents • Drawing of the property showing location of best management practice, and impervious area draining to the best management practice. • Copy of manufacturer’s information (for rain barrels), or photograph of installed custom built rain barrel(s). • Plant list (for rain gardens) • Photograph of the “other equivalent best management practice” Page 4 of 6 City of Oshkosh Residential Stormwater Utility Credit Policy Residential Credit Policy 10/26/2010 • Property drawing showing areas of riparian property with drawing of property drainage pattern and supporting photographs (required for Riparian Credit application if requesting more than 25% credit). • Signed property owner’s maintenance agreement (attached to this document) . 3. Approval Process a. Director’s (or Designee’s) Review The Director shall have thirty (30) calendar days to review credit applications, whereupon the Director may approve or deny the application as submitted, or provide comments for resubmittal. In the event of a resubmittal request, the thirty-day period referred to above shall begin again pending the receipt of all information requested. b. Appeals See Section 24.14 of the City of Oshkosh Municipal Code relating to Storm Drainage Regulation. c. Annual Reevaluation All credits shall be subject to an annual review for compliance with the current year’s credit policy. Credits may vary or be eliminated over time subject to the terms of the current year’s credit policy. It is the responsibility of the billed customer to provide the Director or designee with any and all changes to the conditions of the onsite best management practices and conditions that may affect the credit rate for the site. Each year the homeowner will return a post card provided by the City indicating that the rain barrel and/or rain garden are in place as designed. Violations of the terms and/or conditions of the credit request may be subject to collection of utility fees retroactive to the date of the violation. d. Effective Date Pending approval of the credit request, any and all credits will be granted effective to the date of the complete credit request submittal. The Director shall determine whether a submittal is complete using the current credit request submittal requirements. Page 5 of 6 Residential Credit Policy 10/26/2010 City of Oshkosh RESIDENTIAL PROPERTY STORMWATER UTILITY FEE CREDIT APPLICATION FORM, OWNER’S CERTIFICATE, AND MAINTENANCE AND RIGHT OF ENTRY AGREEMENT Note: This application form is to be used only for one, two, and three family home sites. Residential Property Stormwater Utility Credit Application & Certification Form Type of Application: (check one or both): Best Management Practice (rain garden / rain barrel) Riparian Property Owner Name: ____________________________________________________ Owner Address: ____________________________________________________ Owner Phone Number: ____________________________________________________ Address of Property for Credit Application (if different from Owner Address) ________________________________________________________________________ Best Management Practice (BMP) Credit Application Calculation Rain Garden(s) Total impervious area of property (number will be provided by city upon request) Impervious Area Draining to Rain Garden Size of Rain Garden: Credit = (b) ÷÷÷÷ (a) x 75% (round to nearest %) (a) _________ (sq. ft.) (b) _________ (sq. ft.) (c) _________ (sq. ft.) (d) _________ % Rain Barrel(s) Total impervious area of property (number will be provided by city upon request) # of downspouts with rain barrel: Total roof area to rain barrel(s): Credit = (g) ÷÷÷÷ (e) x 25%: (round to nearest %) (e) _________ (sq. ft.) (f) __________ (g) _________ (sq. ft.) (h) __________% Total BMP Credit (maximum of 75%) (line d + h) (i) ___________ % For Rain Garden credit enclose a list of the plants used For a Rain Barrel credit enclose a copy of the manufacture’s installation instructions or a photograph of the installed rain barrel(s) Page 6 of 6 Residential Credit Policy 10/26/2010 Residential Property Stormwater Utility Credit Application & Certification Form (continued) Riparian Property Credit Application Water body receiving direct property drainage: Lake Butte des Morts Fox River Lake Winnebago Total impervious area of property (j) _________ (sq. ft.) (number will be provided by city upon request) Impervious area directly draining water body (k) _________ (sq. ft.) Credit = (k) ÷÷÷÷ (j) x 50%: (l) __________% (if credit request is greater than 25% include documentation) The information presented on this Residential Property Stormwater Utility Credit Application & Certification Form is true and accurate to the best of my knowledge. ____________________________________________ _______________ Signature of Property Owner Date Residential Property Stormwater Utility Credit Maintenance Agreement and Right of Entry Agreement The best management practice on the property identified on the Residential Property Stormwater Utility Credit Application & Certification Form has been installed according to the manufacturer’s recommendations. If I have installed a rain garden on my property I certify that the rain garden is constructed using the guidance provided in the UW-Extension publication “Rain Gardens, A how-to manual for homeowners” (publication GWQ037). I hereby grant the City permission to enter this property for the sole purpose of conducting site inspections of my on-site stormwater management practices or to verify the impervious areas with direct drainage to an eligible water body. . ____________________________________________ _______________ Signature of Property Owner Date Submit this Application to: City of Oshkosh Department of Public Works Call: (920) 236-5065 with questions 215 Church Ave P.O. Box 1130 Oshkosh; WI 54903-1130 Æ%91 (/41Æ%44 Æ%26 Æ%44 (/41 (/45 (/45 (/45 Æ%21 Æ%76 Legend Riparian Zones Municipal Limits 0 10.5 Miles L:\work\projects\106913\GIS\Figure1_1.mxd Figure 1-1 City of Oshkosh, WIStormwater Utility FeeCredit-Eligible Riparian Zones Sept. 2009106913 Fox River ´ Lake Winnebago Lake Butte des Morts Campbell Creek Sawyer Creek Nicolet Ave Bowen St Alpine Ct Starboard Ct Windward Ct Leeward Ct Anchorage Ct Bavarian Ct Starboard Ct W Taft Ave Adams Ave High Ave Coolidge Ave Tyler Ave Pierce Ave Van Buren Ave ENLARGED ENLARGED NOTICE OF CITY OF OSHKOSH GRASS CUTTING REQUIREMENTS Residents are reminded that blowing or placing grass clippings, leaves, or other debris onto the street is prohibited. Storm water runoff carries grass clippings and other debris on the street pavement surfaces into the storm sewer system. The City of Oshkosh’s storm water runoff drains directly to local lakes, rivers, and streams. Storm water runoff is not treated at the Wastewater Treatment Plant. Debris carried by storm water runoff can cause inlets and storm sewers to plug and this can lead to flooding. Additionally, grass clippings and leaves contain nutrients that help feed algae blooms on adjoining waterways. PER MUNICIPAL CODE CHAPTER 25 / STREETS & SIDEWALKS Section 25-26 Obstructions in Street prohibited This code indicates that no person shall place or deposit any substance in any sidewalk or street without a permit. In addition, no person may obstruct or stop the flow of water in any ditch, sewer, gutter, or culvert along or across any street, lane, alley, public grounds, or sidewalk in the City. PER MUNICIPAL CODE CHAPTER 14 / STORM WATER MANAGEMENT Section 14-30 Discharge Prohibitions This code indicates that no person shall throw or discharge any pollutants to the municipal storm sewer system. Property owners face a potential citation for violation of the Municipal Code. THIS FORFEITURE IS $232 FOR THE FIRST OFFENSE. PLEASE HELP KEEP GRASS OUT OF THE STREET, WHICH WILL MEAN LESS DEBRIS THAT REACHES THE STORM SEWER SYSTEM. YOUR EFFORTS WILL HELP TO REDUCE POLLUTION AND ALGAE GROWTH IN LOCAL WATERWAYS. City of Oshkosh, WI Inspection Summary Report 2025-01-01 through 2025-12-31 Inspections by Status Passed Failed Total 158 83 241 Inspections by Project Type Project Type Active Inactive Incomplete Archived Closed Auto-Activate Complete Total Comm 3 0 0 0 0 0 0 3 Municipal 167 0 0 0 0 0 31 198 Utility 40 0 0 0 0 0 0 40 Total:210 0 0 0 0 0 31 241 Project: Mill on Main Type: Comm | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition Mill on Main 2025-03-06 Entrance Protection Ineffective Mill on Main 2025-03-06 Inlet Protection Not Applied Mill on Main 2025-03-27 Inlet Protection Not Applied Project: 23-16 Rural II Detention Basin Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 23-16 Rural II Detention Basin 2025-04-10 Site Photo Ineffective Project: 24-15 E. 5th Ave, E. 7th Ave, Iowa St & Michigan St Reconstruction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition Page 1 of 7 24-15 E. 5th Ave, E. 7th Ave, Iowa St & Michigan St 2025-05-02 Seeding - Permanent Ineffective Project: 25-07 W. 15th Avenue Reconstruction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-07 W. 15th Avenue Reconstruction 2025-05-02 Inlet Protection - Type D HR/M -Not Applied 25-07 W. 15th Avenue Reconstruction 2025-05-09 Inlet Protection - Type D HR/M -Not Applied 25-07 W. 15th Avenue Reconstruction 2025-05-16 Inlet Protection - Type D HR/M -Not Applied Project: 25-09 Michigan St & 11th Ave Reconstruction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-09 Michigan St & 11th Ave Reconstruction 2025-09-05 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-09-15 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-09-23 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-09-30 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-10-09 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-10-16 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-10-20 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-10-29 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-11-06 Inlet Protection - Type D HR/M -Not Applied 25-09 Michigan St & 11th Ave Reconstruction 2025-11-25 Inlet Protection - Type D HR/M -Not Applied Project: 25-05 Waugoo Ave Reconstruction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-05 Waugoo Ave Reconstruction 2025-08-07 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-08-11 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-08-28 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-09-05 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-09-15 Inlet Protection - Type D HR/M -Not Applied Page 2 of 7 25-05 Waugoo Ave Reconstruction 2025-09-23 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-10-09 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-10-16 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-10-20 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-10-29 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-11-05 Inlet Protection - Type D HR/M -Not Applied 25-05 Waugoo Ave Reconstruction 2025-11-25 Inlet Protection - Type D HR/M -Not Applied Project: 25-08 Central Street Reconstruction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-08 Central Street Reconstruction 2025-06-20 Inlet Protection - Type D HR/M -Not Applied 25-08 Central Street Reconstruction 2025-06-27 Inlet Protection - Type D HR/M -Not Applied 25-08 Central Street Reconstruction 2025-10-20 Inlet Protection - Type D HR/M -Not Applied 25-08 Central Street Reconstruction 2025-10-29 Inlet Protection - Type D HR/M -Not Applied Project: 25-06 Sidewalk Rehabilitation Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-06 Sidewalk Rehabilitation 2025-06-19 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-06-20 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-06-27 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-07-10 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-07-24 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-07-30 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-08-07 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-08-11 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-08-19 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-08-28 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-09-05 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-09-15 Inlet Protection - Type D HR/M -Not Applied Page 3 of 7 25-06 Sidewalk Rehabilitation 2025-09-23 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-09-30 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-10-09 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-10-16 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-10-20 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-10-29 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-11-05 Inlet Protection - Type D HR/M -Not Applied 25-06 Sidewalk Rehabilitation 2025-11-13 Inlet Protection - Type D HR/M -Not Applied Project: 25-04 Bay St & Bay Shore Dr Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-04 Bay St & Bay Shore Dr 2025-08-07 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-08-11 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-08-19 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-08-28 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-09-05 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-10-20 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-10-29 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-11-05 Inlet Protection - Type D HR/M -Not Applied 25-04 Bay St & Bay Shore Dr 2025-11-13 Inlet Protection - Type D HR/M -Not Applied Project: 25-02 Nebraska Street Sanitary Interceptor Construction Type: Utility | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-02 Nebraska Street Sanitary Interceptor Construction 2025-11-13 Inlet Protection - Type D HR/M -Not Applied Project: 25-14 Parking Lots Construction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-14 Parking Lots Construction 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-14 Parking Lots Construction 2025-09-15 Inlet Protection - Type D HR/M -Not Applied Page 4 of 7 Project: 25-12 Water Main Replacement Type: Utility | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-12 Water Main Replacement 2025-08-07 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-08-11 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-08-19 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-08-28 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-09-05 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-10-20 Inlet Protection - Type D HR/M -Not Applied 25-12 Water Main Replacement 2025-11-13 Inlet Protection - Type D HR/M -Not Applied Project: 25-15 Siewert Trail Reconstruction Type: Municipal | Group: N/A Project Name Inspection Date Failed BMP Name BMP Condition 25-15 Siewert Trail Reconstruction 2025-09-11 Inlet Protection - Type D HR/M -Not Applied 25-15 Siewert Trail Reconstruction 2025-09-15 Inlet Protection - Type D HR/M -Not Applied 25-15 Siewert Trail Reconstruction 2025-09-23 Inlet Protection - Type D HR/M -Not Applied 25-15 Siewert Trail Reconstruction 2025-09-30 Inlet Protection - Type D HR/M -Not Applied 25-15 Siewert Trail Reconstruction 2025-10-09 Inlet Protection - Type D HR/M -Not Applied 25-15 Siewert Trail Reconstruction 2025-11-13 Inlet Protection - Type D HR/M -Not Applied Inspector: Casey Canady Inspector's Organization: City of Oshkosh, WI Project Name Permittee Group Project Type Passed Failed Total 24-07 Cherry St & Prospect Ave Reconstruction Dorner, Inc.N/A Municipal 1 0 1 24-15 E. 5th Ave, E. 7th Ave, Iowa St & Michigan St Advance Construction, Inc.N/A Municipal 0 1 1 25-04 Bay St & Bay Shore Dr CARL BOWERS CONSTRUCTION N/A Municipal 0 1 1 25-05 Waugoo Ave Reconstruction Advance Construction, Inc.N/A Municipal 0 1 1 25-06 Sidewalk Rehabilitation Jim Fischer, Inc.N/A Municipal 0 2 2 25-07 W. 15th Avenue Reconstruction CARL BOWERS CONSTRUCTION N/A Municipal 1 1 2 Page 5 of 7 25-08 Central Street Reconstruction Dorner, Inc.N/A Municipal 1 0 1 25-09 Michigan St & 11th Ave Reconstruction Advance Construction, Inc.N/A Municipal 3 3 6 25-12 Water Main Replacement David Tenor Corporation N/A Utility 1 1 2 Mill on Main Stevens Construction Corp.N/A Comm 0 2 2 Total:7 12 19 Inspector: Ryan Ruff Inspector's Organization: Strand Associates, Inc. Project Name Permittee Group Project Type Passed Failed Total 23-16 Rural II Detention Basin PTS Contractors, Inc.N/A Municipal 2 1 3 Total:2 1 3 Inspector: Brittney Meyer Inspector's Organization: City of Oshkosh, WI Project Name Permittee Group Project Type Passed Failed Total 24-07 Cherry St & Prospect Ave Reconstruction Dorner, Inc.N/A Municipal 16 0 16 24-15 E. 5th Ave, E. 7th Ave, Iowa St & Michigan St Advance Construction, Inc.N/A Municipal 13 0 13 25-02 Nebraska Street Sanitary Interceptor Construction Advance Construction, Inc.N/A Utility 12 1 13 25-03 Washington School Redevelopment Vinton Construction Co.N/A Comm 1 0 1 25-04 Bay St & Bay Shore Dr CARL BOWERS CONSTRUCTION N/A Municipal 9 8 17 25-05 Waugoo Ave Reconstruction Advance Construction, Inc.N/A Municipal 11 11 22 25-06 Sidewalk Rehabilitation Jim Fischer, Inc.N/A Municipal 2 18 20 25-07 W. 15th Avenue Reconstruction CARL BOWERS CONSTRUCTION N/A Municipal 22 2 24 25-08 Central Street Reconstruction Dorner, Inc.N/A Municipal 18 4 22 25-09 Michigan St & 11th Ave Reconstruction Advance Construction, Inc.N/A Municipal 12 7 19 25-12 Water Main Replacement David Tenor Corporation N/A Utility 11 7 18 25-14 Parking Lots Construction Vinton Construction Co.N/A Municipal 8 2 10 25-15 Siewert Trail Reconstruction Vinton Construction Co.N/A Municipal 4 6 10 25-20 Storm Sewer Laterals / Various Locations Calnin and Goss, Inc N/A Utility 5 0 5 Total:144 66 210 Page 6 of 7 Inspector: Derek Rademacher Inspector's Organization: City of Oshkosh, WI Project Name Permittee Group Project Type Passed Failed Total 25-02 Nebraska Street Sanitary Interceptor Construction Advance Construction, Inc.N/A Utility 1 0 1 25-04 Bay St & Bay Shore Dr CARL BOWERS CONSTRUCTION N/A Municipal 0 1 1 25-05 Waugoo Ave Reconstruction Advance Construction, Inc.N/A Municipal 0 1 1 25-06 Sidewalk Rehabilitation Jim Fischer, Inc.N/A Municipal 0 1 1 25-08 Central Street Reconstruction Dorner, Inc.N/A Municipal 1 0 1 25-09 Michigan St & 11th Ave Reconstruction Advance Construction, Inc.N/A Municipal 0 1 1 25-12 Water Main Replacement David Tenor Corporation N/A Utility 1 0 1 25-14 Parking Lots Construction Vinton Construction Co.N/A Municipal 1 0 1 25-15 Siewert Trail Reconstruction Vinton Construction Co.N/A Municipal 1 0 1 Total:5 4 9 Page 7 of 7 Date 02/06/2025 20240388 - Easement - Legal Documents alyssad 02/06/2025 20240388 - Easement - Legal Documents caseyc 02/05/2025 20240067 - Bowen/Murdock Apartments - caseyc 0.50 02/05/2025 20250004 - Farmington Estates Subdivision caseyc 0.25 02/05/2025 20220109 - 2854 Fond Du Lac Rd parking caseyc 0.25 02/05/2025 20240395 - Washington School caseyc 0.25 02/05/2025 20230478 - Driveway Repair/Improvements - caseyc 0.25 02/05/2025 20250028 - Sierra - Commercial Site Plan caseyc 0.25 01/31/2025 20250024 - W. 10th Ave. Off-site Parking caseyc 0.25 01/31/2025 20240412 - Coffee Trailer - Planning caseyc 0.25 01/29/2025 20250019 - FASTENAL PARKING LOT caseyc 0.25 01/31/2025 20180325 - 913 S Main St - Apartments - caseyc 0.25 01/22/2025 20220479 - Lake Butte des Morts caseyc 2.00 01/22/2025 20250021 - Commercial Building Permit for caseyc 0.25 01/22/2025 20250019 - FASTENAL PARKING LOT caseyc 0.50 01/22/2025 20240395 - Washington School caseyc 0.25 01/16/2025 20250011 - 582 N Main St - Commercial & caseyc 0.25 01/16/2025 20250006 - St. Jude the Apostle Parish caseyc 0.25 01/10/2025 20230412 - Hickey Roofing caseyc 0.50 01/16/2025 20250012 - Country Park Apartments caseyc 1.00 01/08/2025 20240391 - Encroachment - Legal jaked 01/08/2025 20240391 - Encroachment - Legal jaked 01/08/2025 20240390 - Encroachment - Legal caseyc 01/08/2025 20240391 - Encroachment - Legal jaked 01/08/2025 20240390 - Encroachment - Legal jaked 01/08/2025 20240390 - Encroachment - Legal jaked 01/08/2025 20240389 - Encroachment - Legal jaked 01/08/2025 20240389 - Encroachment - Legal jaked 01/06/2025 20240229 - Merrill School Site Athletic Fields caseyc 0.50 01/08/2025 20240389 - Encroachment - Legal jaked 01/06/2025 20240229 - Merrill School Site Athletic Fields caseyc 0.25 01/06/2025 20240436 - Summerset Parking caseyc 0.50 01/06/2025 20240365 - Clearwells - Commercial Site caseyc 1.00 01/06/2025 20240443 - The Hangar Outdoor Seating caseyc 0.25 0.50 01/06/2025 20230445 - 204 Waugoo Parking Lot & CSM caseyc 0.25 01/06/2025 20240398 - Davita Oshkosh West Dialysis - caseyc 0.25 01/06/2025 20240332 - Easement - Legal Documents jaked 01/06/2025 20240395 - Washington School caseyc Public Works--Stormwater Project/Stage Reviewer Time (hrs) 01/06/2025 20240388 - Easement - Legal Documents jaked 04/09/2025 20200114 - Sunnyview expo improvements - caseyc 0.50 04/15/2025 20250109 - Commercial Building Permit for caseyc 0.25 04/09/2025 20250099 - Plumbing Permit for 525 W 20th caseyc 0.25 04/09/2025 20250104 - EAA-Knapp Street Tent Pad - caseyc 0.25 04/01/2025 20160321 - Waite Rug Place - Planning caseyc 0.25 04/09/2025 20240436 - Summerset Parking caseyc 0.25 0.50 03/26/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 03/27/2025 20250075 - Encroachment - Legal alyssad 03/25/2025 20250075 - Encroachment - Legal alyssad 03/26/2025 20250084 - Commercial Building Permit for caseyc 03/24/2025 20250048 - Felix Air Hangar - Commercial caseyc 0.25 03/24/2025 20240392 - 7 BREW REDEVELOPMENT caseyc 0.25 03/18/2025 20250031 - Accept Easement - Fernau caseyc 0.25 03/24/2025 20250056 - Commercial Building Permit for caseyc 0.25 03/17/2025 20250074 - Commercial Building Permit for caseyc 0.25 03/17/2025 20220009 - 100 Block W 6th Ave - 4 Plex - caseyc 0.25 03/13/2025 20250043 - Tommy's Express Drive-thru Car caseyc 0.25 03/13/2025 20250061 - Commercial Building Permit for caseyc 0.50 03/12/2025 20240392 - 7 BREW REDEVELOPMENT caseyc 0.25 03/12/2025 20210344 - Transit Center Improvements - caseyc 0.25 03/03/2025 20210525 - 600 Oregon St. parking caseyc 0.25 03/12/2025 20220479 - Lake Butte des Morts caseyc 0.50 02/26/2025 20240365 - Clearwells - Commercial Site caseyc 0.25 03/03/2025 20250056 - Commercial Building Permit for caseyc 0.50 02/26/2025 20250048 - Felix Air Hangar - Commercial caseyc 0.50 02/26/2025 20250053 - Commercial Building Permit for caseyc 0.25 02/17/2025 20240365 - Clearwells - Commercial Site caseyc 0.25 02/26/2025 20220458 - The Corridor N. Main St. & caseyc 0.25 02/17/2025 20240128 - Commercial Building Permit for caseyc 0.25 02/17/2025 20210525 - 600 Oregon St. parking caseyc 0.25 02/14/2025 20240383 - Encroachment - Legal caseyc 02/14/2025 20240383 - Encroachment - Legal caseyc 02/13/2025 20250006 - St. Jude the Apostle Parish caseyc 0.25 02/13/2025 20220240 - T-hangar buildings and taxi caseyc 0.25 02/13/2025 20240392 - 7 BREW REDEVELOPMENT caseyc 0.50 02/13/2025 20190231 - Outdoor Storage and caseyc 0.25 02/13/2025 20230291 - 2130 S WASHBURN STREET caseyc 0.25 02/13/2025 20200114 - Sunnyview expo improvements - caseyc 2.50 02/13/2025 20240067 - Bowen/Murdock Apartments - caseyc 0.50 02/13/2025 20240392 - 7 BREW REDEVELOPMENT caseyc 0.50 02/10/2025 20210344 - Transit Center Improvements - caseyc 0.50 02/10/2025 20240388 - Easement - Legal Documents caseyc 05/21/2025 20250131 - 3200 N. Main St. Outdoor caseyc 0.50 05/21/2025 20250118 - Monroe Equipment Building caseyc 0.50 05/20/2025 20250031 - Accept Easement - Fernau caseyc 0.25 05/20/2025 20250007 - Easement - temp cul de sac – caseyc 0.25 05/20/2025 20240266 - Easement - Legal Documents caseyc 0.25 05/20/2025 20240267 - Easement - Legal Documents caseyc 0.25 05/20/2025 20250124 - Commercial Building Permit for caseyc 0.25 05/20/2025 20240269 - Easement - Legal Documents caseyc 0.25 05/20/2025 20220479 - Lake Butte des Morts caseyc 0.25 05/20/2025 20250004 - Farmington Estates Subdivision caseyc 0.25 05/15/2025 20250160 - Land Acquisition - West end of caseyc 0.25 05/15/2025 20250148 - City Contract 25-15 Siewert Trail mikew 05/14/2025 20230291 - 2130 S WASHBURN STREET caseyc 0.50 05/15/2025 20250131 - 3200 N. Main St. Outdoor caseyc 0.50 2.00 05/14/2025 20250084 - Commercial Building Permit for caseyc 0.50 05/14/2025 20240226 - Village at Westhaven Parking caseyc 0.50 05/12/2025 20250132 - Encroachment - Legal caseyc 05/14/2025 20210344 - Transit Center Improvements - caseyc 05/12/2025 20240025 - Easement - Temp Basin - Legal caseyc 05/12/2025 20250008 - Easement – temp drainage - caseyc 05/07/2025 20250142 - Commercial Building Permit for caseyc 0.25 05/07/2025 20240278 - Commercial Building Permit for caseyc 0.25 05/07/2025 20180077 - 129 W. 17th Avenue Apartments caseyc 0.50 05/07/2025 20180077 - 129 W. 17th Avenue Apartments caseyc 0.50 05/02/2025 20220479 - Lake Butte des Morts caseyc 0.25 05/05/2025 20250130 - Public Museum Parking Lot mikew 4.00 0.25 05/01/2025 20250132 - Encroachment - Legal caseyc 05/01/2025 20250132 - Encroachment - Legal caseyc 04/30/2025 20240284 - 1705 Oshkosh Ave. alyssad 05/01/2025 20250132 - Encroachment - Legal caseyc 04/29/2025 20250132 - Encroachment - Legal caseyc 0.25 04/30/2025 20250118 - Monroe Equipment Building alyssad 04/23/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.50 04/28/2025 20250104 - EAA-Knapp Street Tent Pad - caseyc 0.25 04/16/2025 20190231 - Outdoor Storage and caseyc 0.50 04/22/2025 20250124 - Commercial Building Permit for caseyc 0.25 04/16/2025 20250016 - Commercial Building Permit for caseyc 0.50 04/16/2025 20180077 - 129 W. 17th Avenue Apartments caseyc 0.50 04/16/2025 20180077 - 129 W. 17th Avenue Apartments caseyc 0.50 04/16/2025 20250108 - United Rentals - Yard caseyc 1.00 04/15/2025 20240067 - Bowen/Murdock Apartments - caseyc 0.75 04/15/2025 20190231 - Outdoor Storage and caseyc 0.50 0.25 06/30/2025 20250083 - Trinity Episcopal School Building caseyc 0.25 06/30/2025 20210525 - 600 Oregon St. parking caseyc 0.25 06/26/2025 20250075 - Encroachment - Legal alyssad 06/30/2025 20250230 - New Dumpster Enclosure - Two caseyc 06/24/2025 20240345 - Easement - Overland caseyc 0.25 06/26/2025 20210344 - Transit Center Improvements - caseyc 0.50 06/24/2025 20230131 - 1710 Oshkosh Avenue Sports brittneym 0.25 06/24/2025 20250042 - 2nd Addition to Island View caseyc 1.00 06/23/2025 20200114 - Sunnyview expo improvements - caseyc 0.25 06/23/2025 20250188 - FedEx Parking & Stormwater caseyc 0.50 06/17/2025 20190231 - Outdoor Storage and caseyc 0.25 06/23/2025 20250009 - Easement – public utility - Legal caseyc 06/17/2025 20210344 - Transit Center Improvements - caseyc 0.50 06/17/2025 20250187 - Commercial Building Permit for caseyc 0.25 06/17/2025 20250128 - 90 Wisconsin St. Drive-thru caseyc 0.25 06/17/2025 20250046 - 5th Addition to Casey's Meadow caseyc 1.00 06/16/2025 20250148 - City Contract 25-15 Siewert Trail mikew 3.00 06/17/2025 20250185 - Commercial Building Permit for brittneym 0.25 06/11/2025 20250187 - Commercial Building Permit for caseyc 0.25 06/11/2025 20250188 - FedEx Parking & Stormwater caseyc 1.50 06/11/2025 20250045 - OASD - Jefferson Elementary caseyc 0.25 06/11/2025 20250045 - OASD - Jefferson Elementary caseyc 0.25 06/11/2025 20250118 - Monroe Equipment Building caseyc 0.25 06/11/2025 20250201 - Commercial Building Permit for caseyc 0.25 06/11/2025 20230003 - Commercial Building Permit for caseyc 0.25 06/11/2025 20250083 - Trinity Episcopal School Building caseyc 0.25 06/09/2025 20210525 - 600 Oregon St. parking caseyc 0.25 06/11/2025 20240428 - Pangaea Development - alyssad 06/05/2025 20220479 - Lake Butte des Morts caseyc 0.25 06/09/2025 20240339 - Homes of Havenwood Village IV caseyc 0.25 06/03/2025 20250190 - Commercial Building Permit for caseyc 0.25 06/03/2025 20250131 - 3200 N. Main St. Outdoor caseyc 0.25 06/03/2025 20250187 - Commercial Building Permit for caseyc 0.25 06/03/2025 20250189 - Commercial Building Permit for caseyc 0.25 06/03/2025 20250185 - Commercial Building Permit for brittneym 0.25 06/03/2025 20240411 - Commercial Building Permit for caseyc 0.25 05/28/2025 20250154 - Advocap Childcare Incubator caseyc 2.00 05/29/2025 20250154 - Advocap Childcare Incubator brittneym 1.00 05/28/2025 20250061 - Commercial Building Permit for caseyc 0.25 05/28/2025 20240246 - Lakeside Marina Parking lot and caseyc 0.25 05/28/2025 20250130 - Public Museum Parking Lot mikew 2.00 05/28/2025 20190231 - Outdoor Storage and caseyc 0.25 0.25 08/12/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 08/12/2025 20230132 - 608 Jefferson St. - entrance caseyc 0.25 08/04/2025 20250157 - Storm water Agreement - Legal caseyc 08/05/2025 20190231 - Outdoor Storage and caseyc 08/04/2025 20250268 - Oshkosh Community YMCA brittneym 08/04/2025 20250157 - Storm water Agreement - Legal caseyc 0.25 08/04/2025 20210344 - Transit Center Improvements - caseyc 0.25 08/04/2025 20240230 - Mount Vernon St. Townhomes - caseyc 0.50 08/04/2025 20250230 - New Dumpster Enclosure - Two brittneym 08/04/2025 20190231 - Outdoor Storage and caseyc 07/31/2025 20250247 - Millwork Distributors Expansion brittneym 1.00 07/31/2025 20250043 - Tommy's Express Drive-thru Car brittneym 1.00 07/30/2025 20250247 - Millwork Distributors Expansion caseyc 1.50 07/30/2025 20250043 - Tommy's Express Drive-thru Car caseyc 1.50 07/24/2025 20230136 - Pioneer Island Sometimes Bar caseyc 0.50 07/30/2025 20250108 - United Rentals - Yard caseyc 0.50 07/21/2025 20250130 - Public Museum Parking Lot mikew 2.00 07/23/2025 20240428 - Pangaea Development - alyssad 07/21/2025 20250226 - Commercial Building Permit for brittneym 0.25 07/21/2025 20250255 - Commercial Building Permit for caseyc 0.25 07/18/2025 20240230 - Mount Vernon St. Townhomes - caseyc 1.00 07/18/2025 20250157 - Storm water Agreement - Legal caseyc 0.50 0.25 07/17/2025 20250226 - Commercial Building Permit for brittneym 0.25 07/17/2025 20250148 - City Contract 25-15 Siewert Trail mikew 4.00 07/14/2025 20240161 - Encroachment - Legal caseyc 07/15/2025 20240411 - Commercial Building Permit for caseyc 07/14/2025 20220345 - Encroachment - Legal caseyc 07/14/2025 20230127 - Encroachment - Legal caseyc 07/14/2025 20250158 - Easement - Stormwater - Ponds caseyc 0.25 07/14/2025 20250199 - Easement – Storm Water Pond caseyc 0.25 07/10/2025 20250154 - Advocap Childcare Incubator brittneym 0.50 07/14/2025 20250152 - Ripon Ln. Auto Repair Shop - justing 07/07/2025 20240067 - Bowen/Murdock Apartments - caseyc 0.25 07/10/2025 20250154 - Advocap Childcare Incubator caseyc 0.50 07/07/2025 20250131 - 3200 N. Main St. Outdoor caseyc 0.25 07/07/2025 20250229 - Commercial Building Permit for caseyc 0.25 07/03/2025 20250226 - Commercial Building Permit for brittneym 0.50 07/07/2025 20250238 - Commercial Building Permit for brittneym 0.25 06/30/2025 20240067 - Bowen/Murdock Apartments - caseyc 0.50 07/01/2025 20250229 - Commercial Building Permit for caseyc 0.50 06/30/2025 20250128 - 90 Wisconsin St. Drive-thru caseyc 0.25 06/30/2025 20250227 - Patrician Village Driveway brittneym 0.25 10/01/2025 20250043 - Tommy's Express Drive-thru Car caseyc 0.50 10/01/2025 20250011 - 582 N Main St - Commercial & caseyc 0.25 09/29/2025 20250208 - Leeco Rail Spur Addition and brittneym 1.00 09/29/2025 20230479 - Valley Christian New School caseyc 0.25 09/26/2025 20250276 - 2-Lot CSM - Lot Reconfiguration caseyc 0.25 09/29/2025 20210344 - Transit Center Improvements - caseyc 0.25 09/23/2025 20250292 - Commercial Building Permit for brittneym 0.25 09/24/2025 20240325 - Commercial Building Permit for caseyc 1.00 09/18/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 09/23/2025 20250293 - Commercial Building Permit for brittneym 0.25 09/18/2025 20240230 - Mount Vernon St. Townhomes - caseyc 0.50 09/18/2025 20250059 - Pickart Park Master Plan - caseyc 0.25 09/17/2025 20250255 - Commercial Building Permit for caseyc 0.50 09/18/2025 20250289 - Privilege in Street Agreement– alyssad 1.00 09/17/2025 20250059 - Pickart Park Master Plan - caseyc 0.50 09/17/2025 20250308 - Kelly's Parking Lot caseyc 0.25 09/03/2025 20250282 - Encroachment - Legal caseyc 09/08/2025 20210364 - Mercy Medical Center Mill and caseyc 09/03/2025 20250292 - Commercial Building Permit for brittneym 0.50 09/03/2025 20250293 - Commercial Building Permit for brittneym 0.50 09/03/2025 20250084 - Commercial Building Permit for caseyc 0.50 09/03/2025 20250059 - Pickart Park Master Plan - brittneym 0.50 09/02/2025 20250281 - Encroachment - Legal caseyc 09/02/2025 20250281 - Encroachment - Legal caseyc 08/28/2025 20250282 - Encroachment - Legal caseyc 09/02/2025 20250281 - Encroachment - Legal caseyc 08/26/2025 20230132 - 608 Jefferson St. - entrance caseyc 0.25 08/28/2025 20250282 - Encroachment - Legal caseyc 08/21/2025 20250276 - 2-Lot CSM - Lot Reconfiguration caseyc 0.25 08/26/2025 20250282 - Encroachment - Legal caseyc 0.25 08/21/2025 20250280 - New Woodshop Building - brittneym 0.25 08/21/2025 20250043 - Tommy's Express Drive-thru Car brittneym 0.50 08/20/2025 20250268 - Oshkosh Community YMCA brittneym 0.25 08/20/2025 20250247 - Millwork Distributors Expansion brittneym 0.50 08/18/2025 20250287 - Commercial Building Permit for caseyc 0.25 08/18/2025 20200114 - Sunnyview expo improvements - caseyc 0.25 0.25 08/18/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.50 08/18/2025 20210344 - Transit Center Improvements - caseyc 0.25 08/14/2025 20250157 - Storm water Agreement - Legal caseyc 08/15/2025 20250281 - Encroachment - Legal caseyc 08/12/2025 20200059 - Hydrite Chemical Rail Yard - - caseyc 0.25 08/14/2025 20250157 - Storm water Agreement - Legal caseyc 12/05/2025 20250339 - HOUSING AUTHORITY caseyc 0.25 12/08/2025 20230479 - Valley Christian New School alyssad 12/04/2025 20250375 - Easement - Legal Documents alyssad 12/05/2025 20250344 - Franklin Elementary School alyssad 12/03/2025 20250339 - HOUSING AUTHORITY caseyc 0.25 12/04/2025 20250375 - Easement - Legal Documents alyssad 11/24/2025 20250376 - O&M Agreement - Legal alyssad 12/03/2025 20250297 - 3031 Oregon St. - Lincoln alyssad 11/18/2025 20240156 - W 20th Ave Mult-family Oshkosh caseyc 0.25 11/18/2025 20250339 - HOUSING AUTHORITY caseyc 0.50 11/12/2025 20250208 - Leeco Rail Spur Addition and brittneym 0.50 11/17/2025 20250369 - Easements – 5th Addition to caseyc 0.25 11/12/2025 20240325 - Commercial Building Permit for caseyc 0.25 11/12/2025 20250366 - Easement – Declaration – caseyc 0.50 11/12/2025 20230104 - Lycon Facility - Commercial Site brittneym 0.25 11/12/2025 20250011 - 582 N Main St - Commercial & caseyc 0.50 11/04/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 11/04/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 11/04/2025 20230104 - Lycon Facility - Commercial Site brittneym 0.50 11/04/2025 20250356 - Commercial Building Permit for caseyc 0.25 10/29/2025 20220049 - Mill on Main T Wall - Planning alyssad 10/29/2025 20250332 - Oshkosh WWTP Tertiary alyssad 10/21/2025 20250208 - Leeco Rail Spur Addition and brittneym 0.50 10/24/2025 20250327 - Proposed Aircraft Hangar - caseyc 10/20/2025 20240230 - Mount Vernon St. Townhomes - caseyc 0.25 10/20/2025 20250154 - Advocap Childcare Incubator caseyc 0.50 10/20/2025 20250043 - Tommy's Express Drive-thru Car caseyc 0.50 10/20/2025 20230412 - Hickey Roofing caseyc 0.25 10/20/2025 20250338 - Commercial Building Permit for brittneym 0.25 10/20/2025 20250329 - 2-Lot CSM - Land Division - caseyc 0.25 10/15/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 10/20/2025 20240325 - Commercial Building Permit for caseyc 0.50 10/15/2025 20250327 - Proposed Aircraft Hangar - caseyc 0.50 10/15/2025 20250247 - Millwork Distributors Expansion caseyc 0.25 10/08/2025 20250324 - 460 Marion Road Cell Tower caseyc 0.25 10/10/2025 20250046 - 5th Addition to Casey's Meadow caseyc 10/08/2025 20250247 - Millwork Distributors Expansion caseyc 1.00 10/08/2025 20230412 - Hickey Roofing caseyc 0.25 10/01/2025 20250316 - Commercial Building Permit for caseyc 0.25 10/08/2025 20250046 - 5th Addition to Casey's Meadow caseyc 0.25 10/01/2025 20250312 - WINNEBAGO ORAL SURGERY caseyc 0.25 10/01/2025 20250084 - Commercial Building Permit for caseyc 0.25 297No Reviews: Total Hours:113.75 12/23/2025 20250376 - O&M Agreement - Legal alyssad 12/23/2025 20250376 - O&M Agreement - Legal alyssad 12/17/2025 20250329 - 2-Lot CSM - Land Division - caseyc 0.25 12/17/2025 20250332 - Oshkosh WWTP Tertiary caseyc 2.00 12/11/2025 20250344 - Franklin Elementary School caseyc 2.00 12/17/2025 20250220 - Carl Traeger Site Updates - brittneym i:\engineering\storm water information\ms4 permit items\dnr submittals\2025 annual report\attachments\need updating\2025 supplemental information.docx CITY OF OSHKOSH 2025 ANNUAL STORM WATER REPORT SUPPLEMENTAL INFORMATION Minimum Control Measures – Section 1: Public Education and Outreach Topic: Management of materials that may cause storm water pollution from automobiles, pet waste, household hazardous waste, and household practices. • Each spring, the city mails out reminders, see attachments, in every utility billing reminding residents that they are subject to fines if they blow grass clippings into the street. In 2025, six violation letters were sent out. The city was made aware of most violations by residents notifying the city of violations. • Winnebago County provided free hazardous material disposal to in-county resident’s farms and households. A brochure on the County’s website has specific information about the program. Hazardous materials are also accepted from County businesses identified as very small quantity generators during these collection events. Disposal fees do apply for business materials, but eligible businesses may receive a 50% subsidy for disposal of pesticide wastes. Topic: Infiltration of residential storm water runoff from rooftop downspouts, driveways, and sidewalks. • The City has a credit policy that residential and commercial property owners may reduce their storm water utility fee by installing BMP’s. The details of this program are available on the City’s Storm Water Utility webpage: (https://www.ci.oshkosh.wi.us/StormWaterUtility). Qualifying BMP’s include rain barrels, rain gardens, as well as bio-swales and storm basins. In 2025, the City received and approved 3 residential and 1 commercial reductions in their storm water utility fee. Topic: Inform and where appropriate educate those responsible for the design, installation, and maintenance of construction site erosion control practices and storm water management facilities on how to design, install, and maintain the practices. • City staff utilizes the site plan review process to educate developers and design engineers on the performance criteria of all storm water management facilities. This is often done in face to face review sessions but is also communicated through phone calls and emails. The City reviewed approximately 143 new commercial site plans in 2025. Once approved developers/owners are required to enter into an Operation and Maintenance Agreement with the city that is on file with the County Register of Deeds. In 2025 the city entered into 4 commercial Operation and Maintenance agreements (2 are signed and 2 are awaiting final approval and signatures). i:\engineering\storm water information\ms4 permit items\dnr submittals\2025 annual report\attachments\need updating\2025 supplemental information.docx • The City of Oshkosh staff holds Ground Control training sessions for every unique contractor that works on a City Engineering Division bid contract. Minimum Control Measures – Section 2: Public Involvement Topic: Storm Water Management Plans and/or updates. • The City annually updates its Storm Water Utility brochure, See Attachment, which describes the progress that has been made in the management of the storm water in the community. • The latest update of the City’s Storm Water Management Plan occurred at the end of 2022. Information on the progress made in implementing the current plan is posted on the City’s website. Topic: Storm Water Related Ordinances and/or Updates. • The City continually reviews City Ordinances and identifies language that may be added or modified to encourage the use of green infrastructure. Topic: Volunteer Opportunities. • The City of Oshkosh is a member of NEWSC. • The City partnered with the Fox-Wolf Watershed Alliance in an Earth Day water shed clean-up project. Volunteers cleaned-up the shorelines and tributary shorelines of the Fox River, Lake Winnebago and Lake Butte Des Morts. Minimum Control Measures – Section 3: Illicit Discharges. May 1, 2025: City staff were made aware of a chemical spill at a commercial site in the City. The chemical spill was reported to the WI DNR. The DNR provided insight on how to clean up the spill and the City was notified. The issue was resolved. May 7, 2025: City staff received a call that there was an abundance of cigarette butts being left in the terraces at the property of 455 Marion Road. The City sent a letter to the property owner to have the issue cleaned up. The issue was resolved. May 7, 2025 to September 7, 2025: City staff received multiple calls regarding grass clippings being blown and/or left on the roadway at six different properties. The City sent a letter to each of the six property owners to have the issue cleaned up. The issues were resolved. i:\engineering\storm water information\ms4 permit items\dnr submittals\2025 annual report\attachments\need updating\2025 supplemental information.docx December 19, 2025 City staff were made aware of snow being plowed into a City-owned storm water pond. The City sent a letter to the property owner adjacent to the storm water pond as the snow looked to originate from their parking lot/drive lane. The issue was resolved. Minimum Control Measures – Section 4: Construction Site Pollutant Control The goal of the City’s Construction Erosion Control Program is compliance. Any contractor working for the City or will be working for a private utility company (gas or electric) and all City inspectors and engineers are required to attend a ground control workshop where the City’s erosion control inspector emphasizes the importance that the City places on compliance. Contractors who are found to have substandard erosion control practices receive written warnings. The contractors then have 24 hours to correct the substandard condition. City contractors who have not corrected the deficiency are assessed liquidated damages. With these two programs in place the City has been very successful in achieving compliance. Minimum Control Measures – Section 5: Post Construction Storm Water Management. In 2023 the City approved 10 sites that had new structural storm water management practices installed. All approved development sites with BMP's are required to have an O&M agreement with the city. The O&M details the level of inspection that needs to be done during the year. We only require properties that receive a storm water utility credit based on BMP's to submit their inspection reports to the city annually (this accounted for 23 private inspections). Minimum Control Measures – Section 6: Pollution Prevention • All the City owned storm water management facilities are inspected on an annual basis. Work orders are issued to correct any deficiencies found. • A program to manage invasive and undesirable vegetation in and around storm basins was initiated in 2017 and continued in 2025. The goal is to treat invasive and undesirable vegetation in the storm water basins most recently constructed so that the native planting can get off to a good start. The goal for older basins is rehabilitation, herbiciding plants like cat tails, phragmities, and teasel to get them under control so more desirable vegetation can take hold. PREPARED BY: PREPARED FOR: City of Oshkosh IDDE Ongoing Screening Summary Report 2025 Inspection Year DECEMBER 1 6 , 202 5 IDDE Ongoing Screening Summary Report 2025 Inspection Year City of Oshkosh Prepared For: City of Oshkosh 215 Church Avenue Oshkosh, WI 54903 Prepared By: Westwood Infrastructure, Inc. 1 Systems Drive Appleton, WI 54914 (920) 735-6900 Project Number: R3000958.03 Date: December 16, 2025 December 12, 2025 1 2025 Ongoing Screening Summary Report City of Oshkosh INTRODUCTION Westwood Professional Services (Westwood) assisted the City of Oshkosh with screening the outfalls in the City’s municipal separate storm sewer system (MS4) for potential illicit discharges. To maintain compliance with their Wisconsin Pollutant Discharge Elimination System (WPDES) permit, 93 outfalls within the City’s jurisdiction were screened. Of the screened outfalls, 27 were major outfalls, 36 were minor outfalls, and 30 were supplemental outfalls. A map and list of the screened outfalls are included in Appendix A. The individual outfall field screening reports for the screened outfalls are contained in Appendix C. For a description of the City’s Illicit Discharge Field Screening Program, please refer to the Ongoing Field Screening Program – 2021 Update (March 2, 2021). The 2021 program contains a comprehensive description of the program, maps depicting the City’s outfalls, and information on how the program complies with the City’s WPDES permit from the Wisconsin Department of Natural Resources (WDNR). SUMMARY OF ILLICIT DISCHARGE PROGRAM’S MEASURABLE GOALS Results for the City’s 2025 Ongoing Field Screening Program are as follows. • 93 of 549 MS4 outfalls (17%) were screened, plus 33 upstream/alternate locations. • 46 outfalls were screened for the first time following an MS4 map update in 2025. • 79 outfalls were characterized as unlikely to have an illicit discharge. • 14 outfalls were characterized as a potential illicit discharge. • No outfalls were characterized as an obvious (confirmed) illicit discharge. • No confirmed illicit discharges were eliminated. The above results reflect the results of the routine outfall screening. Any actions resulting from complaints received by the City will need to be addressed in the corresponding sections of the MS4 Annual Report. OUTFALL INVENTORY As part of the Ongoing Field Screening Program, the City’s inventory of MS4 outfalls is reviewed annually and updated to reflect changes to the MS4, including new development, installation of stormwater management facilities, or street reconstruction. Prior to conducting the scheduled outfall screening, the City’s updated storm sewer mapping is reviewed to identify new, removed, or modified outfalls, and the screening schedule is updated accordingly. Similarly, if differences are identified during the screening process, those changes are made as they are encountered. For each new or modified outfall, a determination is made as to its major/minor status, as well as its priority outfall status. During the winter of 2024-2025, an extensive review of the MS4 map was conducted by Westwood. Based on updated storm sewer mapping provided by the City, several outfalls were removed due to reconstruction, and several new outfalls were identified and added to the screening program. Following the completion of the MW4 map update and the 2025 Ongoing December 12, 2025 2 2025 Ongoing Screening Summary Report City of Oshkosh Field Screening Program, the City’s outfall inventory has been revised and consists of the following: Major/Minor Classification No. of Outfalls Prioritization Classification No. of Outfalls Major Outfalls 97 Priority Outfalls 34 Minor Outfalls 292 Non-Priority Major Outfalls 84 Supplemental Outfalls 160 Non-Priority Non-Major Outfalls 431 Total 549 Total 549 ILLICIT DISCHARGE AND FLOW OBSERVATIONS Of the 93 outfalls that were screened in 2025, 14 outfalls had physical or chemical indicators suggesting a potential or obvious illicit discharge. Those outfalls are summarized in the table below: Outfall Date Flow pH Conductivity (µS/cm) Ammonia (ppm) Total Chlorine (ppm) Free Chlorine (ppm) Detergent (mg/L) Gross Solids Illicit Discharge Potential 01-520 8/5/2025 Submerged (not located) X Potential 01-520 US1 8/5/2025 Submerged, indeterminate 8.06 961 0 0 0 0 Potential 03-173 8/5/2025 Submerged (not located) X Potential 03-173 US1 8/5/2025 Submerged, indeterminate 9.14 345 0 0 0 0 Potential 03-22 8/5/2025 Submerged (not located) X Potential 03-22 US1 8/5/2025 Submerged, indeterminate 9.03 363 0 0 0 0 Potential 03-35 8/5/2025 Submerged (not located) X Potential 03-35 US1 8/5/2025 Submerged, indeterminate 8.98 419 0 0 0 0 Potential 03-81 8/5/2025 Submerged (not located) X Potential 03-81 US1 8/5/2025 Submerged, indeterminate 8.95 303 0 0 0 0 Potential 05-14 9/25/2025 Submerged (not located) X Potential 05-14 US1 9/25/2025 Submerged, indeterminate 8.05 373 0 0 0 0 Potential 11-376 8/5/2025 Submerged (not located) X Potential 11-376 US1 8/5/2025 Submerged, indeterminate 8.44 489 0 0 0 0 Potential 11-512 8/5/2025 Submerged (not located) X Potential December 12, 2025 3 2025 Ongoing Screening Summary Report City of Oshkosh Outfall Date Flow pH Conductivity (µS/cm) Ammonia (ppm) Total Chlorine (ppm) Free Chlorine (ppm) Detergent (mg/L) Gross Solids Illicit Discharge Potential 11-512 US1 8/5/2025 Submerged, indeterminate 8.12 387 0 0 0 0 Potential 12-576 9/25/2025 Submerged (not located) X Potential 12-576 US1 9/25/2025 Submerged, indeterminate 8.14 416 0 0 0 0 Potential 15-3373 9/17/2025 Submerged, indeterminate Potential 15-3373 US1 9/17/2025 Submerged, indeterminate 7.52 703 1 0 0 0.85 Potential 16-1178 9/25/2025 Submerged (not located) X Potential 16-1178 US1 9/25/2025 Submerged, indeterminate 7.75 472 0 0 0 0 Potential 16-844 9/25/2025 Trickle 8.49 2,890 0 0 0 0 Potential 16-941 9/17/2025 Submerged, indeterminate 9.20 470 0 0 0 0 Potential U-110530 8/5/2025 Submerged, indeterminate Potential U-110530 US1 8/5/2025 Submerged, indeterminate 9.08 357 0 0 0 0 Potential Bold entries indicate test results that exceed the action limit for the chemical. Italic entries indicate alternate sampling locations for an outfall. Shaded outfalls indicate outfalls with significant floatable gross solids. The outfalls with potential or obvious illicit discharges are summarized below: • Eight of the 14 outfalls with potential illicit discharges were classified as “Potential” solely due to the presence of moderate or substantial floatable debris (gross solids), including plastic bottles, foam packaging, and other solid waste. This effect was most pronounced at manholes upstream of a fully submerged outfall, where the storm sewer pipes within the manhole were also fully submerged. In these cases, any floatable debris traveling along the top of the storm sewer pipe will enter the manhole and will remain trapped on the surface of the manhole pool, as it is not able to escape through the submerged outfall pipe. All eight of these outfalls with only floating gross solids were already classified as Priority Outfalls, so they are already scheduled to be rescreened in 2026. • Outfalls with elevated pH: Four outfalls were classified as potential illicit discharges due to elevated pH levels in the collected samples. Based on the current version of the Ongoing Field Screening Program (2021), the acceptable pH range for stormwater samples is 6.5 to 9.0. Four samples had pH readings exceeding 9.0: December 12, 2025 4 2025 Ongoing Screening Summary Report City of Oshkosh Sample Location pH Receiving Water 03-22 US1* Nebraska Street 9.03 Fox River 03-173 US1* 16th Ave 9.14 Fox River 16-941 Westhaven Dr 9.20 Detention Basin U-110530 US1 Pioneer Dr (former) 9.08 Fox River *Manholes 03-22 US1 and 03-173 US1 also had significant floating gross solids, which is also a potential illicit discharge indicator. No other chemical indicator parameters were exceeded at any of these outfalls, and no apparent sources of illicit discharge were observed. All four outfalls were connected to receiving waters with significant levels of algae. It has been documented that algae blooms can significantly increase water’s pH because the algae consumes CO2 during photosynthesis, oftentimes scavenging it from the carbonic acid dissolved in the water, thereby raising the pH of the water (sometimes up to levels of 10 or 11). In the absence of other illicit discharge evidence, it was assumed that the ongoing algae blooms were the source of the increased pH, and no further investigation was conducted. Three of the four impacted outfalls were already classified as Priority Outfalls, so they are screened annually. The fourth (U-110530) was classified as a non-priority non-major outfall and will be added to the 2026 screening schedule. • Outfall 15-3373 (Comet Street) consists of a 27” reinforced concrete pipe (RCP) that discharges to the south side of a detention basin located north of Comet Street. This outfall had detergent concentrations of 0.25 mg/L and 0.9 mg/L during the 2023 and 2024 screenings, respectively. During the 9/17/2025 screening, the outfall was partially submerged, so a sample was collected from the submerged pool in the first upstream location (curb inlet). This sample had a detergent concentration of 0.85 mg/L and 1 mg/L ammonia. The next upstream location (another curb inlet) was dry, so no additional tracking could be conducted. Additional sampling was conducted on 9/25/2025, and the sample from Comet Street once again had detergent (0.6 mg/L) and ammonia (3 ppm), with no incoming flows. A sample was also collected one block west from the Geneva Street outfall – which is connected to the same detention basin – and there were no detections. The findings were forwarded to the City on 7/20/2025, with a recommendation that the City televise the storm sewer along Comet Street to search for any undocumented laterals or other potential sources of detergent-containing discharge. On 10/1/2025, the City reported that the televising revealed a potential lateral from 2328 Comet Street that may warrant additional dye testing by the City. This outfall is classified as a Priority Outfall, primarily due to the recurring detergent detections. As a result, the outfall is already scheduled to be rescreened in 2026. • Outfall 16-844 (Koeller Street) consists of an 18” RCP that discharges to the south side of the stream, immediately east of the Koeller Street bridge. This outfall has historically had elevated conductivity and/or detergent detections; however, repeated upstream tracking has never produced a conclusive source of the flow. During the 9/25/2025 December 12, 2025 5 2025 Ongoing Screening Summary Report City of Oshkosh screening, a sample collected from the outfall had a conductivity of 2,890 µS/cm, which exceeds the 2,000 µS/cm action level. Due to the history at the outfall, no additional tracking was conducted in 2025. The outfall is classified as a Priority Outfall, primarily due to the recurring high conductivity results and occasional detergent detections. As a result, the outfall is already scheduled to be rescreened in 2026. Maps of the drainage areas for the outfalls with potential or obvious illicit discharges are included in Appendix B, along with relevant correspondence with the City. INVESTIGATIONS OUTSIDE OF ONGOING SCREENING PROGRAM In addition to the outfall screening and tracking activities conducted as part of the 2025 ongoing screening program, Westwood assisted the City with the investigation and/or tracking of two additional potential illicit discharge issues during the 2025 calendar year: • Clark-Hill Farm Drain Tile Discharge (August 2025) The City excavated a new detention basin on the west side of Clairville Road, just north of Compass Way. During excavation, an existing drain tile line was cut. Flow from that drain tile accumulated in the excavated pond, and the pooled water had significant algae blooms on the surface. On August 6, Casey Canady from the City of Oshkosh requested that Westwood collect a sample of the discharge from the cut drain tile to determine if it was a potential illicit discharge or other cause of concern. Westwood collected a sample from the actively- flowing drain tile on August 7 and tested it for the standard IDDE screening parameters, along with nitrates, nitrites and phosphates. The results of the testing are summarized below: Analyte Result Temperature 68 °F pH 7.71 Conductivity 1290 µS/cm Free Chlorine 0 ppm Total Chlorine 0 ppm Detergent 0 mg/L Ammonia 0 ppm Copper 0 ppm Nitrate Nitrogen 2 ppm Nitrite Nitrogen 0 ppm Phosphate 5 ppm The test results are consistent with agricultural runoff. The results were forwarded to the City on August 7, and the City took the lead on any follow-up with the drain tile discharge. Outfall 16-1508 (N Westfield St / Red Arrow Park) (October 2025) Westwood’s assistance was requested by the City on October 9 following the discovery of a cloudy discharge into the stream downstream of outfall 16-1508. This Priority December 12, 2025 6 2025 Ongoing Screening Summary Report City of Oshkosh Outfall had recently been screened on September 25 as part of the 2025 ongoing screening program, with no potential illicit discharges detected. Westwood mobilized to begin an investigation on October 9. Upon arriving at the outfall, Westwood encountered City crews who had just located a watermain break in the area. The watermain break was discharging high-turbidity water into the storm sewer system, which was then discharging to the stream at outfall 16-1508. No additional illicit discharge investigation was conducted. Reports and documentation from each of these investigations were submitted to the City at the conclusion of each investigation. NON-ILLICIT DISCHARGE OBSERVATIONS The ongoing screening identified five outfalls with some degree of visible damage, 30 outfalls with deposition, three with downstream erosion, and two with nearby graffiti. While none of these posed an immediate danger, the City will likely want to address these issues as part of the regular storm sewer system maintenance. Appendix D contains lists, maps, and photos of outfalls with non-illicit discharge concerns. FUTURE FIELD SCREENING The general screening schedule approach is outlined in the Ongoing Field Screening Program – 2021 Update. The outfalls within the City’s jurisdiction that are deemed “priority” are to be screened every year and the major outfalls that are deemed “non-priority” are to be screened every five years. Non-priority, non-major outfalls are to be screened every ten years. A preliminary screening schedule was developed as part of the Ongoing Field Screening Program. This screening schedule is updated each year as outfalls are added, removed, or reclassified. In addition, any non-priority outfalls with potential illicit discharges are scheduled for a repeat screening in the following year. Any outfalls listed as “potential” or “obvious” illicit discharges during the 2025 screening year will be rescreened in 2026, regardless of their priority status. With the exception of outfall U-110284, all outfalls that were identified as “potential” or “obvious” illicit discharges in 2025 were priority outfalls, which would already be included in the 2026 screening. The one additional non-priority outfall has been added to the 2026 screening schedule. Based on the latest revisions, the proposed 2026 screening schedule includes 101 outfalls: • 34 Priority outfalls • 16 Non-priority major outfalls • 51 Non-priority non-major outfalls (including U-110284 rescreening) The updated screening schedule is included in Appendix A. The City of Oshkosh reserves the right to revise the screening schedule as long as the goals of the screening frequency are achieved. December 12, 2025 7 2025 Ongoing Screening Summary Report City of Oshkosh STANDARD OF CARE The conclusions presented in this report were arrived at using generally accepted engineering practices. The conclusions presented herein represent our professional opinions, based on data collected at the time of the inspections, at the specific inspection locations discussed in this report. Conditions at other locations in the City or at different times may be different than described in this report. The scope of this report is limited to the specific project and the inspection locations described herein. Prepared By: Jason Weis, P.E. Project Engineer Reviewed By: Brian D. Wayner, P.E. Environmental Service Leader Appendix A Outfall Information Outfall Inspection Map Outfall Screening Summary Table Potential and Obvious Illicit Discharge Map Outfall Screening Schedule ! ! !!!!! !!! !! !! ! !!! !!! ! ! ! !! !! ! ! ! ! !! ! ! ! !!! !!!!!!! ! ! ! !! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! !! ! ! ! ! ! ! ! ! !! !! ! ! ! 16-844 14-996 FernauPond 12-925 13-68 13-1283 13-109813-1174 16-1508 12-576 15-2243 02-357 11-512 05-14 13-471 11-376 03-119 06-810 11-17716-941 16-995 06-829 16-594 16-1178 12-569 03-173 13-1588 13-2736 13-1552 13-2563 12-2042 16-120516-1628 06-2947 03-604 03-477 05-670 15-3339 15-3373 06-3027 U-43661 U-44156U-43837 U-43543 U-43361 U-44238 U-44085 U-44119U-44117U-43858 U-43616U-43982 U-43347U-43456 U-44142U-44053 U-43845 U-43808 U-44189 U-43942 U-43603 U-44011 U-43975 U-43698 U-44101 U-43484 U-43800 U-43708 Screened Outfalls !Priority (32) !Non-priority Major (14) !Non-priority Non-major (47) F:\ENVIRO\IDDE\GIS\InspectedOutfalls_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.A-1 SCALE:1 " = 5,047 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN 2025 OUTFALL INSPECTION MAP.Date:11/26/2025 Printed: JCWeis 11/26/2025 1:30:17 PM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com 01-520 03-81 03-3503-22 06-5206-2296 09-107 U-44026U-43822U-44131 U-43887U-44005 U-112427U-112428U-110530 !!! ! ! !!!! ! U-110619U-110619w U-111659 U-43443 U-44109U-43703 U-44062 U-43406 U-43660 U-43713 Outfall Screening Summary Outfall ID Priority Class*Inspection Date Inspection Type Flow Description pH Conductivity (µS/cm) Ammonia (ppm) Total Chlorine (ppm) Free Chlorine (ppm) Detergent (mg/L) Illicit Discharge Potential sOutfallID sPriorityClass dtInspect sInspType iFlow_Desc dSamPH_fld dSamCond_Fld dSamAmm_fld dSamClTot_fld dSamClFr_fld dSamDet_lab sIDDEpot 01-520 P 8/5/2025 Ongoing Submerged (not located)Potential 01-520 US1 8/5/2025 Ongoing Submerged, indeterminate 8.06 961 0 0 0 0 Potential 02-357 P 8/5/2025 Ongoing Submerged (not located)Unlikely 02-357 US1 8/5/2025 Ongoing Submerged, indeterminate 8.47 399 0 0 0 0 Unlikely 03-119 P 8/5/2025 Ongoing Submerged (not located)Unlikely 03-119 US1 8/5/2025 Ongoing Submerged, indeterminate 8.29 340 0 0 0 0 Unlikely 03-173 P 8/5/2025 Ongoing Submerged (not located)Potential 03-173 US1 8/5/2025 Ongoing Submerged, indeterminate 9.14 345 0 0 0 0 Potential 03-22 P 8/5/2025 Ongoing Submerged (not located)Potential 03-22 US1 8/5/2025 Ongoing Submerged, indeterminate 9.03 363 0 0 0 0 Potential 03-35 P 8/5/2025 Ongoing Submerged (not located)Potential 03-35 US1 8/5/2025 Ongoing Submerged, indeterminate 8.98 419 0 0 0 0 Potential 03-477 P 8/5/2025 Ongoing Submerged, indeterminate Unlikely 03-477 US1 8/5/2025 Ongoing Submerged, indeterminate 8.97 301 0 0 0 0 Unlikely 03-604 P 8/5/2025 Ongoing Submerged (not located)Unlikely 03-604 US1 8/5/2025 Ongoing Submerged, indeterminate 8.31 238 0.5 0 0 0 Unlikely 03-81 P 8/5/2025 Ongoing Submerged (not located)Potential 03-81 US1 8/5/2025 Ongoing Submerged, indeterminate 8.95 303 0 0 0 0 Potential 05-14 P 9/25/2025 Ongoing Submerged (not located)Potential 05-14 US1 9/25/2025 Ongoing Submerged, indeterminate 8.05 373 0 0 0 0 Potential 05-670 NPM 9/25/2025 Ongoing Submerged, indeterminate 8.48 407 0 0 0 0 Unlikely 06-2296 NPM 8/5/2025 Ongoing Submerged, indeterminate Unlikely 06-2296 US1 8/5/2025 Ongoing Submerged, indeterminate 8.61 385 0 0 0 0 Unlikely 06-2947 NPNM 8/7/2025 Ongoing None Unlikely 06-3027 P 8/7/2025 Ongoing Submerged, significant flow 8.72 941 0 0 0 0 Unlikely 06-52 P 8/5/2025 Ongoing Submerged (not located)Unlikely 06-52 US1 8/5/2025 Ongoing Submerged, indeterminate 8.83 341 0 0 0 0 Unlikely 06-810 P 8/5/2025 Ongoing Submerged (not located)Unlikely 06-810 US1 8/5/2025 Ongoing Submerged, indeterminate 8.69 340 0 0 0 0 Unlikely 06-829 P 9/17/2025 Ongoing Submerged (not located)Unlikely 06-829 US1 9/17/2025 Ongoing Submerged, indeterminate 7.82 1,667 0 0 0 0 Unlikely 09-107 NPM 8/5/2025 Ongoing Submerged, indeterminate 8.88 919 0 0 0 0 Unlikely 11-177 P 8/5/2025 Ongoing Submerged (not located)Unlikely 11-177 US1 8/5/2025 Ongoing Submerged, indeterminate 8.53 381 0 0 0 0 Unlikely 11-376 P 8/5/2025 Ongoing Submerged (not located)Potential 11-376 US1 8/5/2025 Ongoing Submerged, indeterminate 8.44 489 0 0 0 0 Potential 11-512 P 8/5/2025 Ongoing Submerged (not located)Potential 11-512 US1 8/5/2025 Ongoing Submerged, indeterminate 8.12 387 0 0 0 0 Potential 12-2042 NPM 9/25/2025 Ongoing None Unlikely Page 1 of 4 Printed 12/8/2025 Outfall Screening Summary Outfall ID Priority Class*Inspection Date Inspection Type Flow Description pH Conductivity (µS/cm) Ammonia (ppm) Total Chlorine (ppm) Free Chlorine (ppm) Detergent (mg/L) Illicit Discharge Potential 12-569 P 9/25/2025 Ongoing Submerged (not located)Unlikely 12-569 US1 9/25/2025 Ongoing Submerged, indeterminate 7.98 466 0 0 0 0 Unlikely 12-576 P 9/25/2025 Ongoing Submerged (not located)Potential 12-576 US1 9/25/2025 Ongoing Submerged, indeterminate 8.14 416 0 0 0 0 Potential 12-925 NPM 9/25/2025 Ongoing Submerged, indeterminate 8.43 1,074 0 0 0 0 Unlikely 13-1098 P 8/7/2025 Ongoing Submerged, slight flow 7.59 1,483 0 0 0 0 Unlikely 13-1174 NPM 8/7/2025 Ongoing Submerged, indeterminate Unlikely 13-1174 US1 8/7/2025 Ongoing Submerged, indeterminate 8.54 1,880 0 0 0 0 Unlikely 13-1283 NPM 8/7/2025 Ongoing Submerged, indeterminate Unlikely 13-1283 US1 8/7/2025 Ongoing Submerged, slight flow 7.75 1,086 0 0 0 0 Unlikely 13-1552 NPM 8/7/2025 Ongoing None Unlikely 13-1588 P 8/7/2025 Ongoing Submerged, slight flow 7.54 755 0 0 0 0 Unlikely 13-2563 NPM 8/7/2025 Ongoing None Unlikely 13-2736 NPM 8/7/2025 Ongoing Submerged, indeterminate Unlikely 13-2736 US2 8/7/2025 Ongoing Submerged, indeterminate 8.73 960 0 0 0 0 Unlikely 13-471 P 9/25/2025 Ongoing Submerged, significant flow 8.46 507 0 0 0 0 Unlikely 13-68 NPM 8/7/2025 Ongoing None Unlikely 14-996 P 8/5/2025 Ongoing None Unlikely 14-996 US1 8/5/2025 Ongoing Submerged, indeterminate 8.20 868 0 0 0 0 Unlikely 15-2243 NPM 9/25/2025 Ongoing Submerged, indeterminate 7.74 1,231 0 0 0 0 Unlikely 15-3339 P 9/17/2025 Ongoing Submerged, slight flow 7.99 1,808 0 0 0 0 Unlikely 15-3373 P 9/17/2025 Ongoing Submerged, indeterminate Potential 15-3373 US1 9/17/2025 Ongoing Submerged, indeterminate 7.52 703 1 0 0 0.85 Potential 16-1178 P 9/25/2025 Ongoing Submerged (not located)Potential 16-1178 US1 9/25/2025 Ongoing Submerged, indeterminate 7.75 472 0 0 0 0 Potential 16-1205 P 9/17/2025 Ongoing Submerged, indeterminate 7.79 1,240 0 0 0 0 Unlikely 16-1508 NPM 9/25/2025 Ongoing Submerged, significant flow 8.36 893 0 0 0 0 Unlikely 16-1628 P 9/17/2025 Ongoing None Unlikely 16-594 P 9/25/2025 Ongoing Submerged (not located)Unlikely 16-594 US1 9/25/2025 Ongoing Submerged, indeterminate 8.16 389 0 0 0 0 Unlikely 16-844 P 9/25/2025 Ongoing Trickle 8.49 2,890 0 0 0 0 Unlikely 16-941 P 9/17/2025 Ongoing Submerged, indeterminate 9.20 470 0 0 0 0 Potential 16-995 P 9/17/2025 Ongoing Submerged, indeterminate Unlikely 16-995 US1 9/17/2025 Ongoing Submerged, indeterminate 7.08 151 0 0 0 0 Unlikely FernauPond NPM 9/25/2025 Ongoing None Unlikely U-110530 NPNM 8/5/2025 Ongoing Submerged, indeterminate Potential U-110530 US1 8/5/2025 Ongoing Submerged, indeterminate 9.08 357 0 0 0 0 Potential U-110619 NPNM 8/5/2025 Ongoing None Unlikely U-110619w NPNM 8/5/2025 Ongoing None Unlikely U-111659 NPNM 8/5/2025 Ongoing None Unlikely Page 2 of 4 Printed 12/8/2025 Outfall Screening Summary Outfall ID Priority Class*Inspection Date Inspection Type Flow Description pH Conductivity (µS/cm) Ammonia (ppm) Total Chlorine (ppm) Free Chlorine (ppm) Detergent (mg/L) Illicit Discharge Potential U-112427 NPNM 8/5/2025 Ongoing Submerged, indeterminate Unlikely U-112428 NPNM 8/5/2025 Ongoing Submerged, indeterminate Unlikely U-43347 NPNM 8/7/2025 Ongoing None Unlikely U-43361 NPNM 9/25/2025 Ongoing None Unlikely U-43406 NPNM 9/17/2025 Ongoing None Unlikely U-43443 NPNM 9/17/2025 Ongoing None Unlikely U-43456 NPNM 9/25/2025 Ongoing None Unlikely U-43484 NPNM 8/7/2025 Ongoing Trickle 8.64 989 0 0 0 0 Unlikely U-43543 NPNM 9/25/2025 Ongoing None Unlikely U-43603 NPNM 9/17/2025 Ongoing None Unlikely U-43616 NPNM 8/7/2025 Ongoing None Unlikely U-43660 NPNM 9/17/2025 Ongoing None Unlikely U-43661 NPNM 9/25/2025 Ongoing None Unlikely U-43698 NPNM 8/7/2025 Ongoing None Unlikely U-43703 NPNM 9/17/2025 Ongoing None Unlikely U-43708 NPNM 9/17/2025 Ongoing Submerged, indeterminate 7.91 1,328 0 0 0 0 Unlikely U-43713 NPNM 9/17/2025 Ongoing Submerged, no flow Unlikely U-43800 NPNM 8/7/2025 Ongoing None Unlikely U-43808 NPNM 9/17/2025 Ongoing Submerged, indeterminate 8.91 768 0 0 0 0 Unlikely U-43822 NPNM 8/5/2025 Ongoing Submerged, indeterminate Unlikely U-43822 US1 8/5/2025 Ongoing None Unlikely U-43837 NPNM 9/17/2025 Ongoing None Unlikely U-43845 NPNM 9/25/2025 Ongoing Submerged, no flow 7.84 414 0 0 0 0 Unlikely U-43858 NPNM 8/7/2025 Ongoing None Unlikely U-43887 NPNM 8/5/2025 Ongoing Submerged, indeterminate Unlikely U-43887 US1 8/5/2025 Ongoing Submerged, indeterminate 8.79 368 0 0 0 0 Unlikely U-43942 NPNM 9/17/2025 Ongoing Submerged (not located)Unlikely U-43942 US1 9/17/2025 Ongoing Submerged, indeterminate 7.74 935 0 0 0 0 Unlikely U-43975 NPNM 9/17/2025 Ongoing None Unlikely U-43982 NPNM 8/7/2025 Ongoing None Unlikely U-44005 NPNM 8/5/2025 Ongoing Submerged (not located)Unlikely U-44005 US1 8/5/2025 Ongoing Submerged, indeterminate 8.52 388 0 0 0 0 Unlikely U-44011 NPNM 9/17/2025 Ongoing Substantial 8.08 1,275 0 0 0 0 Unlikely U-44026 NPNM 8/5/2025 Ongoing Submerged, indeterminate Unlikely U-44053 NPNM 9/25/2025 Ongoing None Unlikely U-44062 NPNM 9/17/2025 Ongoing None Unlikely U-44085 NPNM 8/7/2025 Ongoing None Unlikely U-44101 NPNM 8/7/2025 Ongoing None Unlikely U-44109 NPNM 9/17/2025 Ongoing None Unlikely U-44117 NPNM 8/7/2025 Ongoing None Unlikely Page 3 of 4 Printed 12/8/2025 Outfall Screening Summary Outfall ID Priority Class*Inspection Date Inspection Type Flow Description pH Conductivity (µS/cm) Ammonia (ppm) Total Chlorine (ppm) Free Chlorine (ppm) Detergent (mg/L) Illicit Discharge Potential U-44119 NPNM 8/7/2025 Ongoing None Unlikely U-44131 NPNM 8/5/2025 Ongoing Submerged (not located)Unlikely U-44131 US1 8/5/2025 Ongoing Submerged, indeterminate 8.09 790 0 0 0 0 Unlikely U-44142 NPNM 9/25/2025 Ongoing None Unlikely U-44156 NPNM 9/17/2025 Ongoing None Unlikely U-44189 NPNM 9/17/2025 Ongoing None Unlikely U-44238 NPNM 9/25/2025 Ongoing None Unlikely *Priority Class: P = Priority Outfall NPM = Non-Priority Outfall NPNM = Non-Priority Non-Major Outfall Page 4 of 4 Printed 12/8/2025 City of Oshkosh MS4 Annual Report - IDDE Program Summary 1/1/2025 to 12/31/2025 Total outfalls in inventory:549 Major outfalls 97 Minor outfalls 292 Supplemental outfalls 160 Priority outfalls 34 Non-priority major outfalls 84 Non-priority non-major outfalls 431 (current through 12/5/2025) Reporting Period: Total outfalls screened during period:93 % of total outfalls:17% Add'l upstream locations screened:33 Not submerged:41 % of inspected outfalls:44% Partially submerged:18 % of inspected outfalls:19% Submerged status of screened outfalls Fully submerged:34 % of inspected outfalls:37% Unlikely:79 % of inspected outfalls:85% Illicit discharge potential of screened outfalls Potential:14 % of inspected outfalls:15% Obvious:% of inspected outfalls: None 14 % of upstream manholes:42% Gross solids severity in upstream manholes Minor 9 % of upstream manholes:27% Moderate 5 % of upstream manholes:15% Severe 5 % of upstream manholes:15% Total samples collected during period:50 % of inspected outfalls:54% Flow samples 10 % of samples:20% Pool samples 40 % of samples:80% Parameter Ammonia (ppm)0 Min 1 Max Action level 1 # of samples exceeding action level 1 Free chlorine (mg/L)0 0 detection 0 Total chlorine (mg/L)0 0 detection 0 Detergent (mg/L)0 0.85 detection 1 Conductivity (µS/cm)151 2,890 2,000 1 pH (pH units)7.08 9.20 < 6.0 or > 9.0 4 Temperature (°F)71 84 No flow (dry)39 % of inspected outfalls:42% Flow status of screened outfalls Trickle flow 2 % of inspected outfalls:2% Moderate flow % of inspected outfalls: Substantial flow 1 % of inspected outfalls:1% Submerged 29 % of inspected outfalls:31% Not located 22 % of inspected outfalls:24% Major outfalls 27 Minor outfalls 36 Supplemental outfalls 30 Priority outfalls 32 Non-priority major outfalls 14 Non-priority non-major outfalls 47 Page 112/5/2025 Outfall Screening History City of Oshkosh Not inspected Unlikely illicit discharge Potential illicit discharge Obvious illicit discharge Row Labels 20 0 9 20 1 0 20 1 1 20 1 2 20 1 3 20 1 4 20 1 5 20 1 6 20 1 7 20 1 8 20 1 9 20 2 0 20 2 1 20 2 2 20 2 3 20 2 4 20 2 5 01-520 02-357 03-119 03-173 03-22 03-35 03-477 03-604 03-81 05-14 05-670 06-2296 06-2947 06-3027 06-52 06-810 06-829 09-107 11-177 11-376 11-512 12-2042 12-569 12-576 12-925 13-1098 13-1174 13-1283 13-1552 13-1588 13-2563 13-2736 13-471 13-68 14-996 15-2243 15-3339 15-3373 16-1178 Outfall Screening History City of Oshkosh Not inspected Unlikely illicit discharge Potential illicit discharge Obvious illicit discharge Row Labels 20 0 9 20 1 0 20 1 1 20 1 2 20 1 3 20 1 4 20 1 5 20 1 6 20 1 7 20 1 8 20 1 9 20 2 0 20 2 1 20 2 2 20 2 3 20 2 4 20 2 5 16-1205 16-1508 16-1628 16-594 16-844 16-941 16-995 FernauPond U-110530 U-110619 U-110619w U-111659 U-112427 U-112428 U-43347 U-43361 U-43406 U-43443 U-43456 U-43484 U-43543 U-43603 U-43616 U-43660 U-43661 U-43698 U-43703 U-43708 U-43713 U-43800 U-43808 U-43822 U-43837 U-43845 U-43858 U-43887 U-43942 U-43975 U-43982 Outfall Screening History City of Oshkosh Not inspected Unlikely illicit discharge Potential illicit discharge Obvious illicit discharge Row Labels 20 0 9 20 1 0 20 1 1 20 1 2 20 1 3 20 1 4 20 1 5 20 1 6 20 1 7 20 1 8 20 1 9 20 2 0 20 2 1 20 2 2 20 2 3 20 2 4 20 2 5 U-44005 U-44011 U-44026 U-44053 U-44062 U-44085 U-44101 U-44109 U-44117 U-44119 U-44131 U-44142 U-44156 U-44189 U-44238 " " " " " " " " # # # # # # 01-520 12-576 11-512 05-14 16-1178 11-376 03-8103-35 16-844 03-22 16-941 03-173 15-3373 U-110530 IDDE Potential #Potential (Physical/Chemical) (6) #Obvious (Physical/Chemical) (0) "Potential - Gross Solids Only (8) F:\ENVIRO\IDDE\GIS\IDDEpot_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.A-2 SCALE:1 " = 5,047 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN OUTFALLS WITH POTENTIALILLICIT DISCHARGES.Date:12/2/2025 Printed: JCWeis 12/2/2025 9:35:17 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! !!!! !! ! !! ! !! ! !!!!! !! !! ! ! !! ! ! !!!! ! ! !!!!!!!! ! ! ! ! ! ! 16-844 14-996 15-1217 13-1098 01-520 12-576 02-357 11-512 08-347 05-14 13-471 11-376 03-119 03-81 03-35 03-22 06-810 11-177 16-941 15-2292 16-995 06-829 16-594 16-1178 12-569 03-173 06-52 08-284 13-1588 13-1769 12-2581 12-2551 12-2538 05-621 11-1180 03-60403-477 13-3905 13-906 06-2739 12-2133 13-3820 15-3339 15-3373 15-1277W 13-2371 Wash41_03 06-3027 U-44258 U-110530 U-43571 U-43488U-43555 U-43478 U-44174 U-44215 U-44091 U-44243 U-43341U-43519 U-43774 U-44164 U-44079 U-43764 U-48076 U-48077 U-48090 U-43482 U-110284 U-43690U-43995 U-43385U-43958 U-44260 U-44023 U-43814 U-43611 U-43532 U-44172 U-43679 PROJECT NO.R3000958.03 FIGURE NO.A-3 SCALE:1 " = 3,013 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN 2026 SCHEDULED OUTFALL SCREENING.Date:12/12/2025 F:\ENVIRO\IDDE\GIS\Schedule_OshkoshMap.mxdPrinted: JCWeis 12/12/2025 11:03:10 AM Municipal Boundary !Priority Outfall (34) !Non-Priority Major Outfall (16) !Non-Priority Non-Major Outfall (51) 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ! ! ! ! ! ! ! !! ! ! ! ! !!!! ! ! ! ! 16-120516-1628 U-43785 U-43786 U-43882 U-43613 U-43554 U-43790U-44022U-43536 U-43598 U-43644 U-43841U-43915U-43705 U-43947U-43709U-43527U-43856 U-44083 U-44060 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 01-132 NPNM 2012 X 01-35 NPNM 2018 01-360 NPM 2024 01-380 NPNM 2015 01-520 P 2025 X X 01-642 NPM 2023 01-656 NPNM 2016 01-696 NPNM 2024 01-713 NPNM 2022 01-722 NPNM 2018 02-309 NPNM 2024 02-322 NPNM 2015 02-357 P 2025 X X 02-386 NPNM 2015 02-419 NPNM 2015 03-119 P 2025 X X 03-173 P 2025 X X 03-22 P 2025 X X 03-35 P 2025 X X 03-382 NPNM 2018 03-385 NPNM 2018 03-387 NPNM 2018 03-477 P 2025 X X 03-604 P 2025 X X 03-81 P 2025 X X 05-14 P 2025 X X 05-155 NPM 2024 05-241 NPNM 2024 05-621 NPM 2021 X 05-670 NPM 2025 06-1028 NPNM 2017 06-1083 NPNM 2017 06-1090 NPNM 2017 06-1136 NPM 2023 06-1149 NPNM 2017 06-1392 NPNM 2022 06-1394 NPNM 2022 06-1404 NPNM 2022 06-1475 NPNM 0 06-1476 NPNM 0 06-1477 NPNM 2022 06-1485 NPNM 0 06-1495 NPNM 2024 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 06-1562 NPNM 2023 06-1601 NPNM 2022 06-1619 NPNM 2022 06-1633 NPNM 2022 06-1636 NPNM 2022 06-1694 NPNM 2014 06-1696 NPM 2023 06-1709 NPNM 2024 06-1746 NPM 2024 06-1814 NPNM 2017 06-1816 NPNM 2017 06-216 NPNM 2019 06-221 NPNM 2024 06-2241 NPM 2023 06-2296 NPM 2025 06-2632 NPNM 2022 06-2739 NPM 2021 X 06-2756 NPNM 2022 06-2798 NPNM 2023 06-2804 NPNM 2022 06-2893 NPNM 0 06-2927 NPNM 2022 06-2933 NPNM 2022 06-2947 NPNM 2025 06-2955 NPNM 2022 06-2957 NPNM 2022 06-2960 NPNM 2022 06-2961 NPNM 2022 06-3 NPNM 2017 06-3027 P 2025 X X 06-471 NPNM 2023 06-473 NPNM 2023 06-478 NPNM 2023 06-489 NPM 2023 06-494 NPNM 2019 06-52 P 2025 X X 06-588 NPNM 2018 06-602 NPNM 2023 06-610 NPNM 2023 06-622a NPNM 2017 06-65 NPNM 2022 06-745 NPNM 2023 06-795 NPNM 2023 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 06-798 NPNM 2023 06-810 P 2025 X X 06-829 P 2025 X X 06-880 NPNM 2017 06-961 NPNM 2017 06-968 NPNM 2017 06-977 NPNM 2017 08-1042 NPNM 2024 08-1080 NPNM 2024 08-1111 NPM 2022 X 08-1150 NPNM 2015 08-1217 NPNM 2015 08-1239 NPNM 2016 08-271 NPNM 2024 08-279 NPNM 2024 08-284 P 2024 X X 08-347 P 2024 X X 08-55 NPNM 2024 08-937 NPNM 2024 08-952 NPNM 2015 09-107 NPM 2025 09-32 NPNM 2020 09-641 NPNM 2020 11-1018 NPM 2023 11-1097 NPM 2022 X 11-118 NPNM 2019 11-1180 NPM 2021 X 11-177 P 2025 X X 11-225 NPNM 2019 11-244 NPNM 2019 11-247 NPNM 2019 11-318 NPNM 2019 11-376 P 2025 X X 11-400 NPM 2022 X 11-46 NPNM 2019 11-479 NPNM 2016 11-512 P 2025 X X 11-515 NPNM 2019 11-64 NPNM 2019 11-69 NPNM 2019 11-71 NPNM 2019 11-75 NPNM 2019 11-79 NPNM 2019 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 11-801 NPNM 2019 11-803 NPNM 2019 11-805 NPNM 2019 12-1245 NPNM 2013 12-1261 NPNM 2013 12-1313 NPNM 2018 12-1414 NPNM 2013 12-1604 NPNM 2013 12-1676 NPNM 2013 12-1676a NPNM 2013 12-1682 NPNM 2013 12-1692 NPNM 2014 12-1700 NPNM 2013 12-1711 NPNM 2013 12-1781 NPNM 2015 12-1793 NPNM 2015 12-1795 NPNM 2015 12-1916 NPNM 2013 12-2026 NPNM 2015 12-2034 NPNM 2015 12-2042 NPM 2025 12-2075 NPNM 2013 12-2079 NPNM 2013 12-2089 NPNM 2013 12-2092a NPNM 2013 12-2093 NPNM 2013 12-2126 NPNM 2021 12-2128 NPNM 2021 12-2133 NPM 2021 X 12-2273 NPNM 2020 12-2297 NPNM 2016 12-2299 NPNM 2016 12-2484 NPM 2022 X 12-2508 NPNM 2024 12-2538 NPM 2021 X 12-2551 NPM 2021 X 12-2581 NPM 2021 X 12-569 P 2025 X X 12-576 P 2025 X X 12-889 NPNM 2015 12-890 NPNM 2020 12-925 NPM 2025 12-972 NPNM 2015 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 12-997 NPNM 2015 13-1098 P 2025 X X 13-1106 NPNM 2020 13-1109 NPNM 2018 13-1174 NPM 2025 13-1219 NPNM 2012 X 13-1283 NPM 2025 13-1552 NPM 2025 13-1588 P 2025 X X 13-1673 NPNM 2021 13-1715 NPNM 2024 13-1716 NPNM 2024 13-1718 NPNM 2017 13-1758 NPNM 2020 13-1766 NPNM 2024 13-1769 NPM 2021 X 13-1870 NPNM 2020 13-1957 NPNM 2013 13-2031 NPNM 2020 13-2135 NPNM 2021 13-2156 NPNM 2013 13-2332 NPM 2024 13-2371 NPM 2021 X 13-2382 NPNM 2021 13-2387 NPNM 2021 13-2390 NPNM 2021 13-2455 NPNM 2024 13-2464 NPNM 2020 13-2527 NPNM 2024 13-2557 NPNM 2024 13-2563 NPM 2025 13-2564 NPNM 2020 13-2596 NPNM 2020 13-2611 NPNM 2024 13-2613 NPM 2024 13-2666 NPNM 2021 13-2736 NPM 2025 13-2768 NPNM 2012 X 13-2822 NPNM 2021 13-2860 NPNM 2024 13-2867 NPNM 2024 13-2872 NPNM 2024 13-2872b NPM 2024 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 13-2886 NPNM 2012 X 13-3021 NPNM 2021 13-3024 NPNM 2021 13-3043 NPNM 2021 13-3095 NPNM 2012 X 13-3099 NPNM 2014 13-3119 NPNM 2021 13-3127 NPNM 2021 13-3130 NPNM 2021 13-3162 NPNM 2020 13-3194 NPNM 2020 13-3204 NPNM 2024 13-3204b NPM 2024 13-3224 NPNM 2018 13-3243 NPNM 2012 X 13-3427 NPNM 2023 13-3488 NPNM 2024 13-3497 NPNM 2024 13-3509 NPNM 2024 13-3636 NPNM 2021 13-3686 NPNM 2012 X 13-3706 NPNM 2021 13-3774 NPNM 2024 13-3806 NPNM 2021 13-3820 NPM 2021 X 13-3861 NPNM 2021 13-3869 NPNM 2021 13-3905 NPM 2021 X 13-3921 NPNM 2022 13-4012 NPM 2024 13-4025 NPNM 2023 13-4037 NPNM 2021 13-4046 NPNM 2021 13-4057 NPNM 2023 13-4075 NPNM 2023 13-4082 NPNM 2023 13-4084 NPNM 2023 13-4107 NPNM 2021 13-4147 NPNM 2022 13-471 P 2025 X X 13-68 NPM 2025 13-906 NPM 2021 X 14-1007 NPM 2023 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 14-1075 NPNM 2014 14-1130 NPNM 2013 14-1133 NPNM 2013 14-1136 NPNM 2013 14-1138 NPNM 2013 14-1139 NPNM 2013 14-1218 NPNM 2023 14-1220 NPNM 2023 14-1222 NPNM 2023 14-1229 NPNM 2023 14-124 NPNM 2013 14-1253 NPNM 2013 14-1253b NPNM 2013 14-1387 NPNM 2013 14-1514 NPM 2024 14-1515 NPNM 2013 14-1650 NPM 2022 X 14-1772 NPNM 2023 14-1779 NPNM 2023 14-1959 NPM 2023 14-2004 NPM 2022 X 14-2024 NPM 2022 X 14-2032 NPM 2024 14-2099 NPNM 2022 14-331 NPM 2022 X 14-368 NPNM 2010 X 14-400 NPM 2022 X 14-595 NPM 2023 14-615 NPNM 2013 14-635 NPM 2023 14-644 NPM 2023 14-645 NPM 2023 14-670 NPM 2023 14-759 NPNM 2013 14-766 NPM 2023 14-996 P 2025 X X 14-999 NPM 2024 15-027 NPNM 2011 X 15-1018 NPNM 2011 X 15-1020 NPNM 2019 15-1032 NPM 2024 15-1067 NPM 2024 15-1093 NPNM 2024 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 15-1106 NPNM 2011 X 15-1108 NPNM 2018 15-1110 NPNM 2011 X 15-1125 NPNM 2011 X 15-1127 NPNM 2011 X 15-1129 NPNM 2011 X 15-1132 NPNM 2011 X 15-1135 NPNM 2019 15-1137 NPNM 2019 15-1185 NPNM 2011 X 15-1187 NPNM 2011 X 15-1188 NPNM 2011 X 15-1217 NPM 2021 X 15-1219 NPM 2024 15-1225 NPNM 2019 15-1237 NPNM 2016 15-1239 NPNM 2011 X 15-1248 NPM 2024 15-1263 NPM 2024 15-1277 NPM 2022 X 15-1277W NPM 2021 X 15-1287 NPNM 2011 X 15-1348 NPNM 2023 15-146 NPNM 2021 15-1494 NPNM 2019 15-1746 NPNM 2013 15-1749 NPNM 2013 15-1806 NPM 2022 X 15-1807 NPNM 2013 15-1817 NPM 2022 X 15-1856 NPNM 2013 15-1983 NPNM 2019 15-2108 NPNM 2019 15-2242 NPNM 2020 15-2243 NPM 2025 15-2292 NPM 2021 X 15-2295 NPNM 2023 15-2297 NPNM 2023 15-2375 NPNM 2020 15-2388 NPNM 2020 15-2394 NPNM 2011 X 15-2409 NPNM 2021 15-2412 NPNM 2021 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 15-2475 NPNM 2021 15-2477 NPM 2024 15-2488 NPNM 2023 15-2514 NPNM 2019 15-2527 NPNM 2011 X 15-2528 NPNM 2011 X 15-2630 NPNM 2019 15-2650 NPNM 2017 15-2656 NPNM 2019 15-2690 NPNM 2020 15-2792 NPM 2024 15-3111 NPNM 2023 15-311a NPNM 2023 15-3200 NPNM 2024 15-3211 NPNM 2024 15-3212 NPM 2024 15-3219 NPNM 2024 15-3274 NPNM 2021 15-3329 NPNM 2022 15-3337 NPNM 2022 15-3339 P 2025 X X 15-3372 NPNM 2022 15-3373 P 2025 X X 15-3468 NPNM 2022 15-349 NPNM 2019 15-350 NPNM 2019 15-378 NPNM 2019 15-399 NPNM 2011 X 15-488 NPNM 2011 X 15-571 NPNM 2021 15-573 NPNM 2021 15-690 NPNM 2019 15-693 NPNM 2019 15-744 NPM 2022 X 15-787 NPM 2022 X 15-798 NPNM 2011 X 15-804 NPNM 2019 15-840 NPNM 2011 X 15-858 NPNM 2011 X 15-863 NPNM 2011 X 15-865 NPNM 2011 X 15-895 NPNM 2011 X 15-905 NPNM 2011 X City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 15-910 NPM 2022 X 15-940 NPM 2022 X 15-959 NPM 2022 X 15-965 NPNM 2011 X 16-1073 NPNM 2022 16-1178 P 2025 X X 16-119 NPNM 2016 16-1204 NPNM 2024 16-1205 P 2025 X X 16-1207 NPNM 2024 16-1213 NPNM 2024 16-1386 NPNM 2016 16-142 NPNM 2020 16-1499 NPNM 2020 16-1506 NPNM 2016 16-1508 NPM 2025 16-1571 NPNM 2016 16-1576 NPNM 2016 16-1578 NPNM 2016 16-1579 NPNM 2016 16-1580 NPNM 2016 16-1581 NPNM 2016 16-1582 NPNM 2016 16-1583 NPNM 2016 16-1586 NPNM 2016 16-1587 NPNM 2016 16-1610 NPM 2024 16-1628 P 2025 X X 16-1633 NPNM 2024 16-164 NPNM 2018 16-1918 NPNM 2012 X 16-1952 NPNM 2016 16-201 NPNM 2024 16-2092 NPM 2023 16-2099 NPNM 2012 X 16-2187 NPNM 2017 16-2203 NPNM 2022 16-2204 NPNM 2022 16-28 NPNM 2017 16-295 NPNM 2020 16-386 NPNM 2016 16-396 NPNM 2011 X 16-436 NPNM 2019 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 16-463 NPNM 2016 16-551 NPNM 2016 16-587 NPNM 2018 16-594 P 2025 X X 16-622 NPNM 2017 16-629 NPNM 2017 16-660 NPNM 2024 16-663 NPNM 2017 16-844 P 2025 X X 16-869 NPNM 2017 16-871 NPNM 2016 16-873 NPNM 2016 16-941 P 2025 X X 16-995 P 2025 X X EdgePond1out NPNM 2013 EdgePond2in NPNM 2013 FernauPond NPM 2025 OakwoodPondOut NPM 2024 Osh0944 NPNM 2011 X U-110284 NPNM 0 X U-110530 NPNM 2025 X U-110619 NPNM 2025 U-110619w NPNM 2025 U-111659 NPNM 2025 U-112427 NPNM 2025 U-112428 NPNM 2025 U-43341 NPNM 0 X U-43347 NPNM 2025 U-43361 NPNM 2025 U-43385 NPNM 0 X U-43406 NPNM 2025 U-43443 NPNM 2025 U-43456 NPNM 2025 U-43478 NPNM 0 X U-43482 NPNM 0 X U-43484 NPNM 2025 U-43488 NPNM 0 X U-43519 NPNM 0 X U-43527 NPNM 0 X U-43532 NPNM 0 X U-43536 NPNM 0 X U-43543 NPNM 2025 U-43554 NPNM 0 X City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 U-43555 NPNM 0 X U-43571 NPNM 0 X U-43598 NPNM 0 X U-43603 NPNM 2025 U-43611 NPNM 0 X U-43613 NPNM 0 X U-43616 NPNM 2025 U-43644 NPNM 0 X U-43660 NPNM 2025 U-43661 NPNM 2025 U-43679 NPNM 0 X U-43690 NPNM 0 X U-43698 NPNM 2025 U-43703 NPNM 2025 U-43705 NPNM 0 X U-43708 NPNM 2025 U-43709 NPNM 0 X U-43713 NPNM 2025 U-43764 NPNM 0 X U-43774 NPNM 0 X U-43784 NPNM 0 U-43785 NPNM 0 X U-43786 NPNM 0 X U-43790 NPNM 0 X U-43800 NPNM 2025 U-43808 NPNM 2025 U-43814 NPNM 0 X U-43822 NPNM 2025 U-43837 NPNM 2025 U-43841 NPNM 0 X U-43845 NPNM 2025 U-43856 NPNM 0 X U-43858 NPNM 2025 U-43882 NPNM 0 X U-43887 NPNM 2025 U-43915 NPNM 0 X U-43942 NPNM 2025 U-43947 NPNM 0 X U-43958 NPNM 0 X U-43975 NPNM 2025 U-43982 NPNM 2025 U-43995 NPNM 0 X U-44005 NPNM 2025 City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Outfall ID Outfall ID Class Last Screened 2026 2027 U-44011 NPNM 2025 U-44022 NPNM 0 X U-44023 NPNM 0 X U-44026 NPNM 2025 U-44053 NPNM 2025 U-44060 NPNM 0 X U-44062 NPNM 2025 U-44079 NPNM 0 X U-44083 NPNM 0 X U-44085 NPNM 2025 U-44091 NPNM 0 X U-44101 NPNM 2025 U-44109 NPNM 2025 U-44117 NPNM 2025 U-44119 NPNM 2025 U-44131 NPNM 2025 U-44142 NPNM 2025 U-44156 NPNM 2025 U-44164 NPNM 0 X U-44172 NPNM 0 X U-44174 NPNM 0 X U-44189 NPNM 2025 U-44215 NPNM 0 X U-44238 NPNM 2025 U-44243 NPNM 0 X U-44258 NPNM 0 X U-44260 NPNM 0 X U-48076 NPNM 0 X U-48077 NPNM 0 X U-48090 NPNM 0 X Wash41_01 NPM 2022 X Wash41_02 NPNM 2015 Wash41_03 NPM 2021 X Totals 101 90 P Priority Outfall NPM Non-Priority Major Outfall NPNM Non-Priority Non-Major Outfall City of Oshkosh Ongoing Screening Program Outfall Screening Schedule, by Year Outfall ID Class Last Screened 2026 2027 01-520 P 2025 X X 02-357 P 2025 X X 03-119 P 2025 X X 03-173 P 2025 X X 03-22 P 2025 X X 03-35 P 2025 X X 03-477 P 2025 X X 03-604 P 2025 X X 03-81 P 2025 X X 05-14 P 2025 X X 06-3027 P 2025 X X 06-52 P 2025 X X 06-810 P 2025 X X 06-829 P 2025 X X 08-284 P 2024 X X 08-347 P 2024 X X 11-177 P 2025 X X 11-376 P 2025 X X 11-512 P 2025 X X 12-569 P 2025 X X 12-576 P 2025 X X 13-1098 P 2025 X X 13-1588 P 2025 X X 13-471 P 2025 X X 14-996 P 2025 X X 15-3339 P 2025 X X 15-3373 P 2025 X X 16-1178 P 2025 X X 16-1205 P 2025 X X 16-1628 P 2025 X X 16-594 P 2025 X X 16-844 P 2025 X X 16-941 P 2025 X X 16-995 P 2025 X X 05-670 NPM 2025 06-2296 NPM 2025 09-107 NPM 2025 12-2042 NPM 2025 12-925 NPM 2025 13-1174 NPM 2025 Priority Outfalls (annual) Non-Priority Major Outfalls (every 5 years) 13-1283 NPM 2025 13-1552 NPM 2025 13-2563 NPM 2025 13-2736 NPM 2025 13-68 NPM 2025 15-2243 NPM 2025 16-1508 NPM 2025 FernauPond NPM 2025 05-621 NPM 2021 X 06-2739 NPM 2021 X 11-1180 NPM 2021 X 12-2133 NPM 2021 X 12-2538 NPM 2021 X 12-2551 NPM 2021 X 12-2581 NPM 2021 X 13-1769 NPM 2021 X 13-2371 NPM 2021 X 13-3820 NPM 2021 X 13-3905 NPM 2021 X 13-906 NPM 2021 X 15-1217 NPM 2021 X 15-1277W NPM 2021 X 15-2292 NPM 2021 X Wash41_03 NPM 2021 X 08-1111 NPM 2022 X 11-1097 NPM 2022 X 11-400 NPM 2022 X 12-2484 NPM 2022 X 14-1650 NPM 2022 X 14-2004 NPM 2022 X 14-2024 NPM 2022 X 14-331 NPM 2022 X 14-400 NPM 2022 X 15-1277 NPM 2022 X 15-1806 NPM 2022 X 15-1817 NPM 2022 X 15-744 NPM 2022 X 15-787 NPM 2022 X 15-910 NPM 2022 X 15-940 NPM 2022 X 15-959 NPM 2022 X Wash41_01 NPM 2022 X 01-642 NPM 2023 06-1136 NPM 2023 06-1696 NPM 2023 06-2241 NPM 2023 06-489 NPM 2023 11-1018 NPM 2023 14-1007 NPM 2023 14-1959 NPM 2023 14-595 NPM 2023 14-635 NPM 2023 14-644 NPM 2023 14-645 NPM 2023 14-670 NPM 2023 14-766 NPM 2023 16-2092 NPM 2023 01-360 NPM 2024 05-155 NPM 2024 06-1746 NPM 2024 13-2332 NPM 2024 13-2613 NPM 2024 13-2872b NPM 2024 13-3204b NPM 2024 13-4012 NPM 2024 14-1514 NPM 2024 14-2032 NPM 2024 14-999 NPM 2024 15-1032 NPM 2024 15-1067 NPM 2024 15-1219 NPM 2024 15-1248 NPM 2024 15-1263 NPM 2024 15-2477 NPM 2024 15-2792 NPM 2024 15-3212 NPM 2024 16-1610 NPM 2024 OakwoodPondOut NPM 2024 01-35 NPNM 2018 01-380 NPNM 2015 01-656 NPNM 2016 01-696 NPNM 2024 01-713 NPNM 2022 01-722 NPNM 2018 02-309 NPNM 2024 02-322 NPNM 2015 02-386 NPNM 2015 02-419 NPNM 2015 03-382 NPNM 2018 03-385 NPNM 2018 03-387 NPNM 2018 05-241 NPNM 2024 06-1028 NPNM 2017 Non-Priority Non-Major Outfalls (every 10 years) 06-1083 NPNM 2017 06-1090 NPNM 2017 06-1149 NPNM 2017 06-1392 NPNM 2022 06-1394 NPNM 2022 06-1404 NPNM 2022 06-1477 NPNM 2022 06-1495 NPNM 2024 06-1562 NPNM 2023 06-1601 NPNM 2022 06-1619 NPNM 2022 06-1633 NPNM 2022 06-1636 NPNM 2022 06-1694 NPNM 2014 06-1709 NPNM 2024 06-1814 NPNM 2017 06-1816 NPNM 2017 06-216 NPNM 2019 06-221 NPNM 2024 06-2632 NPNM 2022 06-2756 NPNM 2022 06-2798 NPNM 2023 06-2804 NPNM 2022 06-2927 NPNM 2022 06-2933 NPNM 2022 06-2947 NPNM 2025 06-2955 NPNM 2022 06-2957 NPNM 2022 06-2960 NPNM 2022 06-2961 NPNM 2022 06-3 NPNM 2017 06-471 NPNM 2023 06-473 NPNM 2023 06-478 NPNM 2023 06-494 NPNM 2019 06-588 NPNM 2018 06-602 NPNM 2023 06-610 NPNM 2023 06-622a NPNM 2017 06-65 NPNM 2022 06-745 NPNM 2023 06-795 NPNM 2023 06-798 NPNM 2023 06-880 NPNM 2017 06-961 NPNM 2017 06-968 NPNM 2017 06-977 NPNM 2017 08-1042 NPNM 2024 08-1080 NPNM 2024 08-1150 NPNM 2015 08-1217 NPNM 2015 08-1239 NPNM 2016 08-271 NPNM 2024 08-279 NPNM 2024 08-55 NPNM 2024 08-937 NPNM 2024 08-952 NPNM 2015 09-32 NPNM 2020 09-641 NPNM 2020 11-118 NPNM 2019 11-225 NPNM 2019 11-244 NPNM 2019 11-247 NPNM 2019 11-318 NPNM 2019 11-46 NPNM 2019 11-479 NPNM 2016 11-515 NPNM 2019 11-64 NPNM 2019 11-69 NPNM 2019 11-71 NPNM 2019 11-75 NPNM 2019 11-79 NPNM 2019 11-801 NPNM 2019 11-803 NPNM 2019 11-805 NPNM 2019 12-1245 NPNM 2013 12-1261 NPNM 2013 12-1313 NPNM 2018 12-1414 NPNM 2013 12-1604 NPNM 2013 12-1676 NPNM 2013 12-1676a NPNM 2013 12-1682 NPNM 2013 12-1692 NPNM 2014 12-1700 NPNM 2013 12-1711 NPNM 2013 12-1781 NPNM 2015 12-1793 NPNM 2015 12-1795 NPNM 2015 12-1916 NPNM 2013 12-2026 NPNM 2015 12-2034 NPNM 2015 12-2075 NPNM 2013 12-2079 NPNM 2013 12-2089 NPNM 2013 12-2092a NPNM 2013 12-2093 NPNM 2013 12-2126 NPNM 2021 12-2128 NPNM 2021 12-2273 NPNM 2020 12-2297 NPNM 2016 12-2299 NPNM 2016 12-2508 NPNM 2024 12-889 NPNM 2015 12-890 NPNM 2020 12-972 NPNM 2015 12-997 NPNM 2015 13-1106 NPNM 2020 13-1109 NPNM 2018 13-1673 NPNM 2021 13-1715 NPNM 2024 13-1716 NPNM 2024 13-1718 NPNM 2017 13-1758 NPNM 2020 13-1766 NPNM 2024 13-1870 NPNM 2020 13-1957 NPNM 2013 13-2031 NPNM 2020 13-2135 NPNM 2021 13-2156 NPNM 2013 13-2382 NPNM 2021 13-2387 NPNM 2021 13-2390 NPNM 2021 13-2455 NPNM 2024 13-2464 NPNM 2020 13-2527 NPNM 2024 13-2557 NPNM 2024 13-2564 NPNM 2020 13-2596 NPNM 2020 13-2611 NPNM 2024 13-2666 NPNM 2021 13-2822 NPNM 2021 13-2860 NPNM 2024 13-2867 NPNM 2024 13-2872 NPNM 2024 13-3021 NPNM 2021 13-3024 NPNM 2021 13-3043 NPNM 2021 13-3099 NPNM 2014 13-3119 NPNM 2021 13-3127 NPNM 2021 13-3130 NPNM 2021 13-3162 NPNM 2020 13-3194 NPNM 2020 13-3204 NPNM 2024 13-3224 NPNM 2018 13-3427 NPNM 2023 13-3488 NPNM 2024 13-3497 NPNM 2024 13-3509 NPNM 2024 13-3636 NPNM 2021 13-3706 NPNM 2021 13-3774 NPNM 2024 13-3806 NPNM 2021 13-3861 NPNM 2021 13-3869 NPNM 2021 13-3921 NPNM 2022 13-4025 NPNM 2023 13-4037 NPNM 2021 13-4046 NPNM 2021 13-4057 NPNM 2023 13-4075 NPNM 2023 13-4082 NPNM 2023 13-4084 NPNM 2023 13-4107 NPNM 2021 13-4147 NPNM 2022 14-1075 NPNM 2014 14-1130 NPNM 2013 14-1133 NPNM 2013 14-1136 NPNM 2013 14-1138 NPNM 2013 14-1139 NPNM 2013 14-1218 NPNM 2023 14-1220 NPNM 2023 14-1222 NPNM 2023 14-1229 NPNM 2023 14-124 NPNM 2013 14-1253 NPNM 2013 14-1253b NPNM 2013 14-1387 NPNM 2013 14-1515 NPNM 2013 14-1772 NPNM 2023 14-1779 NPNM 2023 14-2099 NPNM 2022 14-615 NPNM 2013 14-759 NPNM 2013 15-1020 NPNM 2019 15-1093 NPNM 2024 15-1108 NPNM 2018 15-1135 NPNM 2019 15-1137 NPNM 2019 15-1225 NPNM 2019 15-1237 NPNM 2016 15-1348 NPNM 2023 15-146 NPNM 2021 15-1494 NPNM 2019 15-1746 NPNM 2013 15-1749 NPNM 2013 15-1807 NPNM 2013 15-1856 NPNM 2013 15-1983 NPNM 2019 15-2108 NPNM 2019 15-2242 NPNM 2020 15-2295 NPNM 2023 15-2297 NPNM 2023 15-2375 NPNM 2020 15-2388 NPNM 2020 15-2409 NPNM 2021 15-2412 NPNM 2021 15-2475 NPNM 2021 15-2488 NPNM 2023 15-2514 NPNM 2019 15-2630 NPNM 2019 15-2650 NPNM 2017 15-2656 NPNM 2019 15-2690 NPNM 2020 15-3111 NPNM 2023 15-311a NPNM 2023 15-3200 NPNM 2024 15-3211 NPNM 2024 15-3219 NPNM 2024 15-3274 NPNM 2021 15-3329 NPNM 2022 15-3337 NPNM 2022 15-3372 NPNM 2022 15-3468 NPNM 2022 15-349 NPNM 2019 15-350 NPNM 2019 15-378 NPNM 2019 15-571 NPNM 2021 15-573 NPNM 2021 15-690 NPNM 2019 15-693 NPNM 2019 15-804 NPNM 2019 16-1073 NPNM 2022 16-119 NPNM 2016 16-1204 NPNM 2024 16-1207 NPNM 2024 16-1213 NPNM 2024 16-1386 NPNM 2016 16-142 NPNM 2020 16-1499 NPNM 2020 16-1506 NPNM 2016 16-1571 NPNM 2016 16-1576 NPNM 2016 16-1578 NPNM 2016 16-1579 NPNM 2016 16-1580 NPNM 2016 16-1581 NPNM 2016 16-1582 NPNM 2016 16-1583 NPNM 2016 16-1586 NPNM 2016 16-1587 NPNM 2016 16-1633 NPNM 2024 16-164 NPNM 2018 16-1952 NPNM 2016 16-201 NPNM 2024 16-2187 NPNM 2017 16-2203 NPNM 2022 16-2204 NPNM 2022 16-28 NPNM 2017 16-295 NPNM 2020 16-386 NPNM 2016 16-436 NPNM 2019 16-463 NPNM 2016 16-551 NPNM 2016 16-587 NPNM 2018 16-622 NPNM 2017 16-629 NPNM 2017 16-660 NPNM 2024 16-663 NPNM 2017 16-869 NPNM 2017 16-871 NPNM 2016 16-873 NPNM 2016 EdgePond1out NPNM 2013 EdgePond2in NPNM 2013 Wash41_02 NPNM 2015 06-1475 NPNM 06-1476 NPNM 06-1485 NPNM 06-2893 NPNM U-110619 NPNM 2025 U-110619w NPNM 2025 U-111659 NPNM 2025 U-112427 NPNM 2025 U-112428 NPNM 2025 U-43347 NPNM 2025 U-43361 NPNM 2025 U-43406 NPNM 2025 U-43443 NPNM 2025 U-43456 NPNM 2025 U-43484 NPNM 2025 U-43543 NPNM 2025 U-43603 NPNM 2025 U-43616 NPNM 2025 U-43660 NPNM 2025 U-43661 NPNM 2025 U-43698 NPNM 2025 U-43703 NPNM 2025 U-43708 NPNM 2025 U-43713 NPNM 2025 U-43784 NPNM U-43800 NPNM 2025 U-43808 NPNM 2025 U-43822 NPNM 2025 U-43837 NPNM 2025 U-43845 NPNM 2025 U-43858 NPNM 2025 U-43887 NPNM 2025 U-43942 NPNM 2025 U-43975 NPNM 2025 U-43982 NPNM 2025 U-44005 NPNM 2025 U-44011 NPNM 2025 U-44026 NPNM 2025 U-44053 NPNM 2025 U-44062 NPNM 2025 U-44085 NPNM 2025 U-44101 NPNM 2025 U-44109 NPNM 2025 U-44117 NPNM 2025 U-44119 NPNM 2025 U-44131 NPNM 2025 U-44142 NPNM 2025 U-44156 NPNM 2025 U-44189 NPNM 2025 U-44238 NPNM 2025 U-110284 NPNM X U-110530 NPNM 2025 X U-43341 NPNM X U-43385 NPNM X U-43478 NPNM X U-43482 NPNM X U-43488 NPNM X U-43519 NPNM X U-43527 NPNM X U-43532 NPNM X U-43536 NPNM X U-43554 NPNM X U-43555 NPNM X U-43571 NPNM X U-43598 NPNM X U-43611 NPNM X U-43613 NPNM X U-43644 NPNM X U-43679 NPNM X U-43690 NPNM X U-43705 NPNM X U-43709 NPNM X U-43764 NPNM X U-43774 NPNM X U-43785 NPNM X U-43786 NPNM X U-43790 NPNM X U-43814 NPNM X U-43841 NPNM X U-43856 NPNM X U-43882 NPNM X U-43915 NPNM X U-43947 NPNM X U-43958 NPNM X U-43995 NPNM X U-44022 NPNM X U-44023 NPNM X U-44060 NPNM X U-44079 NPNM X U-44083 NPNM X U-44091 NPNM X U-44164 NPNM X U-44172 NPNM X U-44174 NPNM X U-44215 NPNM X U-44243 NPNM X U-44258 NPNM X U-44260 NPNM X U-48076 NPNM X U-48077 NPNM X U-48090 NPNM X 01-132 NPNM 2012 X 13-1219 NPNM 2012 X 13-2768 NPNM 2012 X 13-2886 NPNM 2012 X 13-3095 NPNM 2012 X 13-3243 NPNM 2012 X 13-3686 NPNM 2012 X 14-368 NPNM 2010 X 15-027 NPNM 2011 X 15-1018 NPNM 2011 X 15-1106 NPNM 2011 X 15-1110 NPNM 2011 X 15-1125 NPNM 2011 X 15-1127 NPNM 2011 X 15-1129 NPNM 2011 X 15-1132 NPNM 2011 X 15-1185 NPNM 2011 X 15-1187 NPNM 2011 X 15-1188 NPNM 2011 X 15-1239 NPNM 2011 X 15-1287 NPNM 2011 X 15-2394 NPNM 2011 X 15-2527 NPNM 2011 X 15-2528 NPNM 2011 X 15-399 NPNM 2011 X 15-488 NPNM 2011 X 15-798 NPNM 2011 X 15-840 NPNM 2011 X 15-858 NPNM 2011 X 15-863 NPNM 2011 X 15-865 NPNM 2011 X 15-895 NPNM 2011 X 15-905 NPNM 2011 X 15-965 NPNM 2011 X 16-1918 NPNM 2012 X 16-2099 NPNM 2012 X 16-396 NPNM 2011 X Osh0944 NPNM 2011 X Totals 101 90 P Priority Outfall NPM Non-Priority Major Outfall NPNM Non-Priority Non-Major Outfall Appendix B IDDE Tracking Maps and Correspondence ! ! ! ! ! ! ! ! ! ! ! ! 01-520 US1 12-576 US1 03-22 US1 11-376 US1 03-81 US103-35 US1 03-173 US1 16-1178 US1 11-512 US1 05-14 US1 Gross Solids (manholes) !Moderate (5) !Severe (5) F:\ENVIRO\IDDE\GIS\Floatables_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.B-1 SCALE:1 " = 3,333 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN MANHOLES WITH FLOATABLEGROSS SOLIDS.Date:12/17/2024 Printed: JCWeis 11/26/2025 3:10:56 PM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! !! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! # # ## ! ! ! ! ! OREGON ST N MAIN ST NEBRASKA ST S MAIN ST E 007TH(SEVENTH)AVE E 009TH(NINTH)AVE E 010TH(TENTH)AVE E 008TH(EIGHTH)AVE PIONEERDR ALLEY W005TH(FIFTH)AVE W 010TH (TENTH)AVE W 006TH(SIXTH)AVE W 008TH (EIGHTH)AVE W 011TH(ELEVENTH)AVE W 009TH(NINTH)AVE 03-35 03-22 08-279 03-60403-604 03-22 03-35 03-379 03-81 03-81 08-279 09-107 09-32 09-641 F:\ENVIRO\IDDE\GIS\_Oshkosh\AreaMap_03-22.mxd PROJECT NO.R3000958.03 FIGURE NO.B-2 SCALE:1 " = 255 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSH, WINNEBAGO COUNTY, WISCONSIN AREA MAP - OUTFALL 03-22(8/5/2025).Date:11/26/2025 Printed: JCWeis 12/8/2025 9:51:50 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com Outfall fully submerged(not located) Manhole 03-22 US1Floating gross solids (litter)pH: 9.03 ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! !! ! ! ! ! ! !! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! # ## ! ! Outfall fully submerged(not located) Manhole 03-173 US1Floating gross solids (litter)pH: 9.14 ALLEY W 016TH (SIXTEENTH)AVE W 015TH(FIFTEENTH)AVE E 015TH (FIFTEENTH)AVE W 017TH (SEVENTEENTH)AVE S MAIN ST NEBRASKA ST DOTY ST OREGON ST 14-400 03-173 03-604 03-173 03-477 14-400 14-368 F:\ENVIRO\IDDE\GIS\_Oshkosh\AreaMap_03-173.mxd PROJECT NO.R3000958.03 FIGURE NO.B-3 SCALE:1 " = 208 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSH, WINNEBAGO COUNTY, WISCONSIN AREA MAP - OUTFALL 03-173(8/5/2025).Date:11/26/2025 Printed: JCWeis 12/8/2025 9:50:22 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ") ") ") ") ") ")") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! # # # # # !! !!! ! ! ## ## #### ## !!!! !!!!!! !! !! W SMITH AVE COMET ST GENEVA ST BACON AVE JACKSON ST N MAIN ST 15-3339 15-3337 15-3329 15-3372 15-3373 U-43808 U-44189 15-1817 15-940 15-744 15-3337 15-3373 15-3372 15-3329 F:\ENVIRO\IDDE\GIS\_Oshkosh\AreaMap_15-3373.mxd PROJECT NO.R3000958.03 FIGURE NO.B-4 SCALE:1 " = 200 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSH, WINNEBAGO COUNTY, WISCONSIN AREA MAP - OUTFALL 15-3373(9/17/2025).Date:11/26/2025 Printed: JCWeis 12/8/2025 9:55:45 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com Outfall 15-3373Partially submerged(pooled water in basin) Curb Inlet dryCurb Inlet (15-3373 US1)Ammonia: 1 ppmDetergent: 0.85 mg/L Outfall pool hydraulicallydisconnected fromadjacent outfalls 1 Jason Weis From:Gierach, Justin <JGierach@oshkoshwi.gov> Sent:Wednesday, October 1, 2025 9:52 AM To:Jason Weis; Deckert, Alyssa Cc:Brian Wayner; Canady, Casey; Meyer, Brittney; Hintz, Andrew Subject:RE: Potential illicit discharge - 15-3373 (Comet St) CAUTION: External Sender. Please do not click on links or open attachments from senders you do not trust. Jason- We did have Street televise this system. They indicated that they found nothing suspicious. However, there is a lateral connection (I believe for 2328 Comet Street) that may look suspicious (see below). Casey/Bri ney, can you please review the televising and work with Jason/Brian to confirm the location and reach out to the property owner for some dye testing. We may need to involve streets again to help with the dye testing. 2 Respectfully, Justin Gierach, P.E. Engineering Division Manager/City Engineer, Department of Public Works City of Oshkosh 920.236.5065 Follow us: Web | Facebook | X From: Jason Weis <Jason.Weis@westwoodps.com> Sent: Wednesday, October 1, 2025 9:21 AM To: Deckert, Alyssa <ADeckert@oshkoshwi.gov>; Gierach, Justin <JGierach@oshkoshwi.gov> Cc: Brian Wayner <Brian.Wayner@westwoodps.com> Subject: RE: Potential illicit discharge - 15-3373 (Comet St) EXTERNAL SENDER. Only open links and attachments from known senders. DO NOT provide your username or password to anyone. I completed the 2025 outfall screening last week. With the exception of the floating debris in upstream manholes, there were no significant illicit discharges other than the 15-3373 (Comet St) detergent/ammonia discharge. I rescreened the Comet Street outfall and curb inlets on 9/25/2025. The condition was similar to the 9/17 screening – the detention basin water was backed up into the first curb inlet, and the next curb inlet was dry. A sample from the pool in the first curb inlet once again had detections of detergent (0.6 mg/L) and ammonia (3 ppm). I also collected a sample from the pool at outfall 15-3372 (Geneva Street, one block west), which had no detections. The pools at the ends of the outfalls did not seem to connect with each other in the pond; therefore, the detergent and ammonia in the Comet Street outfall pool is likely coming from Comet Street and not being transported from a diAerent part of the pond. Because of the pooled condition, isolating the source of the discharge becomes diAicult. The discharge could originate from the upper end of the drainage basin (south end of Comet Street) and ultimately collect in the pool in the first curb inlet. I believe the City was going to televise this segment of storm sewer – perhaps this will reveal a cross connection or other source to investigate. If the detergent is coming from residential car washing, it would not be considered an illicit discharge. However, the elevated ammonia levels are typically not consistent with car washing, and more indicative of sanitary discharges. When screening the curb inlets, I noticed that the house at the second curb inlet (2348 Comet St) had a hose stretched across the front lawn to the sidewalk, which appeared to come from a sump pump discharge on the north side of the house. Google Maps / Streetview seems to show this hose being present for several years, often accompanied by a pool of water on the sidewalk or curb. If there is a basement sink, washing machine, toilet, or other sanitary connection piped into the sump pump, this could be a source of the detergent/ammonia. (Note that there is a pit bull at this house, as indicated by the sign on the door, and the chained dog that was in the backyard during the screening.) 3 If you need further assistance with tracking this discharge, please let us know. I will be on medical leave for the next few weeks starting 10/2, but Brian or someone else from our oAice would be happy to assist with sampling, testing or tracking. Jason Weis, P.E., GISP Aviation GIS Manager jason.weis@westwoodps.com direct (920) 830-6106 main (920) 735-6900 Westwood One Systems Drive Appleton, WI 54914 westwoodps.com From: Jason Weis Sent: Thursday, September 18, 2025 1:01 PM To: Deckert, Alyssa <adeckert@oshkoshwi.gov>; Gierach, Justin <jgierach@oshkoshwi.gov> Cc: Brian Wayner <Brian.Wayner@westwoodps.com> Subject: Potential illicit discharge - 15-3373 (Comet St) During yesterday’s screening, the sample for outfall 15-3373 (Comet St) had an ammonia concentration of 1 ppm and a detergent concentration of 0.85 mg/L. The outfall pipe was partially submerged in the detention basin, so the sample was collected from the shallow (3”) pool in the first upstream curb inlet, located on the east edge of the cul-de-sac. This outfall has had detergent issues in the past (2022), so it appears to be an ongoing issue. The combination of ammonia and detergent could point to a potential sanitary sewer cross connection. Would it be possible to get this short segment of storm sewer (~300’) televised to look for potential laterals or other connections? When I resume the screening (likely next week), I’ll collect another sample from that storm sewer branch, along with samples from the other outfalls that discharge into that basin, as well as the pond in general, since the entire pond may have elevated levels and may be simply backing up into the outfall and curb inlet(s). The map from the 2022 report is attached for reference. Jason Weis, P.E., GISP Aviation GIS Manager jason.weis@westwoodps.com direct (920) 830-6106 main (920) 735-6900 Westwood One Systems Drive Appleton, WI 54914 westwoodps.com ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! !!!! !!!! !!!! SOUTHLAND AVE N WASHBURN ST SULLIVAN ST LOMBARD AVE N WESTFIELD ST SKYVIEW AVE TAFT AVE N KOELLER ST 16-844 16-191816-2099 16-2092 U-44172 16-1508 16-191816-2099 16-844 16-2092 F:\ENVIRO\IDDE\GIS\_Oshkosh\AreaMap_16-844.mxd PROJECT NO.R3000958.03 FIGURE NO.B-5 SCALE:1 " = 300 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSH, WINNEBAGO COUNTY, WISCONSIN AREA MAP - OUTFALL 16-844(9/25/2025).Date:1/23/2024 Printed: JCWeis 12/8/2025 9:39:20 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com Trickle Flow2,890 µS/cm conductivity ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ! !!!! ! # ! Outfall 16-941Partially submergedpH: 9.20 Upstream curb inletWater in sumpNo flow entering discharge pipe N WESTHAVEN DR WESTOWNE AVE PATRIOT LA 16-941 06-622a 06-622a 16-1204 16-1207 16-1610 16-869 16-941 16-995 F:\ENVIRO\IDDE\GIS\_Oshkosh\AreaMap_16-941.mxd PROJECT NO.R3000958.03 FIGURE NO.B-6 SCALE:1 " = 187 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSH, WINNEBAGO COUNTY, WISCONSIN AREA MAP - OUTFALL 16-941(9/12/2025).Date:12/8/2025 Printed: JCWeis 12/8/2025 10:24:45 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! !! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! # # # ! ! ! ! ! # ! PIONEER DR E 007TH(SEVENTH)AVE E 011TH (ELEVENTH)AVE E 008TH (EIGHTH)AVE E 009TH (NINTH)AVE PIONEER DRE010TH(TENTH)AVE S MAIN ST 03-81 08-55U-112427 U-112428 U-110530 F:\ENVIRO\IDDE\GIS\_Oshkosh\AreaMap_U-110530.mxd PROJECT NO.R3000958.03 FIGURE NO.B-7 SCALE:1 " = 158 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING CITY OF OSHKOSH, WINNEBAGO COUNTY, WISCONSIN AREA MAP - OUTFALL U-110530(8/5/2025).Date:11/26/2025 Printed: JCWeis 12/8/2025 10:12:46 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com Outfall fully submerged Manhole U-110530 US1pH: 9.08 Appendix C Outfall Inspection Reports 01-520 City of Oshkosh o20250805092908.JPG Outfall Notes: Storm sewer from Jackson St discharges to river from north. Outfall fully submerged - pipe info from MS4 map. (OSH-9424 in early reports.) Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):54 Height/Depth (in): Width (in): Not Physically Located Easting:791,740 Northing:472,395 Longitude:-88.54280 Latitude:44.01541 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43601 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 9:35:35 AM Inspector:JCW o20250805092920.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 01-520 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 City of Oshkosh Inspection Date:9/10/2024 3:05:18 PM o20240910150144.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 9:52:11 AM o20230717083628.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/16/2022 1:40:00 PM o20220916133918.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 10:15:00 AM o20210816101510.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 01-520 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 City of Oshkosh Inspection Date:8/19/2020 1:19:20 PM o20200819131544.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 01-520 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 11:04:00 AM o20191105110258.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 9:16:36 AM o20191008081446.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 11:06:05 AM o20181024110412.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 City of Oshkosh Inspection Date:10/17/2017 3:18:17 PM o20171017151448.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 3:38:45 PM o20161018153652.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):33 Vegetation:None Benthic Growth:Severe Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/22/2015 2:05:49 PM o20150922130830.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located during this screening - screened at 01- 520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 8:38:02 AM o20141009073704.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):56 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 4 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 City of Oshkosh Inspection Date:9/5/2013 12:59:39 PM o20130905120336.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged. Outfall screened upstream at 01-520 US1. 2012 screening follow-up. Gross solids in upstream mh. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):49 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 9:53:44 AM o20120927085734.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/21/2012 10:35:10 AM o20120621092646.JPG Previous Rainfall (hrs):0-24Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. Outfall fully submerged; screened upsteam at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Inspection Date:10/11/2011 2:19:37 PM o20111011142004.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged. Outfall screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 5 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 City of Oshkosh Inspection Date:8/25/2010 12:43:21 PM o20100825123724.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6715.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 01-520 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):56 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 6 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 US1 City of Oshkosh o20250805093002.JPG Outfall Notes: Upstream manhole located approx 25 ft N of outfall 01-520. Intermediate area consists of rip-rap shoreline. (OSH-9424 US1 in early reports.) Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:791,743 Northing:472,419 Longitude:-88.54279 Latitude:44.01547 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 01-520 NR 216 Class: Inspection Date:8/5/2025 9:36:41 AM Inspector:JCW o20250805093008.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-15 Time Collected:09:30 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.06 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):80 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):66 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):961 µS/cm 2025 Page 1 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 US1 City of Oshkosh Inspection Date:9/10/2024 3:06:08 PM o20240910150234.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.91 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):66 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:417 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 9:55:37 AM o20230717083818.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.79 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):65 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:442 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/16/2022 1:44:00 PM o20220916134136.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.61 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):66 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:472 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 10:19:15 AM o20210816101558.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.57 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):71 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:844 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 US1 City of Oshkosh Inspection Date:8/19/2020 1:20:07 PM o20200819131610.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.11 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Elevated pH seemed widespread in river. units Temperature 85 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):68 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:372 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 11:05:04 AM o20191105110322.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):67 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 9:18:01 AM o20191008081524.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.28 Detergents:0.9 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Detergent detected. units Temperature 61 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):73 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:381 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 11:07:34 AM o20181024110538.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.02 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 49 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):70 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:336 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 US1 City of Oshkosh Inspection Date:10/17/2017 3:21:22 PM o20171017151640.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.72 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):67 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:896 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 3:42:40 PM o20161018153916.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.16 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):67 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:531 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/22/2015 2:08:37 PM o20150922130946.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.1 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):70 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:917 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 8:42:09 AM o20141009073910.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.84 Detergents:0 ppm ppm mg/L Floating gross solids (litter) inside manhole. units Temperature 57 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):64 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:1318 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 4 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 US1 City of Oshkosh Inspection Date:9/5/2013 1:02:45 PM o20130905120924.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.51 Detergents:0 ppm ppm mg/L 2012 screening follow-up. Significant gross solids in manhole - similar to previous years. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):69 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:424 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 9:57:25 AM o20120927085918.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.77 Detergents:0 ppm ppm mg/L 2011 gross solids follow-up. units Temperature 60 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):69 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:542 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/21/2012 10:34:01 AM o20120621092424.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):70 Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Inspection Date:10/11/2011 2:24:37 PM o20111011142110.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.49 Detergents:-- ppm ppm mg/L 2010 screening follow-up. Floatable debris still present. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):64 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 5 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 01-520 US1 City of Oshkosh Inspection Date:5/26/2011 11:13:00 AM o20110526111400.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/25/2010 12:53:35 PM o20100825124708.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.18 Detergents:0 ppm ppm mg/L Significant floatable debris in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):72 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6718.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Clearly visible in bottl Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.6 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles). Significant floatables in manhole. Brown color. units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):61 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 6 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 City of Oshkosh o20250805084806.JPG Outfall Notes: Storm sewer from Winnebago Ave discharges to lake from northwest. Outfall not located - pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Arch Material: CMP Diameter (in): Height/Depth (in):24 Width (in):35 Not Physically Located Easting:798,869 Northing:472,835 Longitude:-88.51570 Latitude:44.01662 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43371 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 8:53:03 AM Inspector:JCW o20250805084818.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 02-357 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 City of Oshkosh Inspection Date:8/22/2024 8:43:04 AM o20240822084104.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 8:46:50 AM o20230717072940.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 9:09:00 AM o20220923090838.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 8:57:00 AM o20210816085746.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 City of Oshkosh Inspection Date:8/20/2020 1:04:00 PM o20200820130304.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 2:15:46 PM o20190917131538.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 10:13:07 AM o20181022101158.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 1:32:28 PM o20171017133026.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 City of Oshkosh Inspection Date:10/10/2016 10:53:43 AM o20161010105240.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/22/2015 7:14:30 AM o20150922061856.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 12:37:08 PM o20141009113806.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:9/27/2012 8:29:10 AM o20120927073330.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 City of Oshkosh Inspection Date:6/20/2012 8:05:53 AM o20120620070830.JPG Previous Rainfall (hrs):24-48Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. Outfall fully submerged; screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Inspection Date:10/3/2011 10:26:14 AM o20111003102714.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/10/2011 8:51:00 AM o20110510085116.JPG Previous Rainfall (hrs):0-24Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 02-357 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 US1 City of Oshkosh o20250805084832.JPG Outfall Notes: Upstream manhole located approx 34 ft NW of outfall 02-357. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:798,851 Northing:472,858 Longitude:-88.51577 Latitude:44.01668 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 02-357 NR 216 Class: Inspection Date:8/5/2025 8:53:53 AM Inspector:JCW o20250805084842.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:Moderate Sample ID:250805-86 Time Collected:08:50 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.47 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Blue-green algae from lake. units Temperature (field):76 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):35 Petrol. Sheen Suds Sewage Algae Other Green ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):399 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 US1 City of Oshkosh Inspection Date:8/22/2024 8:43:50 AM o20240822084134.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Clearly visible in bottl Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.47 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:240 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 8:47:36 AM o20230717073018.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.74 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:380 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 9:10:00 AM o20220923091028.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.8 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in upstream manhole. units Temperature 64 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):41 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:570 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 9:01:46 AM o20210816085830.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.59 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:392 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 US1 City of Oshkosh Inspection Date:8/20/2020 1:06:54 PM o20200820130342.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.83 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 83 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:404 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 2:18:49 PM o20190917131642.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.03 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:404 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 10:15:43 AM o20181022101258.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.17 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 60 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:506 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 1:35:20 PM o20171017133104.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.57 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:537 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 US1 City of Oshkosh Inspection Date:10/10/2016 10:57:04 AM o20161010105436.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.54 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):37 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:654 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/22/2015 7:15:12 AM o20150922061944.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.84 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:459 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 12:40:37 PM o20141009113842.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.58 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 62 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:707 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:9/27/2012 8:31:15 AM o20120927073352.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.73 Detergents:0 ppm ppm mg/L 2011 gross solids follow-up. units Temperature 60 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:518 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 02-357 US1 City of Oshkosh Inspection Date:6/20/2012 8:08:37 AM o20120620070908.JPG Previous Rainfall (hrs):24-48Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Inspection Date:10/3/2011 10:30:08 AM o20111003103104.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.1 Detergents:0 ppm ppm mg/L Significant floatable debris in manhole. units Temperature 61 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/10/2011 8:51:00 AM o20110510085154.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted for upstream manhole prescreening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 City of Oshkosh o20250805152820.JPG Outfall Notes: Storm sewer from Nebraska St discharges to river from south. Outfall not located - pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Arch Material: CMP Diameter (in): Height/Depth (in):36 Width (in):58 Not Physically Located Easting:792,381 Northing:471,745 Longitude:-88.54036 Latitude:44.01362 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43625 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 3:31:46 PM Inspector:JCW o20250805152822.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sinkholes behind wall, likely settled over pipe. Gross solids and slightly elevated pH in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:Moderate Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 City of Oshkosh Inspection Date:9/10/2024 2:12:37 PM o20240910141136.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Sinkholes behind retaining wall. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:Moderate Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 2:01:19 PM o20230717124542.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 10:30:00 AM o20220824102800.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 10:33:32 AM o20210816103158.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 03-22 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 City of Oshkosh Inspection Date:8/19/2020 2:03:43 PM o20200819140018.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 11:27:00 AM Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 8:34:00 AM o20191008073428.jpg Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:9/18/2019 8:16:51 AM o20190918071544.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Floating gross solids (litter) and detergent in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 3 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 City of Oshkosh Inspection Date:10/22/2018 3:53:56 PM o20181022155222.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 3:22:08 PM o20171018151946.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 4:04:35 PM o20161018160304.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall not located and assumed submerged - screened upstream at 03-22 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:47:01 AM o20150923065132.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Significant sinking above suspected pipe. Outfall not located - screened at 03-22 US1. units Temperature --° F Graffiti:None Damage:Severe Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 4 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 City of Oshkosh Inspection Date:10/9/2014 9:47:52 AM o20141009084834.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-22 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:7/31/2013 12:40:04 PM o20130731114434.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2012 screening follow-up. Outfall not located. Outfall screened upstream at 03-22 US1. Gross solids in upstream mh. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 9:26:54 AM o20120927082846.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 03-22 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/20/2012 9:22:09 AM o20120620082248.JPG Previous Rainfall (hrs):24-48Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Page 5 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 City of Oshkosh Inspection Date:10/11/2011 9:03:10 AM o20111011090250.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged and not physically located. Outfall screened upstream at 03-22 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:8/18/2010 10:26:01 AM o20100818101918.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-22 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/10/2009 Osh09_DSCN6765.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 6 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 US1 City of Oshkosh o20250805153006.JPG Outfall Notes: Upstream catchbasin located approx 55 ft S of outfall 03-22. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:792,376 Northing:471,694 Longitude:-88.54038 Latitude:44.01348 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: N/A NR 216 Class: Inspection Date:8/5/2025 3:34:32 PM Inspector:JCW o20250805153016.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-93 Time Collected:15:29 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):9.03 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Slightly elevated pH likely from algae in river. Floating gross solids (litter) in manhole. units Temperature (field):82 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):47 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):363 µS/cm 2025 Page 1 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 US1 City of Oshkosh Inspection Date:9/10/2024 2:16:02 PM o20240910141348.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.7 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:380 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 2:03:38 PM o20230717124716.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.61 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):41 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:162 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 10:31:00 AM o20220824102900.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.54 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:395 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 10:36:24 AM o20210816103330.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.74 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):49 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:322 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 US1 City of Oshkosh Inspection Date:8/19/2020 2:04:58 PM o20200819140108.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.13 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Elevated pH seemed widespread in river. units Temperature 84 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:338 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 11:28:50 AM o20191105112834.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 8:35:00 AM o20191008073520.jpg Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.58 Detergents:1.2 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. Floating gross solids (litter) in manhole. units Temperature 56 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:381 µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:9/18/2019 8:19:32 AM o20190918071726.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.64 Detergents:1 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) and detergent in manhole. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):49 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:372 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 3 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 US1 City of Oshkosh Inspection Date:10/22/2018 3:58:28 PM o20181022155408.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.68 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 55 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):49 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:355 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 3:25:56 PM o20171018152158.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.32 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:422 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 4:06:54 PM o20161018160430.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.15 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:403 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:51:33 AM o20150923065324.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.44 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):46 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:354 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 4 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 US1 City of Oshkosh Inspection Date:10/9/2014 9:52:24 AM o20141009085040.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.79 Detergents:0 ppm ppm mg/L Floatable litter in catchbasin. units Temperature 57 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:442 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:7/31/2013 12:42:35 PM o20130731114610.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.95 Detergents:0 ppm ppm mg/L 2012 screening follow-up. Significant gross solids - similar to previous years. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:450 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 9:27:45 AM o20120927082922.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.32 Detergents:0 ppm ppm mg/L 2011 gross solids follow-up. units Temperature 59 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:398 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/20/2012 9:24:19 AM o20120620082508.JPG Previous Rainfall (hrs):24-48Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):46 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Page 5 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-22 US1 City of Oshkosh Inspection Date:10/11/2011 9:05:50 AM o20111011090446.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.13 Detergents:-- ppm ppm mg/L 2010 screening follow-up. No significant change in volume of floatable debris. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):37 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/26/2011 11:19:00 AM o20110526111930.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/18/2010 10:29:59 AM o20100818102410.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.38 Detergents:0 ppm ppm mg/L Severe floatable debris in catchbasin. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/10/2009 Osh09_DSCN6768.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.3 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles). Significant floatables in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 6 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 City of Oshkosh o20250805151158.JPG Outfall Notes: Storm sewer from S Main St discharges to river from south. Outfall not located - pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:793,077 Northing:471,421 Longitude:-88.53772 Latitude:44.01274 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43584 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 3:17:22 PM Inspector:JCW o20250805151200.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 03-35 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 City of Oshkosh Inspection Date:9/19/2024 7:08:43 AM o20240919070528.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 3:03:56 PM o20230717134840.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 10:18:00 AM o20220824101500.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 10:47:35 AM o20210816104428.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 City of Oshkosh Inspection Date:8/19/2020 2:40:57 PM o20200819143634.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 11:44:00 AM o20191105114512.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. Floating gross solids (litter) and detergent in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 8:29:12 AM o20191008072714.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Detergent detection follow-up. Limited screening conducted beyond sampling. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:9/18/2019 8:05:22 AM o20190918070310.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) and detergent in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 3 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 City of Oshkosh Inspection Date:10/22/2018 3:27:47 PM o20181022152608.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 3:15:43 PM o20171018150844.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 9:52:05 AM o20161010094930.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:34:32 AM o20150923063720.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 03- 35 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 4 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 City of Oshkosh Inspection Date:10/9/2014 10:33:07 AM o20141009093222.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-35 US1 units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:7/31/2013 12:30:28 PM o20130731113304.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2012 screening follow-up. Outfall not located. Outfall screened upstream at 03-35 US1. Gross solids in upstrem mh. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 9:13:17 AM o20120927081506.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 03-35 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/20/2012 9:06:10 AM o20120620080844.JPG Previous Rainfall (hrs):24-48Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Page 5 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 City of Oshkosh Inspection Date:10/11/2011 9:36:03 AM o20111011093254.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged and not physically located. Outfall screened upstream at 03-35 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:8/18/2010 9:27:46 AM o20100818092204.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-35 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/10/2009 Osh09_DSCN6761.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-35 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 6 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 US1 City of Oshkosh o20250805151228.JPG Outfall Notes: Upstream manhole located approx 20 ft WSW of outfall 03-35. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,049 Northing:471,407 Longitude:-88.53782 Latitude:44.01270 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 03-35 NR 216 Class: Inspection Date:8/5/2025 3:18:17 PM Inspector:JCW o20250805151234.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-84 Time Collected:15:15 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.98 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):37 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):419 µS/cm 2025 Page 1 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 US1 City of Oshkosh Inspection Date:9/19/2024 7:09:59 AM o20240919070618.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.59 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:374 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 3:06:44 PM o20230717134952.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.75 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):34 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:396 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 10:19:00 AM o20220824101600.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.1 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:593 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 10:48:38 AM o20210816104502.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.76 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:349 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 US1 City of Oshkosh Inspection Date:8/19/2020 2:41:48 PM o20200819143804.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.44 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Slightly elevated ammonia. units Temperature 85 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:346 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 11:45:22 AM o20191105114518.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted. Floating gross solids (litter) and detergent in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):30 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 8:30:16 AM o20191008072724.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.68 Detergents:1.3 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted beyond sampling. units Temperature 55 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:415 µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:9/18/2019 8:06:15 AM o20190918070320.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.47 Detergents:1.3 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) and detergent in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:389 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 3 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 US1 City of Oshkosh Inspection Date:10/22/2018 3:30:12 PM o20181022152746.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.81 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 56 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):41 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:338 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 3:16:37 PM o20171018151012.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.94 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:554 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 9:52:43 AM o20161010094958.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.54 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 63 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):32 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:391 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:36:00 AM o20150923063950.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.64 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):30 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:359 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 4 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 US1 City of Oshkosh Inspection Date:10/9/2014 10:35:52 AM o20141009093356.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.86 Detergents:0 ppm ppm mg/L Vegetative debris in photo from opening lid. units Temperature 58 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):32 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:476 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:7/31/2013 12:31:00 PM o20130731113346.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.47 Detergents:0 ppm ppm mg/L 2012 screening follow-up. Significant gross solids. Similar to previous years. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):33 Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:425 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 9:13:54 AM o20120927081522.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.42 Detergents:0 ppm ppm mg/L 2011 gross solids follow-up. units Temperature 59 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 3 Depth (in):31 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:723 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/20/2012 9:08:12 AM o20120620080918.JPG Previous Rainfall (hrs):24-48Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Page 5 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-35 US1 City of Oshkosh Inspection Date:10/11/2011 9:29:50 AM o20111011092832.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Severe Total Chlorine:0 Free Chlorine:0 pH:8.01 Detergents:-- ppm ppm mg/L 2010 screening follow-up. Floatable debris still present. Slight petroleum sheen. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):19 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/26/2011 11:23:00 AM o20110526112400.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/18/2010 9:32:06 AM o20100818092304.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.46 Detergents:0 ppm ppm mg/L Severe floatable debris in catchbasin. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):34 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/10/2009 Osh09_DSCN6763.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.23 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles). Significant floatables in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):33 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 6 of 6Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 City of Oshkosh o20240919064806.JPG Outfall Notes: 10th Ave storm sewer discharges to river from south. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: Cast Iron Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:794,054 Northing:470,796 Longitude:-88.53400 Latitude:44.01102 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43628 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 2:43:09 PM Inspector:JCW o20250805143812.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Railroad bridge area under construction and outfall typically fully submerged - screened upstream at 03-81 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 City of Oshkosh Inspection Date:9/19/2024 6:54:21 AM o20240919064816.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 2:52:22 PM o20230717133646.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 1:54:00 PM Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 11:09:51 AM o20210816110756.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 City of Oshkosh Inspection Date:8/19/2020 2:16:29 PM o20200819141442.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 3:00:32 PM o20190917135900.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 3:13:39 PM o20181022151216.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 2:50:50 PM o20171018144750.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. Ammonia, detergent and sheen in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 City of Oshkosh Inspection Date:10/10/2016 8:59:12 AM o20161010085808.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:10:20 AM o20150923061430.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 03- 81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 10:00:10 AM o20141009090032.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Obvious Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/11/2011 9:42:33 AM o20111011094236.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged and not physically located. Outfall screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 City of Oshkosh Inspection Date:8/18/2010 8:38:23 AM o20100818083116.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6745.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-81 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Obvious Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 US1 City of Oshkosh o20250805143816.JPG Outfall Notes: Upstream manhole located approx 204 ft SSW of outfall 03-81. Located behind railroad control shed. Intermediate area consists of open space, street right-of-way and railroad right-of-way. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,997 Northing:470,596 Longitude:-88.53422 Latitude:44.01047 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 03-81 NR 216 Class: Inspection Date:8/5/2025 2:44:01 PM Inspector:JCW o20250805143826.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-67 Time Collected:14:38 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.95 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):51 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):303 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 US1 City of Oshkosh Inspection Date:9/19/2024 6:55:52 AM o20240919065040.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:8.67 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Replacement lid too large for casting. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):51 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:419 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 2:55:35 PM o20230717133924.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.69 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Replacement lid too large for casting. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):50 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:401 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 1:55:00 PM o20220822135248.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.43 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:345 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 11:13:37 AM o20210816111026.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.56 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):56 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:317 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 US1 City of Oshkosh Inspection Date:8/19/2020 2:19:30 PM o20200819141648.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.09 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Elevated pH seemed widespread in river. units Temperature 84 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):50 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:327 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 3:03:50 PM o20190917140134.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.07 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):52 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:399 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 3:18:57 PM o20181022151626.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.62 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 57 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:357 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 2:55:07 PM o20171018145016.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.22 Detergents:0.8 ppm ppm mg/L Elevated ammonia and detergent in sample from manhole pool. Slight sheen observed on surface. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):50 Vegetation:None Benthic Growth:None Stains:None Ammonia:1 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:1020 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 US1 City of Oshkosh Inspection Date:10/10/2016 9:04:32 AM o20161010090136.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:Faint in bottle Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.41 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids and petroleum odor and sheen and elevated ammonia. units Temperature 63 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):46 Vegetation:None Benthic Growth:None Stains:None Ammonia:1 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:565 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:16:22 AM o20150923061754.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.32 Detergents:0 ppm ppm mg/L units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):52 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:1 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:638 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 10:07:49 AM o20141009090404.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.58 Detergents:0 ppm ppm mg/L Petroleum odor and sheen on surface. units Temperature 58 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 2 Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Obvious Gross Solids:Severe Non-illicit:None Conductivity:679 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/11/2011 9:46:04 AM o20111011094434.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.68 Detergents:-- ppm ppm mg/L 2010 screening follow-up. Floatable debris significantly reduced. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.25 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-81 US1 City of Oshkosh Inspection Date:5/26/2011 11:29:00 AM o20110526112952.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/18/2010 8:43:09 AM o20100818083958.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.63 Detergents:0 ppm ppm mg/L Petroleum odor likely from residual petroleum in pipes after 2009 jetting. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):47 Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6747.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Easily detected Color:Faint in bottle Turbidity:None Floatables:Severe Total Chlorine:0 Free Chlorine:0 pH:6.98 Detergents:0 ppm ppm mg/L Diesel/oil odor, sheen on surface. Floatables with grease. Brown/gray color. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Obvious Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 City of Oshkosh o20250805142642.JPG Outfall Notes: Storm sewer from South Park Ave discharges to lake from south wall of boat launch. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):13 Width (in):22 Not Physically Located Easting:793,907 Northing:469,171 Longitude:-88.53456 Latitude:44.00656 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43642 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 2:33:23 PM Inspector:JCW o20250805142658.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged in boat ramp area and not located - screened upstream at 03- 119 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 City of Oshkosh Inspection Date:9/10/2024 11:16:29 AM o20240910111118.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 2:40:00 PM o20230717132448.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 12:04:00 PM o20220822115730.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. Detergent in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 1:21:13 PM o20210816131918.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 City of Oshkosh Inspection Date:10/22/2018 2:02:38 PM o20181022140104.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 2:44:53 PM Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 8:46:57 AM o20161010084558.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:00:50 AM o20150923060350.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 03- 119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 City of Oshkosh Inspection Date:8/18/2010 7:32:47 AM o20100818072558.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-119 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6741.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition: Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 US1 City of Oshkosh o20250805142854.JPG Outfall Notes: Upstream manhole located approx 245 ft WSW of outfall 03-119. Intermediate area consists of street right-of-way and paved parking area with no observed inlets. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,673 Northing:469,097 Longitude:-88.53545 Latitude:44.00636 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 03-119 NR 216 Class: Inspection Date:8/5/2025 2:34:10 PM Inspector:JCW o20250805142858.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-48 Time Collected:14:29 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.29 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):29 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):340 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 US1 City of Oshkosh Inspection Date:9/10/2024 11:17:22 AM o20240910111338.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.56 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):30 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:398 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 2:43:38 PM o20230717132712.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.25 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):28 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:117 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 12:05:00 PM o20220822120016.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.89 Detergents:0.2 ppm ppm mg/L Sample collected from submerged pool in manhole. Detergent detected in sample. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:312 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 1:26:50 PM o20210816132344.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.41 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):34 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:372 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 US1 City of Oshkosh Inspection Date:10/22/2018 2:06:18 PM o20181022140340.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.72 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 60 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):32 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:Moderate Conductivity:773 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 2:45:31 PM o20171018144002.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.18 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):27 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:774 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 8:50:36 AM o20161010084816.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.98 Detergents:0 ppm ppm mg/L units Temperature 63 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):25 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:Slight Conductivity:781 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 7:05:01 AM o20150923060646.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.44 Detergents:0 ppm ppm mg/L units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):29 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:516 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-119 US1 City of Oshkosh Inspection Date:8/18/2010 7:36:59 AM o20100818072942.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:Faint in bottle Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.06 Detergents:0 ppm ppm mg/L units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):29 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:Slight Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6743.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.87 Detergents:0 ppm ppm mg/L units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):27 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 City of Oshkosh o20250805135512.JPG Outfall Notes: Storm sewer from 16th Ave discharges to lake from west. Outfall fully submerged. GPS coordinates approximate. Pipe info from MS4 map. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):33 Width (in):49 Not Physically Located Easting:793,277 Northing:468,020 Longitude:-88.53695 Latitude:44.00341 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-44173 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 2:02:20 PM Inspector:JCW o20250805135514.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 03-173 US1. Gross solids and elevated pH in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 City of Oshkosh Inspection Date:9/10/2024 10:46:03 AM o20240910104228.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. Floating gross solids (litter) in upstream manhole. Chlorine due WM break. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 3:31:00 PM o20230717141404.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. High ammonia and floating gross solids (algae) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 11:05:00 AM o20220822110242.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:Moderate Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. Dense algae obstructing view. Floating gross solids in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 1:06:56 PM o20210816130634.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 City of Oshkosh Inspection Date:9/24/2020 8:57:20 AM o20200924090116.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:QAL 2020 Inspection Date:11/5/2019 1:14:00 PM o20191105131408.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 03-173 US1. Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 8:00:16 AM o20191008065912.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. Floating gross solids (litter) in manhole. Detergent detected. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 1:18:45 PM o20181022131820.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 City of Oshkosh Inspection Date:10/18/2017 2:27:05 PM o20171018142348.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US2. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 8:27:25 AM o20161010082552.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-173 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 6:48:56 AM o20150923054658.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located during this screening - screened at 13- 173 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/7/2014 1:47:08 PM o20141007124746.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 13-173 US2. Pipe approx 5" below water surface. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 City of Oshkosh Inspection Date:10/11/2011 10:11:07 AM o20111011101022.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged. Outfall screened upstream at 03-173 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:8/17/2010 2:04:29 PM o20100817135838.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-173 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 US1 City of Oshkosh o20250805135524.JPG Outfall Notes: Upstream manhole located approx 18 ft W of outfall 03-173. Intermediate area consists of shoreline. Manhole located between railroad tracks and shoreline. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,261 Northing:468,022 Longitude:-88.53701 Latitude:44.00341 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 03-173 NR 216 Class: Inspection Date:8/5/2025 2:03:22 PM Inspector:JCW o20250805135528.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-07 Time Collected:13:55 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):9.14 Detergents:0 ppm ppm mg/L Notes:Floating gross solids (litter) and elevated pH in manhole sample. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):39 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):345 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 US1 City of Oshkosh Inspection Date:9/10/2024 10:48:02 AM o20240910104332.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0.5 Free Chlorine:0 pH:7.69 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole with chlorine from watermain break. Floating gross solids (litter) in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):41 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:462 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 3:31:38 PM o20230717141446.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Easily detected Color:None Turbidity:None Floatables:Severe Total Chlorine:0 Free Chlorine:0 pH:8.07 Detergents:0 ppm ppm mg/L 6" algae mat floating in manhole. Sample collected from submerged pool in manhole. High ammonia in sample. Strong odor from decomposing algae. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:6 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:481 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 11:06:00 AM o20210816130728.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.8 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:450 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 1:13:31 PM o20210816130728.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.46 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:337 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 US1 City of Oshkosh Inspection Date:9/24/2020 8:58:24 AM o20200924090226.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.54 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:405 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:QAL 2020 Inspection Date:11/5/2019 1:15:28 PM o20191105131426.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):32 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 8:01:54 AM o20191008070022.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.64 Detergents:1 ppm ppm mg/L Manhole 03-173 US2 inaccessible (behind locked gate). Floating gross solids (litter) in manhole. Detergent detected. units Temperature 53 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 4 Depth (in):38 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:592 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 1:24:38 PM o20181022132154.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.18 Detergents:0 ppm ppm mg/L Manhole 03-173 US2 inaccessible (behind locked gate). Floating gross solids (litter) in manhole, including 2 syringes. units Temperature 59 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1229 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-173 US1 City of Oshkosh Inspection Date:8/17/2010 2:07:11 PM o20100817135854.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Lid bolts rusted tight - could not access. Screened upstream at 03-173 US2. units Temperature --° F Graffiti:None Damage:Moderate Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-477 City of Oshkosh o20250805140740.JPG Outfall Notes: Storm sewer from E 15th Ave discharges to lake from west. Replaces outfall 03-306 (2012). Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):72 Height/Depth (in): Width (in): Not Physically Located Easting:793,453 Northing:468,409 Longitude:-88.53628 Latitude:44.00447 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43408 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 2:10:54 PM Inspector:JCW o20250805140750.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Moderate Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged - screened upstream at 03-477 US1. Significant algae bloom in bay surrounding pipe. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-477 City of Oshkosh Inspection Date:9/10/2024 11:00:27 AM o20240910105844.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-477 US1.Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:10/22/2018 1:40:36 PM o20181022133918.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 03-306 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:8/17/2010 2:28:30 PM o20100817142148.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 03-306 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-477 US1 City of Oshkosh o20250805140916.JPG Outfall Notes: Upstream manhole located approx 63 ft W of outfall 03-477 (formerly 03-306). Intermediate area consists of open space. May have been upgraded prior to 2018 screening. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,401 Northing:468,409 Longitude:-88.53648 Latitude:44.00448 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 03-477 NR 216 Class: Inspection Date:8/5/2025 2:13:18 PM Inspector:JCW o20250805140922.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-01 Time Collected:14:10 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.97 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):84 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):73 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):301 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-477 US1 City of Oshkosh Inspection Date:9/10/2024 11:03:28 AM o20240910110052.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.16 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):75 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:361 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:10/22/2018 1:41:52 PM o20181022134128.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.55 Detergents:0 ppm ppm mg/L Sample collected from submerged pool. units Temperature 57 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):66 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:368 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:8/17/2010 2:28:30 PM o20100817142402.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.55 Detergents:0 ppm ppm mg/L Broken manhole rings allow materials to enter manhole below casting. units Temperature 76 ° F Graffiti:None Damage:Minor Erosion:None Deposition:None 0 Depth (in):13 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-604 City of Oshkosh o20250805141620.JPG Outfall Notes: Storm sewer from E 14th Ave discharges to lake from west. Replaces outfall 03-293 (2018). Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):60 Width (in):96 Not Physically Located Easting:793,596 Northing:468,699 Longitude:-88.53574 Latitude:44.00527 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-44082 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 2:19:36 PM Inspector:JCW o20250805141632.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 03-604 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-604 City of Oshkosh Inspection Date:7/17/2023 2:29:30 PM o20230717131418.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-604 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 11:21:00 AM o20220822111642.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:Moderate Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 03-604 US1. Dense algae obstructing view. Ammonia in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:10/10/2016 8:37:23 AM o20161010083458.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 03-293 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None Depth (in):31 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:8/17/2010 3:02:36 PM o20100817145430.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 03-293 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None 0 Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-604 City of Oshkosh Inspection Date:9/9/2009 Osh09_DSCN6736.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 03-293 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None 0 Depth (in):32 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-604 US1 City of Oshkosh o20250805141850.JPG Outfall Notes: Upstream manhole located approx 51 ft NW of outfall 03-604 (formerly 03-293). Intermediate area consists of vegetated roadside shoulder. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,536 Northing:468,753 Longitude:-88.53597 Latitude:44.00542 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 03-293 NR 216 Class: Inspection Date:8/5/2025 2:24:22 PM Inspector:JCW o20250805141856.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-10 Time Collected:14:19 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.31 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Slightly elevated ammonia likely from algae bloom in lake. units Temperature (field):84 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):110 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0.5 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):238 µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-604 US1 City of Oshkosh Inspection Date:7/17/2023 2:34:10 PM o20230717131656.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.8 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):112 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:429 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 11:22:00 AM o20220822111818.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.67 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Elevated ammonia in sample. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:1 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:428 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:10/10/2016 8:41:32 AM o20161010083910.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.46 Detergents:0 ppm ppm mg/L units Temperature 62 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):33 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:386 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:8/17/2010 3:05:51 PM o20100817145804.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.39 Detergents:0 ppm ppm mg/L units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:Slight Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 03-604 US1 City of Oshkosh Inspection Date:9/9/2009 Osh09_DSCN6739.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.82 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles) units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 City of Oshkosh o20250925124628.JPG Outfall Notes: Storm sewer from Rockwell Ave discharges to river from east. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:788,227 Northing:476,099 Longitude:-88.55616 Latitude:44.02556 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43871 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 12:50:46 PM Inspector:JCW o20250925124630.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 05-14 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 City of Oshkosh Inspection Date:9/3/2024 2:09:32 PM o20240903140714.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 10:29:29 AM o20230717091026.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/19/2022 2:10:00 PM o20220919140954.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 3:16:07 PM o20210816151250.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 City of Oshkosh Inspection Date:8/19/2020 3:39:27 PM o20200819153632.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 2:47:43 PM o20190918134402.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 5:09:36 PM o20181022170942.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 3:57:26 PM o20171017155038.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 City of Oshkosh Inspection Date:10/10/2016 3:43:20 PM o20161010154044.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 05-14 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/24/2015 10:30:54 AM o20150924093340.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 05- 14 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:8/25/2010 2:37:24 PM o20100825142900.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 05-14 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6696.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 05-14 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 US1 City of Oshkosh o20250925124734.JPG Outfall Notes: Upstream manhole located approx 30 ft ENE of outfall 05-14. Intermedate area consists of street right-of-way and shoreline. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:788,252 Northing:476,111 Longitude:-88.55607 Latitude:44.02559 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 05-14 NR 216 Class: Inspection Date:9/25/2025 12:51:33 PM Inspector:JCW o20250925124740.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-66 Time Collected:12:48 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.05 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):73 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):44 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):373 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 US1 City of Oshkosh Inspection Date:9/3/2024 2:15:07 PM o20240903141300.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Severe Total Chlorine:0 Free Chlorine:0 pH:8.85 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 82 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):45 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:289 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 10:30:04 AM o20230717091240.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.96 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:362 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/19/2022 2:17:00 PM o20220919141718.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.58 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):20 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:Slight Conductivity:672 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 3:16:49 PM o20210816151352.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 85 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):46 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:367 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 US1 City of Oshkosh Inspection Date:8/19/2020 3:39:59 PM o20200819154014.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.94 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 87 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1577 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 2:48:24 PM o20190918134540.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.9 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):45 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:383 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 5:15:36 PM o20181022171308.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:Cloudy Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.59 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 56 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:361 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 3:58:36 PM o20171017155256.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.93 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:886 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-14 US1 City of Oshkosh Inspection Date:10/10/2016 3:46:48 PM o20161010154428.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.69 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):41 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:660 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/24/2015 10:36:18 AM o20150924093714.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.98 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:424 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-670 City of Oshkosh o20250925125830.JPG Outfall Notes: Storm sewer from High Ave discharges to river from east. Replaces outfall 05-216 (2019). Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):54 Height/Depth (in): Width (in): Not Physically Located Easting:787,570 Northing:477,350 Longitude:-88.55866 Latitude:44.02899 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43736 Non-Priority Major Outfall NR 216 Class: Inspection Date:9/25/2025 1:01:29 PM Inspector:JCW o20250925125848.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-69 Time Collected:13:00 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.48 Detergents:0 ppm ppm mg/L Notes:Outfall fully submerged and inaccessible from shore. Upstream manhole(s) inside security fence. Sample collected from water near outfall. units Temperature (field):74 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):407 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 05-670 City of Oshkosh Inspection Date:8/19/2020 4:08:22 PM o20200819160816.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located. Upstream manhole inside locked fence - no sample collected. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/24/2015 10:08:00 AM _Submerged.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 05- 216 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:8/26/2010 8:54:01 AM o20100826084708.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 05-216 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 City of Oshkosh o20250805100026.JPG Outfall Notes: W 4th Ave storm sewer discharges to river from south. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:789,805 Northing:472,710 Longitude:-88.55016 Latitude:44.01627 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43544 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 10:05:07 AM Inspector:JCW o20250805100034.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 06-52 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 City of Oshkosh Inspection Date:9/10/2024 2:32:52 PM o20240910143014.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 1:42:08 PM o20230717122710.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 10:50:00 AM o20220824104900.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 2:06:06 PM o20210816140546.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 City of Oshkosh Inspection Date:8/19/2020 11:32:11 AM o20200819113108.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 8:43:23 AM o20190918074208.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 4:31:59 PM o20181022163054.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 11:31:01 AM Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 City of Oshkosh Inspection Date:10/18/2016 2:57:41 PM o20161018145652.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 8:40:05 AM o20150923074404.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 06- 52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 9:32:21 AM o20141009083144.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/11/2011 11:06:46 AM o20111011110724.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged and not physically located. Outfall screened upstream at 06-52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 City of Oshkosh Inspection Date:8/18/2010 12:57:36 PM o20100818124946.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 06-52 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 US1 City of Oshkosh o20250805100050.JPG Outfall Notes: Upstream manhole located approx 34 ft SW of outfall 06-52. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:789,787 Northing:472,689 Longitude:-88.55022 Latitude:44.01621 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 06-52 NR 216 Class: Inspection Date:8/5/2025 10:05:49 AM Inspector:JCW o20250805100054.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-51 Time Collected:10:01 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.83 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Grass in photo from manhole entry. units Temperature (field):82 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):45 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):341 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 US1 City of Oshkosh Inspection Date:9/10/2024 2:33:39 PM o20240910143108.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.83 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:206 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 1:44:31 PM o20230717122814.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.8 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:370 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 10:51:00 AM o20220824104920.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.67 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:374 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 2:08:38 PM o20210816140640.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.84 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 82 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):37 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:347 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 US1 City of Oshkosh Inspection Date:8/19/2020 11:35:26 AM o20200819113240.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.11 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Elevated pH seemed widespread in river. units Temperature 81 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:332 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 8:45:58 AM o20190918074352.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.4 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:391 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 4:34:14 PM o20181022163150.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.77 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 54 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:348 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 11:33:33 AM o20171018112938.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.39 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:403 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 US1 City of Oshkosh Inspection Date:10/18/2016 3:00:00 PM o20161018145924.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.02 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:418 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 8:42:53 AM o20150923074542.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.74 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:351 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 9:37:13 AM o20141009083526.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.82 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. Filter fabric installed in inlet. units Temperature 56 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:471 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/11/2011 11:09:29 AM o20111011110824.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.13 Detergents:-- ppm ppm mg/L 2010 screening follow-up. Floatable debris significantly reduced. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-52 US1 City of Oshkosh Inspection Date:5/26/2011 1:05:00 PM o20110526130522.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/18/2010 1:00:07 PM o20100818125018.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.98 Detergents:0 ppm ppm mg/L Significant floatable debris in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):41 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 City of Oshkosh o20250805094910.JPG Outfall Notes: Storm sewer from Ohio St discharges to river from west. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):38 Width (in):60 Not Physically Located Easting:789,346 Northing:473,231 Longitude:-88.55190 Latitude:44.01770 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43725 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 9:54:39 AM Inspector:JCW o20250805094914.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 06-810 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 City of Oshkosh Inspection Date:9/10/2024 2:48:17 PM o20240910144446.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. Slightly elevated ammonia - possibly algae. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 1:29:54 PM o20230717121140_1.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 11:01:00 AM o20220824105932.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 2:19:36 PM o20210816141900.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 City of Oshkosh Inspection Date:8/19/2020 11:18:34 AM o20200819111708.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 9:09:25 AM o20190918080814.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 4:42:27 PM o20181022164110.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 11:21:24 AM o20171018111512.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 City of Oshkosh Inspection Date:10/18/2016 2:44:09 PM o20161018144322.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 9:09:50 AM o20150923081344.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 06- 810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:8/18/2010 1:15:26 PM o20100818130938.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 06-810 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/10/2009 Osh09_DSCN6798.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 US1 City of Oshkosh o20250805094950.JPG Outfall Notes: Upstream manhole located approx 77 ft SW of outfall 06-810. Intermediate area consists of open area. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:789,292 Northing:473,167 Longitude:-88.55211 Latitude:44.01752 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 06-810 NR 216 Class: Inspection Date:8/5/2025 9:55:45 AM Inspector:JCW o20250805095002.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-68 Time Collected:09:50 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.69 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):81 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):53 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):340 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 US1 City of Oshkosh Inspection Date:9/10/2024 2:48:58 PM o20240910144558.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Clearly visible in bottl Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:8.05 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Slightly elevated ammonia - likely blue-green algae. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):54 Vegetation:None Benthic Growth:None Stains:None Ammonia:1 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:393 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 1:30:31 PM o20230717121242.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.64 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):52 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:406 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 11:02:00 AM o20220824110016.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.4 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:391 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 2:20:40 PM o20210816142010.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.86 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 82 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):58 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:331 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 US1 City of Oshkosh Inspection Date:8/19/2020 11:21:56 AM o20200819111844.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.99 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 80 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:343 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 9:12:03 AM o20190918080922.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.62 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:387 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 4:45:48 PM o20181022164226.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.7 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 55 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):58 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:370 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 11:23:20 AM o20171018111612.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.85 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):50 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:174 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-810 US1 City of Oshkosh Inspection Date:10/18/2016 2:47:47 PM o20161018144430.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.93 Detergents:0 ppm ppm mg/L units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):52 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:400 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 9:13:00 AM o20150923081432.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.39 Detergents:0 ppm ppm mg/L units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:372 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:8/18/2010 1:18:51 PM o20100818131246.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.68 Detergents:0 ppm ppm mg/L units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):55 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/10/2009 Osh09_DSCN6801.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.42 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles) units Temperature 82 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):6 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 City of Oshkosh o20240910082134.JPG Outfall Notes: Storm sewer from Josslyn St discharges to stream from west. Exits wall approx 9' north of fence. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:786,270 Northing:473,751 Longitude:-88.56360 Latitude:44.01912 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44218 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 10:32:23 AM Inspector:JCW Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall not screened due to potential illicit activity in area - screened upstream at 06- 829 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 City of Oshkosh Inspection Date:9/10/2024 8:27:04 AM o20240910082140.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located this visit - screened upstream at 06-829 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/1/2023 3:11:33 PM o20230801141120.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-829 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 1:58:00 PM o20220824135212.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-829 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 10:19:04 AM o20210817101734.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-829 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 City of Oshkosh Inspection Date:8/19/2020 10:50:40 AM o20200819105038.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 06-829 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:10/8/2019 4:16:54 PM o20191008151534.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 06-829 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/25/2018 1:36:22 PM o20181025133432.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 06-829 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/7/2014 10:34:09 AM o20141007093522.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 06-829 US1. Manhole lid in water near end of pipe. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 City of Oshkosh Inspection Date:9/5/2013 9:25:55 AM o20130905082920.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2012 screening follow-up. Outfall fully submerged. Outfall screened upstream at 06-829 US1. Gross solids in upstream mh. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):45 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 12:33:16 PM o20120927113654.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 06-829 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/13/2012 2:26:38 PM o20120613132730.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 US1 City of Oshkosh o20250917103118.JPG Outfall Notes: Upstream manhole located approx 360 ft W of outfall 06-829. Intermediate area consists of multifamily residential and commercial properties. Two downstream manholes not located. High school located immediately upstream. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:785,907 Northing:473,756 Longitude:-88.56497 Latitude:44.01913 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 06-831 NR 216 Class: Inspection Date:9/17/2025 10:35:09 AM Inspector:JCW o20250917103124.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250917-65 Time Collected:10:32 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.82 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):73 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):35 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1667 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 US1 City of Oshkosh Inspection Date:9/10/2024 8:29:16 AM o20240910082722.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.73 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1216 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/1/2023 3:15:50 PM o20230801141440.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.63 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:Slight Conductivity:927 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 1:59:00 PM o20220824135512.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1415 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 10:24:05 AM o20210817102130.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.3 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1449 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 US1 City of Oshkosh Inspection Date:8/19/2020 10:56:12 AM o20200819105348.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.57 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 80 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1508 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:10/8/2019 4:19:45 PM o20191008151850.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.47 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 64 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1533 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/25/2018 1:40:19 PM o20181025133814.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.64 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 58 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1550 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/7/2014 10:41:53 AM o20141007094030.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.82 Detergents:0 ppm ppm mg/L Vegetative debris from opening lid. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):30 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1715 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-829 US1 City of Oshkosh Inspection Date:9/5/2013 9:16:05 AM o20130905082002.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.7 Detergents:0 ppm ppm mg/L 2012 screening follow-up. Significant gross solids in manhole - similar to previous years. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:1666 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 12:28:37 PM o20120927113044.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.72 Detergents:0 ppm ppm mg/L units Temperature 64 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):30 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1583 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:6/13/2012 2:30:25 PM o20120613133100.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.58 Detergents:0 ppm ppm mg/L Gross solids pre-screening. Bottles in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):37 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:1765 µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-2296 City of Oshkosh o20250805100706.JPG Outfall Notes: Storm sewer from Michigan St discharges to river from south. Outfall fully submerged - dimensions approximate. (Formerly 06-2380.) Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Box Material: RCP Diameter (in): Height/Depth (in):60 Width (in):96 Not Physically Located Easting:789,894 Northing:472,653 Longitude:-88.54982 Latitude:44.01611 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43444 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/5/2025 10:11:14 AM Inspector:JCW o20250805100740.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged - screened upstream at 06-2296 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):54 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-2296 City of Oshkosh Inspection Date:8/19/2020 11:40:44 AM o20200819113908.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened upstream at 06-2380 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):54 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/23/2015 8:52:13 AM o20150923075720.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged - screened at 06-2380 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):62 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-2296 US1 City of Oshkosh o20250805100930.JPG Outfall Notes: Upstream manhole located approx 115 ft SW of outfall 06-2296 (formerly 06-2380). Intermediate area consists of open space and sidewalk. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:789,820 Northing:472,567 Longitude:-88.55010 Latitude:44.01587 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: 06-2380 NR 216 Class: Inspection Date:8/5/2025 10:14:14 AM Inspector:JCW o20250805100938.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-46 Time Collected:10:10 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.61 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):81 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):58 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):385 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-2296 US1 City of Oshkosh Inspection Date:8/19/2020 11:42:01 AM o20200819114140.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.98 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 81 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:338 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/23/2015 9:00:36 AM o20150923080126.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.38 Detergents:0 ppm ppm mg/L units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):56 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:Slight Conductivity:328 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-2947 City of Oshkosh o20250807095400.JPG Outfall Notes: Storm sewer from Marys Dr discharges to SE corner of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:771,766 Northing:471,491 Longitude:-88.61872 Latitude:44.01287 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43821 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 9:57:24 AM Inspector:JCW o20250807095408.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron wet, but no collectable flow at time of inspection. 1" joint displacement. Minor depostiion on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:Minor Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):1 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-2947 City of Oshkosh Inspection Date:8/23/2022 10:02:00 AM o20220823100122.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L End of pipe dry at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-3027 City of Oshkosh o20250807110050.JPG Outfall Notes: Storm sewer from W. 9th Ave discharges to stream from west. Replaces outfall 06-1132 (2021). Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):43 Width (in):68 Not Physically Located Easting:776,479 Northing:470,797 Longitude:-88.60080 Latitude:44.01099 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44165 Priority Outfall NR 216 Class: Inspection Date:8/7/2025 11:03:19 AM Inspector:JCW o20250807110100.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, significant flow Odor:None Color:None Turbidity:None Floatables:None Sample ID:250807-09 Time Collected:11:02 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.72 Detergents:0 ppm ppm mg/L Notes:Sample collected from pipe flow. units Temperature (field):80 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):3 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):941 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 06-3027 City of Oshkosh Inspection Date:7/19/2023 3:43:24 PM o20230719142846.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.33 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow immediately downstream from pipe. units Temperature 81 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):3 Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1103 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/23/2022 12:12:00 PM o20220823121104.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:Easily detected Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.12 Detergents:1 ppm ppm mg/L Sample collected from submerged flow at end of pipe. Detergent detected in sample. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:433 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 09-107 City of Oshkosh o20250805105836.JPG Outfall Notes: Box culvert from Iowa St discharges to river from south. Combines former individual outfalls 09-101a, - 101b and -101c. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Box Material: RCP Diameter (in): Height/Depth (in):54 Width (in):120 Not Physically Located Easting:790,643 Northing:471,886 Longitude:-88.54697 Latitude:44.01401 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44094 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/5/2025 11:02:39 AM Inspector:JCW o20250805105842.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-94 Time Collected:10:59 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.88 Detergents:0 ppm ppm mg/L Notes:Outfall fully submerged. Upstream manhole inaccessible inside construction zone - sample collected from pool inside culvert. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):919 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 09-107 City of Oshkosh Inspection Date:8/19/2020 12:48:19 PM o20200819124636.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.29 Detergents:0 ppm ppm mg/L Sample collected from submerged flow leaving culvert. Elevated pH seemed widespread in river. units Temperature 86 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:326 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:10/8/2019 8:50:48 AM o20191008075122.JPG Previous Rainfall (hrs):48-72Flow:Submerged, significant flow Odor:None Color:None Turbidity:Cloudy Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.89 Detergents:0 ppm ppm mg/L Sample collected from submerged flow. units Temperature 56 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:Severe Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1257 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-177 City of Oshkosh o20250805082218.JPG Outfall Notes: Storm sewer from Siewert Tr and Hazel St discharges to lake from west. Outfall fully submerged. GPS coordinates approximate. Pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:797,689 Northing:477,200 Longitude:-88.52019 Latitude:44.02859 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43857 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 8:27:24 AM Inspector:JCW o20250805082230.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 11-177 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-177 City of Oshkosh Inspection Date:8/22/2024 8:10:57 AM o20240822080854.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-177 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 7:53:09 AM o20230717063750.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-177 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 10:10:00 AM o20220923100858.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-177 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 8:11:25 AM o20210816080850.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 11-177 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-177 City of Oshkosh Inspection Date:8/20/2020 1:55:03 PM o20200820135154.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-177 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 8:55:55 AM o20190917075538.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-177 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/3/2011 4:12:24 PM o20111003161156.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-177 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/10/2011 12:05:00 PM o20110510120530.JPG Previous Rainfall (hrs):0-24Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-177 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-177 US1 City of Oshkosh o20250805082258.JPG Outfall Notes: Upstream catchbasin located approx 45 ft WSW of outfall 11-177. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:797,641 Northing:477,197 Longitude:-88.52038 Latitude:44.02859 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 11-177 NR 216 Class: Inspection Date:8/5/2025 8:28:01 AM Inspector:JCW o20250805082312.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-54 Time Collected:08:24 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.53 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):77 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):42 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):381 µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-177 US1 City of Oshkosh Inspection Date:8/22/2024 8:12:19 AM o20240822080918.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:8.62 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:349 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 7:55:24 AM o20230717063904.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.93 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):43 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:382 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 10:21:00 AM o20220923101908.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.88 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):45 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:409 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 8:13:29 AM o20210816081106.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.11 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):48 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:372 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-177 US1 City of Oshkosh Inspection Date:8/20/2020 1:55:38 PM o20200820135226.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.85 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 85 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):45 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:342 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 8:58:14 AM o20190917075612.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.13 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):47 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:316 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/3/2011 4:15:48 PM o20111003161244.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.03 Detergents:0 ppm ppm mg/L units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/10/2011 12:03:00 PM o20110510120546.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted for upstream manhole prescreening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 City of Oshkosh o20250805080746.JPG Outfall Notes: Baldwin Ave storm sewer discharges to lake from west. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: Cast Iron Diameter (in):42 Height/Depth (in): Width (in): Not Physically Located Easting:797,526 Northing:478,061 Longitude:-88.52081 Latitude:44.03096 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43689 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 8:14:14 AM Inspector:JCW o20250805080754.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 11-376 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 City of Oshkosh Inspection Date:8/22/2024 7:33:35 AM o20240822073244.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 7:40:49 AM o20230717062522.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 10:56:00 AM o20220923105534.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 7:57:45 AM o20210816075628.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 City of Oshkosh Inspection Date:8/20/2020 2:10:06 PM o20200820140432.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 8:43:35 AM o20190917074332.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 9:42:07 AM o20181022094126.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 1:03:56 PM o20171017130204.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 City of Oshkosh Inspection Date:10/19/2016 7:43:58 AM o20161019074246.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/24/2015 9:06:24 AM o20150924081044.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 11- 376 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:Moderate Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 1:35:21 PM o20141009123438.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-376 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/4/2011 9:20:16 AM o20111004092048.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-376 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 City of Oshkosh Inspection Date:5/10/2011 12:22:00 PM o20110510122252.JPG Previous Rainfall (hrs):0-24Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-376 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:9/8/2009 Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition: Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 US1 City of Oshkosh o20250805080838.JPG Outfall Notes: Upstream manhole located approx 82 ft W of outfall 11-376. Intermediate area consists of open space in park. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - brick Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:797,423 Northing:478,057 Longitude:-88.52121 Latitude:44.03094 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 11-376 NR 216 Class: Inspection Date:8/5/2025 8:15:24 AM Inspector:JCW o20250805080848.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-71 Time Collected:08:10 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.44 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole, including syringe. units Temperature (field):78 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):82 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):489 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 US1 City of Oshkosh Inspection Date:8/22/2024 7:38:52 AM o20240822073522.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.09 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole, including dead raccoon. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):84 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:549 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 7:43:23 AM o20230717062704.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.22 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):80 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1550 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 10:57:00 AM o20220923105710.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.16 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids approx 5” thick. Slightly elevated ammonia. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):80 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.25 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:648 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 8:01:10 AM o20210816075758.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.67 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):83 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:572 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 US1 City of Oshkosh Inspection Date:8/20/2020 2:10:47 PM o20200820140542.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.64 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 84 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):81 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:382 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 8:47:01 AM o20190917074432.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.94 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):82 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:439 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 9:45:12 AM o20181022094232.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.52 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 55 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):82 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:575 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 1:07:06 PM o20171017130258.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.62 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):79 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:829 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 US1 City of Oshkosh Inspection Date:10/19/2016 7:46:56 AM o20161019074410.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.89 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 58 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):79 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:357 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/24/2015 9:10:22 AM o20150924081150.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.88 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):81 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:397 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 1:36:18 PM o20141009123616.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.76 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 59 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):74 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:381 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/4/2011 9:23:47 AM o20111004092208.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.76 Detergents:0 ppm ppm mg/L units Temperature 62 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):79 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-376 US1 City of Oshkosh Inspection Date:5/10/2011 12:23:00 PM o20110510122336.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted for upstream manhole prescreening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:9/8/2009 Osh09_DSCN6622.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.82 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles). Significant floating debris in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):81 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 City of Oshkosh o20250805083808.JPG Outfall Notes: Storm sewer from Washington Ave discharges to lake from west. Outfall fully submerged and not physically located - pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Arch Material: CMP Diameter (in): Height/Depth (in):24 Width (in):35 Not Physically Located Easting:798,806 Northing:473,365 Longitude:-88.51594 Latitude:44.01807 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43342 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 8:42:38 AM Inspector:JCW o20250805083814.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 11-512 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 City of Oshkosh Inspection Date:8/22/2024 8:24:20 AM o20240822082222.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 8:33:02 AM o20230717071958.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 9:24:00 AM o20220923092250.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 8:42:01 AM o20210816083746.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 City of Oshkosh Inspection Date:8/20/2020 1:20:27 PM o20200820131742.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 2:05:48 PM o20190917130514.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 9:59:38 AM o20181022095658.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 1:20:48 PM o20171017131910.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 City of Oshkosh Inspection Date:10/10/2016 11:04:16 AM o20161010110406.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/22/2015 7:03:32 AM o20150922060708.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 12:48:49 PM o20141009114820.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:9/27/2012 8:21:03 AM o20120927072324.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 City of Oshkosh Inspection Date:6/20/2012 8:23:31 AM o20120620072350.JPG Previous Rainfall (hrs):24-48Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Inspection Date:10/3/2011 12:09:11 PM o20111003121010.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/10/2011 9:08:00 AM o20110510090810.JPG Previous Rainfall (hrs):0-24Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 11-512 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 US1 City of Oshkosh o20250805083826.JPG Outfall Notes: Upstream manhole located approx 34 ft SW of outfall 11-512. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:798,778 Northing:473,348 Longitude:-88.51605 Latitude:44.01803 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 11-512 NR 216 Class: Inspection Date:8/5/2025 8:43:30 AM Inspector:JCW o20250805083836.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-45 Time Collected:08:40 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.12 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):77 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):40 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):387 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 US1 City of Oshkosh Inspection Date:8/22/2024 8:25:32 AM o20240822082240.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.11 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:73 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 8:37:03 AM o20230717072024.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.15 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole, including two syringes. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:205 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/23/2022 9:26:00 AM o20220923092448.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.84 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in upstream manhole. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:460 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/16/2021 8:42:51 AM o20210816083856.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.65 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):41 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:345 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 US1 City of Oshkosh Inspection Date:8/20/2020 1:21:12 PM o20200820131802.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.07 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Elevated pH seemed widespread in river/lake. units Temperature 84 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:347 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/17/2019 2:08:21 PM o20190917130614.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.23 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):37 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:333 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/22/2018 10:00:30 AM o20181022100114.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.35 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 57 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:470 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 1:23:39 PM o20171017131930.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.47 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:581 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 US1 City of Oshkosh Inspection Date:10/10/2016 11:07:16 AM o20161010110444.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.63 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:514 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/22/2015 7:04:46 AM o20150922060832.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.93 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):37 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1055 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 12:52:08 PM o20141009115024.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.57 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 62 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:548 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:9/27/2012 8:22:20 AM o20120927072438.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.73 Detergents:0 ppm ppm mg/L 2011 gross solids follow-up. units Temperature 59 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):34 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:416 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 11-512 US1 City of Oshkosh Inspection Date:6/20/2012 8:24:06 AM o20120620072408.JPG Previous Rainfall (hrs):24-48Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Gross solids pre-screening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2012 Inspection Date:10/3/2011 12:13:00 PM o20111003121302.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.39 Detergents:0 ppm ppm mg/L Significant floatable debris in manhole. units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):36 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/10/2011 9:08:00 AM o20110510090830.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted for upstream manhole prescreening. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 City of Oshkosh o20250925103246.JPG Outfall Notes: Congress Ave storm sewer discharges to river from east. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):21 Height/Depth (in): Width (in): Not Physically Located Easting:786,530 Northing:479,312 Longitude:-88.56262 Latitude:44.03437 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-44264 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 10:34:44 AM Inspector:JCW o20250925103250.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on east bridge abutment. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:Moderate Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 City of Oshkosh Inspection Date:9/3/2024 1:07:39 PM o20240903130646.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on nearby bridge abutment. Floating gross solids in manhole. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 11:14:03 AM o20230717095836.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on nearby bridge abutment. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/19/2022 3:18:00 PM o20220919151702.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 9:13:52 AM o20210817091208.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on nearby bridge abutment. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 City of Oshkosh Inspection Date:8/19/2020 8:41:26 AM o20200819084114.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located - screened upstream at 12-569 US1. Graffiti on bridge abutment. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 11:19:35 AM o20190918101816.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on nearby bridge abutment. Floating gross solids (litter) in MH. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 9:23:56 AM o20181024092154.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on nearby bridge abutment. Floating gross solids (litter) in MH. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 10:17:17 AM o20171018101412.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on nearby bridge abutment. Floating gross solids (litter) in MH. units Temperature --° F Graffiti:Minor Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 City of Oshkosh Inspection Date:10/10/2016 1:26:15 PM o20161010132600.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Graffiti on east bridge abutment. Outfall fully submerged and not located - screened upstream at 12-569 US1. units Temperature --° F Graffiti:Minor Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 11:06:02 AM o20150923100828.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 12- 569 US1. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/7/2014 7:38:26 AM o20141007063712.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-569 US1. Graffiti on east abutment. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/11/2011 1:49:07 PM o20111011134840.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged and not physically located. Outfall screened upstream at 12-569 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 City of Oshkosh Inspection Date:8/19/2010 2:37:50 PM o20100819143022.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 12-569 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 US1 City of Oshkosh o20250925103434.JPG Outfall Notes: Upstream manhole located approx 48 ft ESE of outfall 12-569. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:786,578 Northing:479,306 Longitude:-88.56244 Latitude:44.03436 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 12-569 NR 216 Class: Inspection Date:9/25/2025 10:38:06 AM Inspector:JCW o20250925103442.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-25 Time Collected:10:35 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.98 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):73 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):40 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):466 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 US1 City of Oshkosh Inspection Date:9/3/2024 1:10:38 PM o20240903130832.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.2 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):45 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:206 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 11:17:35 AM o20230717100040.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.39 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:435 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/19/2022 3:24:00 PM o20220919152124.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.5 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:484 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 9:16:38 AM o20210817091344.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.15 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:454 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 US1 City of Oshkosh Inspection Date:8/19/2020 8:45:29 AM o20200819084220.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.49 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:349 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 11:22:28 AM o20190918101948.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.3 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):42 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:419 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 9:25:23 AM o20181024092322.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.4 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 52 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):44 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:714 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 10:20:25 AM o20171018101542.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.44 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):39 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:1118 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 US1 City of Oshkosh Inspection Date:10/10/2016 1:30:04 PM o20161010132718.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Clearly visible in bottl Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.41 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:616 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 11:06:51 AM o20150923101026.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.5 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:441 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/7/2014 7:39:34 AM o20141007063948.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.66 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature 59 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):34 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:771 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:10/11/2011 1:51:24 PM o20111011134946.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.63 Detergents:-- ppm ppm mg/L 2010 screening follow-up. Floatable debris significantly reduced. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):32 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-569 US1 City of Oshkosh Inspection Date:5/26/2011 2:40:00 PM o20110526144100.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/19/2010 2:41:43 PM o20100819143434.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.59 Detergents:0 ppm ppm mg/L Severe floatable debris units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):38 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-576 City of Oshkosh o20250925102306.JPG Outfall Notes: Algoma Blvd storm sewer discharges to Fox River from east. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Arch Material: CMP Diameter (in): Height/Depth (in):44 Width (in):72 Not Physically Located Easting:785,844 Northing:481,155 Longitude:-88.56524 Latitude:44.03942 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43553 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 10:22:38 AM Inspector:JCW o20250925102308.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 12-576 US1. Gross solids in manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-576 City of Oshkosh Inspection Date:9/3/2024 12:54:52 PM o20240903125318.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-576 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:10/24/2018 9:35:27 AM o20181024093352.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-576 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 10:05:54 AM o20171018100254.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-576 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 1:14:55 PM o20161010131430.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-576 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-576 City of Oshkosh Inspection Date:9/23/2015 3:11:43 PM o20150923141532.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located- screened at 12- 576 US1 units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 7:43:34 AM o20141009064412.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 12-576 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:8/19/2010 1:47:19 PM o20100819133944.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 12-576 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6673.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-576 US1 City of Oshkosh o20250925101954.JPG Outfall Notes: Upstream manhole located approx 52 ft ENE of outfall 12-576. Intermediate area consists of residential lawn area and shoreline. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:785,916 Northing:481,123 Longitude:-88.56496 Latitude:44.03934 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 12-576 NR 216 Class: Inspection Date:9/25/2025 10:23:17 AM Inspector:JCW o20250925102000.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-13 Time Collected:10:21 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.14 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):73 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):67 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):416 µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-576 US1 City of Oshkosh Inspection Date:9/3/2024 12:56:18 PM o20240903125400.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.56 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 80 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):71 Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:420 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:10/24/2018 9:37:10 AM o20181024093506.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.77 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 51 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):77 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:614 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/18/2017 10:08:19 AM o20171018100406.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.94 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):69 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:650 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/10/2016 1:17:02 PM o20161010131500.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.67 Detergents:0 ppm ppm mg/L units Temperature 67 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):69 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:496 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-576 US1 City of Oshkosh Inspection Date:9/23/2015 3:14:15 PM o20150923141608.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.45 Detergents:0 ppm ppm mg/L units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):70 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:361 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/9/2014 7:46:02 AM o20141009064434.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.38 Detergents:0 ppm ppm mg/L Floating gross solids (litter) inside manhole. units Temperature 53 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):66 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:663 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Inspection Date:8/19/2010 1:50:40 PM o20100819134200.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.85 Detergents:0 ppm ppm mg/L units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):72 Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Inspection Date:9/9/2009 Osh09_DSCN6675.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.46 Detergents:0 ppm ppm mg/L Abnormal detergent analysis result (bubbles). Significant floatables (bottles) in manhole. units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):68 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Severe Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-925 City of Oshkosh o20250925100232.JPG Outfall Notes: Algoma Blvd storm sewer discharges to riprap channel from east. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):48 Height/Depth (in): Width (in): Not Physically Located Easting:785,033 Northing:484,992 Longitude:-88.56834 Latitude:44.04995 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43835 Non-Priority Major Outfall NR 216 Class: Inspection Date:9/25/2025 10:06:18 AM Inspector:JCW o20250925100334.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-61 Time Collected:10:05 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.43 Detergents:0 ppm ppm mg/L Notes:Traffic at upstream manhole - sample collected from outfall pool. Scour hole immediately downstream of outfall. units Temperature (field):71 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:Minor Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):2 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:Slight Natural Suds/FoamNatural Sheen Conductivity (field):1074 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-925 City of Oshkosh Inspection Date:8/19/2020 8:11:39 AM o20200819080916.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.38 Detergents:0 ppm ppm mg/L Sample collected from pipe flow. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1305 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/23/2015 1:34:27 PM o20150923123638.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.16 Detergents:0 ppm ppm mg/L units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1056 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/3/2013 7:24:06 AM o20130703062810.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.1 Detergents:0 ppm ppm mg/L Sample collected from submerged pipe flow. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1278 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/2/2009 Osh09_DSCN6305.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 12-925 US2. Faint sulfide odor. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):4 Vegetation: Benthic Growth:Slight Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-68 City of Oshkosh o20250807125332.JPG Outfall Notes: Universal St storm sewer discharges to stream from west. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):18 Height/Depth (in): Width (in): Not Physically Located Easting:778,343 Northing:464,494 Longitude:-88.59369 Latitude:43.99370 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43902 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/7/2025 12:59:09 PM Inspector:JCW o20250807125338.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron wet, but no collectable flow at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:Moderate Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):1 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-68 City of Oshkosh Inspection Date:9/15/2020 2:47:21 PM o20200915144706.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Apron backpitched, with no flow leaving apron. No sample collected. Metal apron corroded. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/28/2015 8:45:46 AM o20150928074748.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened at 13-68 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:Slight Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/30/2013 9:08:31 AM o20130730081156.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall submerged upstream at 13-68 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):2 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/3/2009 Osh09_DSCN6413.JPG Previous Rainfall (hrs):72+Flow:None Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Wet, but no flow leaving pipe. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:1 Depth (in):0 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-471 City of Oshkosh o20250925122832.JPG Outfall Notes: Storm sewer from 9th Ave discharges to stream north of road. Upstream manhole not accessible. Location Map Major Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):48 Width (in):76 Not Physically Located Easting:783,683 Northing:470,710 Longitude:-88.57342 Latitude:44.01077 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43360 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 12:33:20 PM Inspector:JCW o20250925122922.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, significant flow Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-07 Time Collected:12:30 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.46 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged flow inside pipe. Rocks in pipe, downstream channel erosion. units Temperature (field):73 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:Moderate Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):27 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:Slight Natural Suds/FoamNatural Sheen Conductivity (field):507 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-471 City of Oshkosh Inspection Date:9/10/2024 8:54:39 AM o20240910085118.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.2 Detergents:0 ppm ppm mg/L Channel erosion downstream of pipe. Sample collected from submerged flow. Sediment and rocks in pipe. units Temperature 67 ° F Graffiti:None Damage:None Erosion:Moderate Deposition:Minor 5 Depth (in):33 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:407 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/9/2023 12:32:43 PM o20230809113102.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.3 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow immediately downstream from outfall. Downstream channel erosion. units Temperature 81 ° F Graffiti:None Damage:None Erosion:Moderate Deposition:Moderate 12 Depth (in):32 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:554 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/22/2022 9:59:00 AM o20220822095708.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.78 Detergents:0.3 ppm ppm mg/L Sample collected from submerged flow at end of pipe. Detergent and slightly elevated ammonia in sample. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):24 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0.25 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:Slight Conductivity:476 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/23/2021 3:10:59 PM o20210823151038.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.81 Detergents:1 ppm ppm mg/L Severe channel erosion downstream of pipe. Sample collected from submerged flow. Detergent detected in sample. units Temperature 79 ° F Graffiti:None Damage:None Erosion:Severe Deposition:None Depth (in):17 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:1140 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-471 City of Oshkosh Inspection Date:10/28/2020 4:23:00 PM o20201028162329.jpg Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0 ppm ppm mg/L Detergent follow-up. Sample collected from pipe flow. Water was cloudy. units Temperature --° F Graffiti:None Damage:None Erosion:Moderate Deposition:Moderate 12 Depth (in):28 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:QAL 2020 Inspection Date:8/20/2020 12:09:18 PM o20200820121004.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.76 Detergents:0.6 ppm ppm mg/L No flow appears to be leaving pool at end of outfall. Sample collected from pool -detergent detected. units Temperature 81 ° F Graffiti:None Damage:None Erosion:Moderate Deposition:Moderate 12 Depth (in):24 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:453 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 2:27:14 PM o20191105142746.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:8.18 Detergents:0.8 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. pH in normal range; detergent detected. units Temperature 45 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):20 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:680 µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:9/18/2019 3:16:56 PM o20190918141444.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.27 Detergents:0 ppm ppm mg/L Downstream bank erosion. Sample collected from submerged flow in pipe. High pH detected. units Temperature 77 ° F Graffiti:None Damage:None Erosion:Severe Deposition:None Depth (in):20 Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:368 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-471 City of Oshkosh Inspection Date:10/26/2018 1:26:25 PM o20181025093132.JPG Previous Rainfall (hrs):72+Flow:Submerged, significant flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.18 Detergents:0.4 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted beyond sampling. units Temperature 54 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):26 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:1183 µS/cm in. Condition Assessment Type:Repeat NotesInspector:KMK 2018 Inspection Date:10/25/2018 9:33:47 AM o20181025093132.JPG Previous Rainfall (hrs):72+Flow:Submerged, significant flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.16 Detergents:0.5 ppm ppm mg/L Downstream bank erosion. Sample collected from submerged flow in pipe. Detergent detected. units Temperature 51 ° F Graffiti:None Damage:None Erosion:Moderate Deposition:None Depth (in):26 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:1209 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:6/13/2012 12:53:24 PM o20120613115412.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.91 Detergents:0 ppm ppm mg/L No flow leaving pool on apron. Downstream cannel dry. Sample collected from apron pool. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):19 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1579 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Inspection Date:9/4/2009 Osh09_DSCN6503.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.38 Detergents:0 ppm ppm mg/L units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):38 Vegetation: Benthic Growth:Slight Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-2042 City of Oshkosh o20250925091224.JPG Outfall Notes: Storm sewer from Algoma Blvd discharges to wet area west of road. Location Map Major Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):19 Width (in):30 Not Physically Located Easting:784,342 Northing:486,380 Longitude:-88.57097 Latitude:44.05375 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43621 Non-Priority Major Outfall NR 216 Class: Inspection Date:9/25/2025 9:14:17 AM Inspector:JCW o20250925091228.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and channel dry at time of inspection. Rocks on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 12-2042 City of Oshkosh Inspection Date:8/19/2020 8:01:27 AM o20200819075900.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe dry; sediment on apron wet at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/23/2015 1:20:16 PM o20150923122254.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe flowline dry at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1098 City of Oshkosh o20250807122434.JPG Outfall Notes: Storm sewer from AmCor plant receiving area discharges to channel from south. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:778,349 Northing:463,931 Longitude:-88.59367 Latitude:43.99216 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43752 Priority Outfall NR 216 Class: Inspection Date:8/7/2025 12:27:21 PM Inspector:JCW o20250807122438.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Sample ID:250807-92 Time Collected:12:25 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.59 Detergents:0 ppm ppm mg/L Notes:Sample collected from concentrated flow immediately downstream from outfall. units Temperature (field):75 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):15 Depth (in):24 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1483 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1098 City of Oshkosh Inspection Date:9/19/2024 8:52:23 AM o20240919085010.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.29 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow 4 ft downstream from outfall pipe. units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:Severe 16 Depth (in):23 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1475 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/19/2023 3:08:27 PM o20230719135146.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.16 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow immediately downstream from outfall. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 16 Depth (in):24 Vegetation:None Benthic Growth:Severe Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1956 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/18/2022 2:17:00 PM o20220818140940.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:Easily detected Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.15 Detergents:0 ppm ppm mg/L Sample collected from submerged flow at end of pipe. Elevated ammonia. Tracking revealed santiary cross connection. units Temperature 80 ° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 18 Depth (in):6 Vegetation:None Benthic Growth:Severe Stains:None Ammonia:3 ppm Sampling Results Submerged:Fully Sample Location:Flow Illicit Discharge Potential:Obvious Gross Solids:None Non-illicit:None Conductivity:1805 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/31/2021 7:49:46 AM o20210831074728.JPG Previous Rainfall (hrs):48-72Flow:Submerged, significant flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.98 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow immediately downstream of pipe. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 16 Depth (in): Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1980 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1098 City of Oshkosh Inspection Date:10/24/2018 3:06:28 PM o20181024150410.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-1098 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):24 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/19/2017 11:22:01 AM Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.29 Detergents:0 ppm ppm mg/L Sample collected from submerged flow at end of pipe. Photo not available. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 16 Depth (in):23 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1404 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/19/2016 3:04:11 PM o20161019150326.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-1098 US1. End of pipe recently excavated. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Severe 16 Depth (in):22 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/24/2015 3:10:53 PM o20150924141536.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall not located - screened at 13-1098 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1098 City of Oshkosh Inspection Date:7/30/2013 7:57:44 AM o20130730070410.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe not located in grassy stream bank. Screened upstream at 13-1098 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/3/2009 Osh09_DSCN6427.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:18 Depth (in):23 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1174 City of Oshkosh o20200915141614.JPG Outfall Notes: Universal St storm sewer discharges to channel from west. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Pond Inlet Shape: Pipe - Arch Material: CMP Diameter (in): Height/Depth (in):36 Width (in):58 Not Physically Located Easting:778,281 Northing:463,908 Longitude:-88.59392 Latitude:43.99209 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43977 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/7/2025 12:48:00 PM Inspector:JCW o20250807123230.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall inaccessible for screening due to vegetation and terrain - screened upstream at 13-1174 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1174 City of Oshkosh Inspection Date:9/15/2020 2:19:39 PM o20200915141618.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-1174 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 2 Depth (in):21 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/24/2015 2:44:46 PM o20150924134906.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened at 13-1174 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):24 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/30/2013 8:07:14 AM o20130730071554.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Significant woody branches and roots blocking end of pipe. Partially submerged - screened upstream at 13-1174 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):23 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/3/2009 Osh09_DSCN6420.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:7 Depth (in):34 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1174 US1 City of Oshkosh o20250807123448.JPG Outfall Notes: Upstream manhole (inlet) located approx 112 ft SSW of outfall 13-1174. Intermediate area consists of driveway to industrial property. Location Map Major Outfall - Alternate Location Discharge Location: Water of the State Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:778,246 Northing:463,802 Longitude:-88.59405 Latitude:43.99181 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 13-1174 NR 216 Class: Inspection Date:8/7/2025 12:40:07 PM Inspector:JCW o20250807123454.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250807-38 Time Collected:12:32 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.54 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):77 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):15 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1880 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1174 US1 City of Oshkosh Inspection Date:9/15/2020 2:31:37 PM o20200915142706.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:8 Detergents:0 ppm ppm mg/L Sample collected from submerged flow in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):18 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1189 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/24/2015 3:01:21 PM o20150924140256.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.84 Detergents:0 ppm ppm mg/L units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):21 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1357 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/30/2013 8:27:20 AM o20130730073052.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.19 Detergents:0 ppm ppm mg/L units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):21 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1606 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/3/2009 Osh09_DSCN6850.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:0 Free Chlorine:0 pH:8.04 Detergents:0 ppm ppm mg/L units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):25 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1283 City of Oshkosh o20200915142126.JPG Outfall Notes: Universal St storm sewer discharges to channel from west. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Arch Material: CMP Diameter (in): Height/Depth (in):40 Width (in):65 Not Physically Located Easting:778,274 Northing:463,917 Longitude:-88.59395 Latitude:43.99212 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43828 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/7/2025 12:40:00 PM Inspector:JCW o20250807123058.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall inaccessible for screening due to vegetation and terrain - screened upstream at 13-1283 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1283 City of Oshkosh Inspection Date:9/15/2020 2:24:09 PM o20200915142330.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-1283 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:Moderate 16 Depth (in):23 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/24/2015 2:47:56 PM o20150924135020.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened at 13-1283 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:Moderate 18 Depth (in):27 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/30/2013 8:06:45 AM o20130730070826.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 13-1283 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:Moderate 16 Depth (in):28 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/3/2009 Osh09_DSCN6417.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:17 Depth (in):33 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1283 US1 City of Oshkosh o20250807124306.JPG Outfall Notes: Upstream manhole(inlet) located approx 112 ft SSW of outfall 13-1283. Intermediate area consists of street right-of-way. Drop inlet. Location Map Major Outfall - Alternate Location Discharge Location: Water of the State Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:778,246 Northing:463,883 Longitude:-88.59405 Latitude:43.99203 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 13-1283 NR 216 Class: Inspection Date:8/7/2025 12:48:59 PM Inspector:JCW o20250807124314.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Sample ID:250807-43 Time Collected:12:43 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.75 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged flow in manhole. units Temperature (field):77 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):14 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1086 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1283 US1 City of Oshkosh Inspection Date:9/15/2020 2:37:15 PM o20200915143358.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.52 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):10 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:851 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/24/2015 2:54:36 PM o20150924135612.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.28 Detergents:0 ppm ppm mg/L units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):17 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:Slight Conductivity:918 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/30/2013 8:20:12 AM o20130730072308.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.59 Detergents:0 ppm ppm mg/L units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):16 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1221 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/3/2009 Osh09_DSCN6423.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:0 Free Chlorine:0 pH:7.32 Detergents:0 ppm ppm mg/L units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):21 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1552 City of Oshkosh o20250807114350.JPG Outfall Notes: Storm sewer from W 20th Ave discharges to lowland at NW corner of W 20th Ave and S Washburn St. Location Map Major Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):19 Width (in):30 Not Physically Located Easting:780,329 Northing:465,506 Longitude:-88.58615 Latitude:43.99648 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43781 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/7/2025 11:45:56 AM Inspector:JCW o20250807114356.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron wet, but no collectable flow at time of inspection. Cattails and sediment on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):8 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1552 City of Oshkosh Inspection Date:9/15/2020 10:27:10 AM o20200915102420.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Sediment wet, but no flow at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 7 Depth (in): Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1588 City of Oshkosh o20250807120154.JPG Outfall Notes: Universal St storm sewer discharges to stream from east. Location Map Minor Outfall Discharge Location: Adjacent Municipality Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):36 Height/Depth (in): Width (in): Not Physically Located Easting:778,524 Northing:461,359 Longitude:-88.59299 Latitude:43.98510 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43731 Priority Outfall NR 216 Class: Inspection Date:8/7/2025 12:04:27 PM Inspector:JCW o20250807120204.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Sample ID:250807-72 Time Collected:12:02 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.54 Detergents:0 ppm ppm mg/L Notes:Sample collected from concentrated flow immediately downstream of outfall. Deposition on apron. units Temperature (field):75 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):2 Depth (in):4 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):755 µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1588 City of Oshkosh Inspection Date:9/19/2024 9:20:23 AM o20240919094210.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.75 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow immediately downstream from outfall pipe. Elevated conductivity in sample. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 3 Depth (in):4 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:Slight Conductivity:2500 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:10/24/2018 12:40:02 PM o20181024123744.JPG Previous Rainfall (hrs):72+Flow:Moderate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.22 Detergents:0 ppm ppm mg/L Sample collected from flow from end of pipe. units Temperature 55 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1515 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/19/2017 11:10:14 AM o20171019110648.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables: Total Chlorine:0 Free Chlorine:0 pH:7.32 Detergents:0.3 ppm ppm mg/L Sample collected from flow from end of pipe. units Temperature 64 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1586 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/19/2016 2:54:11 PM o20161019145234.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.3 Detergents:0 ppm ppm mg/L Sample collected from area of concentrated flow immediately downstream from outfall. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1979 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-1588 City of Oshkosh Inspection Date:9/24/2015 2:14:57 PM o20150924131716.JPG Previous Rainfall (hrs):72+Flow:Moderate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.31 Detergents:0 ppm ppm mg/L Moderate flow into detention basin. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1648 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/30/2013 6:33:19 AM o20130730053908.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.38 Detergents:0 ppm ppm mg/L units Temperature 63 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 3 Depth (in): Vegetation:None Benthic Growth:Slight Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1764 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-2563 City of Oshkosh o20250807115004.JPG Outfall Notes: Storm sewer from south side of W 20th Ave dishcarges to lowland on NW corner of W 20th Ave and S Washburn St. Location Map Major Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:780,544 Northing:465,572 Longitude:-88.58533 Latitude:43.99667 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44111 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/7/2025 11:52:15 AM Inspector:JCW o20250807115010.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. Pool with muddy water immediately downstream. NW corner of concrete apron broken. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:Minor Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-2563 City of Oshkosh Inspection Date:9/15/2020 10:23:12 AM o20200915102008.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe dry at time of inspection. Corner of concrete apron broken off. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-2736 City of Oshkosh o20250807112744.JPG Outfall Notes: Storm sewer from Homestead Dr and S Oakwood Rd discharges to stream from south. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):29 Width (in):45 Not Physically Located Easting:775,917 Northing:470,549 Longitude:-88.60293 Latitude:44.01030 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44018 Non-Priority Major Outfall NR 216 Class: Inspection Date:8/7/2025 11:29:26 AM Inspector:JCW o20250807112752.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall partially submerged- screened upstream at 13-2736 US2. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):9 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-2736 City of Oshkosh Inspection Date:8/20/2020 10:15:52 AM o20200820101342.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-2736 US2. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):10 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 2:13:00 PM o20191105141222.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-2736 US2. Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):15 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 2:58:39 PM o20191008135730.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 13-2736 US2. Detergent detected in sample. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):15 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-2736 US2 City of Oshkosh o20250807113316.JPG Outfall Notes: Upstream curb inlet located approx 49 ft SW of outfall 13-2736. Intermediate area consists of street right-of-way. First upstream manhole in heavy traffic. Location Map Major Outfall - Alternate Location Discharge Location: Water of the State Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:775,898 Northing:470,506 Longitude:-88.60301 Latitude:44.01019 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 13-3367 NR 216 Class: Inspection Date:8/7/2025 11:31:14 AM Inspector:JCW o20250807113328.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250807-20 Time Collected:11:30 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.73 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):79 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):13 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):960 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 13-2736 US2 City of Oshkosh Inspection Date:8/20/2020 10:20:25 AM o20200820101712.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.26 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 77 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):12 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1039 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 2:14:00 PM o20191105141322.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:1.3 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. Detergent detected in sample. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):16 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 3:01:59 PM o20191008135938.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.74 Detergents:1.1 ppm ppm mg/L Sample collected from submerged pool in outfall. Detergent detected in sample. Sampled from inlet due to busy street. units Temperature 64 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):19 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:799 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 14-996 City of Oshkosh o20171019120112.JPG Outfall Notes: Hughes St storm sewer discharges to stream from west. Inside Oshkosh Defense testing facility security fence. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):48 Height/Depth (in): Width (in): Not Physically Located Easting:791,155 Northing:462,710 Longitude:-88.54500 Latitude:43.98884 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43844 Priority Outfall NR 216 Class: Inspection Date:8/5/2025 12:49:57 PM Inspector:JCW o20250805124408.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall located behind locked security fence - screened upstream at 14-996 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 14-996 City of Oshkosh Inspection Date:9/10/2024 12:56:22 PM o20240910125206.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall located behind locked security fence - screened upstream at 14-996 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/19/2023 9:45:00 AM o20230719094518.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall inaccessible inside secured Oshkosh Corporation testing facility. Screened upstream at 14-996 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:10/19/2017 12:02:52 PM o20171019120120.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.48 Detergents:0 ppm ppm mg/L Upstream inlet dry - sample collected from submerged pool at end of pipe. 4" joint displacement. units Temperature 61 ° F Graffiti:None Damage:Moderate Erosion:None Deposition:None Depth (in):1 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:740 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:7/31/2013 7:06:55 AM Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Inside locked security fence. Screened upstream at 14-996 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 14-996 City of Oshkosh Inspection Date:9/4/2009 Osh09_DSCN6564.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):5 Vegetation: Benthic Growth:Slight Stains: Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 14-996 US1 City of Oshkosh o20250805124440.JPG Outfall Notes: Upstream curb inlet located approx 139 ft NW of outfall 14-996. Intermediate area consists of open space and wooded area. Location Map Major Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:791,045 Northing:462,797 Longitude:-88.54542 Latitude:43.98908 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 14-996 NR 216 Class: Inspection Date:8/5/2025 12:50:37 PM Inspector:JCW o20250805124448.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-13 Time Collected:12:44 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.20 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Upstream end of airport culvert dry. units Temperature (field):84 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):5 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):868 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 14-996 US1 City of Oshkosh Inspection Date:9/10/2024 12:57:12 PM o20240910125334.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.62 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):5 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:353 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/19/2023 11:03:21 AM o20230719094606.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.47 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole had elevated ammonia. Initial tracking showed potential source west of road. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):5 Vegetation:None Benthic Growth:None Stains:None Ammonia:3 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:750 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:7/31/2013 7:13:15 AM o20130731061500.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.67 Detergents:0 ppm ppm mg/L units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):5 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0.5 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:431 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/4/2009 Osh09_DSCN6567.JPG Previous Rainfall (hrs):72+Flow:Moderate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.63 Detergents:0 ppm ppm mg/L units Temperature 82 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):0 Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-2243 City of Oshkosh o20250925134552.JPG Outfall Notes: Storm sewer from CTH A discharges to stream from west. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:795,685 Northing:487,899 Longitude:-88.52783 Latitude:44.05794 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43448 Non-Priority Major Outfall NR 216 Class: Inspection Date:9/25/2025 1:48:29 PM Inspector:JCW o20250925134554.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-75 Time Collected:13:46 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.74 Detergents:0 ppm ppm mg/L Notes:Outfall fully submerged. Heavy traffic at upstream manhole in highway - sample collected inside submerged pipe. units Temperature (field):72 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):24 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1231 µS/cm 2025 Page 1 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-2243 City of Oshkosh Inspection Date:9/24/2020 8:36:06 AM o20200924083040.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 15-2243 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:QAL 2020 Inspection Date:11/5/2019 10:24:00 AM o20191105102346.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 11:47:00 AM Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 15-2243 US1. Detergent in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/6/2011 10:18:45 AM o20111006102246.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 15-2243 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):20 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Page 2 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-2243 City of Oshkosh Inspection Date:5/26/2011 10:24:00 AM o20110526102404.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 15-2243 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:9/8/2009 Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition: Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 3 of 3Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-3339 City of Oshkosh o20250917132400.JPG Outfall Notes: Storm sewer from N Main St discharges to NE corner of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):54 Height/Depth (in): Width (in): Not Physically Located Easting:792,968 Northing:484,557 Longitude:-88.53815 Latitude:44.04877 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43714 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 1:27:07 PM Inspector:JCW o20250917132416.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:Severe Sample ID:250917-05 Time Collected:13:27 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.99 Detergents:0 ppm ppm mg/L Notes:Sample collected from pipe flow. Blue stains on riprap on north side of apron - possibly from blue-green algae. units Temperature (field):79 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):2 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1808 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-3339 City of Oshkosh Inspection Date:7/17/2023 4:07:18 PM o20230717145140.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.86 Detergents:0 ppm ppm mg/L Log on apron. Outfall partially submerged, upstream curb inlet wet, but no collectable flow. Sample collected from outfall pool due to 2022 detect. units Temperature 71 ° F Graffiti:None Damage:Minor Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:1634 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/30/2022 9:37:00 AM o20220930093620.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 15-3339 US1. Abnormal detergent result from upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:Severe Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-3373 City of Oshkosh o20250917134016.JPG Outfall Notes: Storm sewer from Comet St discharges to south side of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):27 Height/Depth (in): Width (in): Not Physically Located Easting:792,769 Northing:483,851 Longitude:-88.53891 Latitude:44.04683 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43812 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 1:43:03 PM Inspector:JCW o20250917134020.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall partially submerged - screened upstream at 15-3373. Elevated ammonia and detergent in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):3 Depth (in):6 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:Moderate Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:Slight Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-3373 City of Oshkosh Inspection Date:9/3/2024 2:58:57 PM o20240903145732.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 15-3373 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 3 Depth (in):8 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 3:50:54 PM o20230717143516.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 15-3373 US1. Detergent detected in upsream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):5 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/30/2022 9:26:00 AM o20220930092356.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.55 Detergents:0.25 ppm ppm mg/L Sample collected from submerged flow inside pipe. Detergent detected in sample. units Temperature 57 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):4 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:841 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-3373 US1 City of Oshkosh o20250917134454.JPG Outfall Notes: Upstream manhole located approx 75 ft S of outfall 15-3373. Intermediate area consists of street right- of-way, residential lot and pond embankment. Location Map Supplemental - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:792,782 Northing:483,777 Longitude:-88.53886 Latitude:44.04663 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 15-3373 NR 216 Class: Inspection Date:9/17/2025 1:48:59 PM Inspector:JCW o20250917134502.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Sample ID:250917-58 Time Collected:13:46 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.52 Detergents:0.85 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Detergent and elevated ammonia in sample. units Temperature (field):76 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):3 Petrol. Sheen Suds Sewage Algae Other Brown ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):1 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:Slight Natural Suds/FoamNatural Sheen Conductivity (field):703 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 15-3373 US1 City of Oshkosh Inspection Date:9/3/2024 3:03:03 PM o20240903150120.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.2 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:753 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 3:57:06 PM o20230717143904.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Severe Total Chlorine:0 Free Chlorine:0 pH:7.16 Detergents:0.9 ppm ppm mg/L Sample collected from submerged pool in manhole. Detergent detected in sample. Next upstream curb inlet dry. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:464 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 City of Oshkosh o20250925110724.JPG Outfall Notes: Storm sewer from Oshkosh Ave discharges to river from west. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:785,892 Northing:479,412 Longitude:-88.56505 Latitude:44.03464 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43461 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 11:09:08 AM Inspector:JCW o20250925110728.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 16-594 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 City of Oshkosh Inspection Date:9/3/2024 1:35:36 PM o20240903133450.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 12:25:50 PM o20230717111032.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 2:52:00 PM o20220824144736.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 9:39:49 AM o20210817093900.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 City of Oshkosh Inspection Date:8/19/2020 9:04:07 AM o20200819090352.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 11:05:33 AM o20190918100438.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 9:07:36 AM o20181024090620.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 11:24:35 AM o20171017112242.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-594 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 City of Oshkosh Inspection Date:10/10/2016 2:04:49 PM o20161010140356.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located -screened upstream at 16-594 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:8/19/2010 7:23:24 AM o20100819071708.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 16-594 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 US1 City of Oshkosh o20250925110832.JPG Outfall Notes: Upstream manhole located approx 60 ft WSW of outfall 16-594. Intermediate area consists of open space in park. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:785,844 Northing:479,383 Longitude:-88.56523 Latitude:44.03457 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 16-594 NR 216 Class: Inspection Date:9/25/2025 11:11:40 AM Inspector:JCW o20250925110840.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-86 Time Collected:11:09 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.16 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):75 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):58 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):389 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 US1 City of Oshkosh Inspection Date:9/3/2024 1:37:54 PM o20240903133620.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:Moderate Total Chlorine:0 Free Chlorine:0 pH:7.28 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):58 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:87 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:7/17/2023 12:28:18 PM o20230717111202.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.69 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:256 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 2:53:00 PM o20220824144754.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.12 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:336 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 9:42:48 AM o20210817094028.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.66 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):59 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:205 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 US1 City of Oshkosh Inspection Date:8/19/2020 9:06:48 AM o20200819090422.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.9 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:339 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/18/2019 11:07:43 AM o20190918100526.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.27 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):56 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:367 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 9:08:57 AM o20181024090720.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.35 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 50 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):57 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:456 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 11:27:30 AM o20171017112318.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:6.98 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):51 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:741 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-594 US1 City of Oshkosh Inspection Date:10/10/2016 2:07:20 PM o20161010140454.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:Easily detected Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.17 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):51 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.25 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:831 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:8/19/2010 7:26:35 AM o20100819071738.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.44 Detergents:0 ppm ppm mg/L 2 small oil drops, likely from Oshkosh Ave runoff. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):51 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-844 City of Oshkosh o20250925114304.JPG Outfall Notes: Storm sewer from Koeller St discharges to stream from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):18 Height/Depth (in): Width (in): Not Physically Located Easting:781,597 Northing:476,531 Longitude:-88.58137 Latitude:44.02673 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43946 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 11:46:19 AM Inspector:JCW o20250925114308.JPG Previous Rainfall (hrs):72+ Flow Description:Trickle Odor:None Color:None Turbidity:None Floatables:Slight Sample ID:250925-37 Time Collected:11:44 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.49 Detergents:0 ppm ppm mg/L Notes:Sample collected from pipe flow. Elevated conductivity. Graffiti on both Koeller St bridge abutments. units Temperature (field):77 ° F Inspection Type:Ongoing Graffiti:Severe Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):2890 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-844 City of Oshkosh Inspection Date:9/10/2024 7:37:15 AM o20240910073502.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe wet, but no collectable flow at time of inspection. Gross solids in and around pipe. Graffiti on nearby bridge abutments. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/1/2023 11:33:46 AM o20230801103220.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.43 Detergents:0 ppm ppm mg/L Sample collected from pipe flow. Elevated conductivity. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:7200 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:9/16/2022 9:45:00 AM o20220916094346.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.99 Detergents:0 ppm ppm mg/L Sample collected from pipe flow. Elevated conductivity in sample. Tracked upstream without finding source. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:2310 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 8:47:50 AM o20210817084532.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.14 Detergents:0.65 ppm ppm mg/L Sample collected from pipe flow. Detergent detected in sample. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Severe Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:1990 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-844 City of Oshkosh Inspection Date:8/20/2020 7:55:43 AM o20200820075354.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe wet, but no collectable flow at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 8:43:00 AM o20191105084324.JPG Previous Rainfall (hrs):48-72Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0.8 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 1:59:59 PM o20191008125814.JPG Previous Rainfall (hrs):48-72Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.09 Detergents:0.5 ppm ppm mg/L Sample collected from pipe flow. Detergent and elevated conductivity in sample. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:2640 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/26/2018 1:46:37 PM o20181025085152.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.19 Detergents:0.5 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted beyond sampling. units Temperature 56 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:3550 µS/cm in. Condition Assessment Type:Repeat NotesInspector:KMK 2018 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-844 City of Oshkosh Inspection Date:10/25/2018 8:55:36 AM o20181025085152.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.22 Detergents:0.45 ppm ppm mg/L Sample collected from pipe flow. Detergent and elevated conductivity in sample. units Temperature 52 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:3300 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/17/2017 10:32:21 AM o20171017102814.JPG Previous Rainfall (hrs):48-72Flow:Trickle Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.35 Detergents:0 ppm ppm mg/L Sample collected from pipe flow. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:1704 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 7:21:24 AM o20161018071712.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.29 Detergents:0 ppm ppm mg/L Elevated conductivity, but no other parameters out of range. units Temperature 64 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:3880 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/28/2015 7:20:55 AM o20150928062340.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Flowline wet, but no flow at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-844 City of Oshkosh Inspection Date:6/6/2012 11:50:55 AM o20120606105408.JPG Previous Rainfall (hrs):72+Flow:Trickle Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:8.1 Detergents:0 ppm ppm mg/L units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:5050 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-941 City of Oshkosh o20250917112126.JPG Outfall Notes: Storm sewer from Westhaven Dr discharges to Aurora detention basin, which ultimately discharges to STH 21 right-of-way. Location Map Minor Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:778,417 Northing:477,530 Longitude:-88.59346 Latitude:44.02946 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44221 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 11:26:28 AM Inspector:JCW o20250917112234.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:Clearly visible in bottle Turbidity:None Floatables:None Sample ID:250917-18 Time Collected:11:23 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):9.20 Detergents:0 ppm ppm mg/L Notes:Outfall partially submerged. Traffic at upstream curb inlet - sampled from outfall pool. Grate in pond. Elevated pH in pond. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:Moderate Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):11 Petrol. Sheen Suds Sewage Algae Other Blue ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):470 µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-941 City of Oshkosh Inspection Date:8/22/2024 1:42:19 PM o20240822134128.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:Clearly visible in flow Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.05 Detergents:0 ppm ppm mg/L Upstream curb inlet (16-941 US1) wet, but no collectable flow at time of inspection. Sample collected from outfall pool. Blue pond dye. Elevated pH. units Temperature 79 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):15 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:265 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:10/3/2017 10:01:36 AM o20171003095924.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-941 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None Depth (in):14 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:6/6/2012 1:03:13 PM o20120606120050.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Grate detached from apron. Outfall partially submerged. Outfall screened upstream at 16-941 US1. units Temperature --° F Graffiti:None Damage:Minor Erosion:None Deposition:None Depth (in):6 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 City of Oshkosh o20250917121448.JPG Outfall Notes: Storm sewer from Patriot Ln discharges to swale/dry pond that ultimately discharges to wet pond to south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: HDPE Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:779,838 Northing:476,251 Longitude:-88.58806 Latitude:44.02596 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43648 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 12:18:41 PM Inspector:JCW o20250917121452.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall partially submerged - screened upstream at 16-995 US1. Pipe clear; root/berm immediately downstream blocking flow. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):16 Depth (in):10 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Severe Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 City of Oshkosh Inspection Date:8/22/2024 1:53:45 PM o20240822135154.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2" sediment in pipe, 12" root mass obstructing flow. Screened upstream at 16-995 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 2 Depth (in):11 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/1/2023 10:14:27 AM o20230801091314.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-995 US1. Pipe clear, 15" berm at end of apron creating dam. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 15 Depth (in):11 Vegetation:None Benthic Growth:Severe Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/23/2022 3:14:00 PM o20220823151212.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.46 Detergents:3.5 ppm ppm mg/L No flow leaving apron. Sample collected from apron pool. Detergent detected in sample. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):10 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:325 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 8:08:20 AM o20210817080534.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-995 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):10 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 City of Oshkosh Inspection Date:8/20/2020 8:35:17 AM o20200820083238.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 10 inch berm of roots blocking flow from apron. Outfall partially submerged - screened upstream at 16-995 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):8 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:10/8/2019 2:29:54 PM o20191008132854.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-995 US1. Detergent detected in sample. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):18 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/25/2018 8:27:19 AM o20181025082506.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-995 US1. Detergent detected in sample. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):12 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/3/2017 10:18:12 AM o20171003101614.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-995 US1. Detergent detected in sample. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):8 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 City of Oshkosh Inspection Date:6/6/2012 1:21:40 PM o20120606122140.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L No flow leaving pool at end of outfall. Deposition in swale downstream. Screened upstream at 16-995 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 8 Depth (in):9 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 US1 City of Oshkosh o20250917121844.JPG Outfall Notes: Upstream manhole located approx 112 ft W of outfall 16-995. Intermediate area consists of open space. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:779,726 Northing:476,250 Longitude:-88.58848 Latitude:44.02596 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 16-995 NR 216 Class: Inspection Date:9/17/2025 12:24:40 PM Inspector:JCW o20250917121852.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250917-17 Time Collected:12:21 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.08 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):74 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):4 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):151 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 US1 City of Oshkosh Inspection Date:8/22/2024 1:58:13 PM o20240822135526.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.94 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):4 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:713 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/1/2023 10:24:09 AM o20230801092110.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.82 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:777 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/17/2021 8:13:37 AM o20210817080912.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.53 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:801 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Inspection Date:8/20/2020 8:38:07 AM o20200820083626.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Flowline damp, but no collectable flow at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 US1 City of Oshkosh Inspection Date:11/5/2019 3:00:59 PM o20191105145942.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:1.3 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):8 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 2:32:34 PM o20191008133058.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.45 Detergents:1 ppm ppm mg/L Sample collected from submerged pool in outfall. Detergent detected in sample. units Temperature 65 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):9 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:731 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/26/2018 12:12:28 PM o20181025082910.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.02 Detergents:0.85 ppm ppm mg/L Detergent detection follow-up. Limited screening conducted beyond sampling. units Temperature 54 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:1143 µS/cm in. Condition Assessment Type:Repeat NotesInspector:KMK 2018 Inspection Date:10/25/2018 8:28:36 AM o20181025082910.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.86 Detergents:0.4 ppm ppm mg/L Sample collected from submerged pool in outfall. Detergent detected in sample. units Temperature 50 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:1011 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-995 US1 City of Oshkosh Inspection Date:10/17/2017 8:51:34 AM o20171017084622.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.54 Detergents:0.8 ppm ppm mg/L Repeat inspection due to detergent. Detergent detected in manhole sample. units Temperature 61 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):7 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:582 µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2017 Inspection Date:10/3/2017 10:22:53 AM o20171003101932.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.45 Detergents:1.3 ppm ppm mg/L Sample collected from submerged pool in outfall. Detergent detected in sample. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:333 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:6/6/2012 1:28:22 PM o20120606122856.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:Faint Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.36 Detergents:0 ppm ppm mg/L Sample collected from pool in manhole. No flow entering either pipe. units Temperature 69 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):1 Vegetation:None Benthic Growth:None Stains:Slight Ammonia:0 ppm Sampling Results Submerged:None Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:411 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 City of Oshkosh o20250925104554.JPG Outfall Notes: N Sawyer St storm sewer discharges to river from south. Outfall fully submerged and not physically located. GPS coordinates approximate. Pipe info from MS4 map. (Formerly 16-533.) Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:785,380 Northing:478,813 Longitude:-88.56699 Latitude:44.03300 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43507 Priority Outfall NR 216 Class: Inspection Date:9/25/2025 10:54:18 AM Inspector:JCW o20250925104602.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at 16-1178 US1. Gross solids in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 City of Oshkosh Inspection Date:9/19/2024 10:20:44 AM o20240919101058.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-1178 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/9/2023 10:46:36 AM o20230809093408.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-1178 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 2:29:00 PM o20220824142120.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-1178 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/31/2021 11:09:30 AM o20210831110724.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1178 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 City of Oshkosh Inspection Date:9/24/2020 9:53:07 AM o20200924095628.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. Floating gross solids (litter) in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:QAL 2020 Inspection Date:11/5/2019 9:36:00 AM o20191105093616.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 1:37:40 PM o20191008123600.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. Floating gross solids (litter) and detergent in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 8:46:55 AM o20181024084514.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 City of Oshkosh Inspection Date:10/19/2017 1:28:21 PM o20171019132622.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 9:28:25 AM o20161018092038.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 10:32:22 AM o20150923093118.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened at 16- 533 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/7/2014 9:08:49 AM o20141007080736.JPG Previous Rainfall (hrs):48-72Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not located - screened upstream at 16-533 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 City of Oshkosh Inspection Date:10/11/2011 12:16:32 PM o20111011121620.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L 2010 screening follow-up. Outfall fully submerged and not physically located. Outfall screened upstream at 16-533 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:8/26/2010 10:11:27 AM o20100826094912.JPG Previous Rainfall (hrs):72+Flow:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged and not physically located. Outfall screened upstream at 16-533 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Outfall Not Located Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 US1 City of Oshkosh o20250925105058.JPG Outfall Notes: Upstream manhole located approx 75 ft NE of outfall 16-1178 (formerly 16-533). Intermediate area consists of street right-of-way and commercial property. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:785,329 Northing:478,752 Longitude:-88.56719 Latitude:44.03283 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 16-1178 NR 216 Class: Inspection Date:9/25/2025 10:55:03 AM Inspector:JCW o20250925105110.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-20 Time Collected:10:52 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.75 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature (field):74 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):35 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):472 µS/cm 2025 Page 1 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 US1 City of Oshkosh Inspection Date:9/19/2024 10:21:29 AM o20240919101514.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:8.29 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 75 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):35 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:417 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/9/2023 10:47:22 AM o20230809094116.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.72 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) and trace ammonia in manhole. units Temperature 80 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):37 Vegetation:None Benthic Growth:None Stains:None Ammonia:0.5 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:456 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/24/2022 2:30:00 PM o20220824142446.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.64 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 81 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:354 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/31/2021 11:17:57 AM o20210831111218.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.29 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:389 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 US1 City of Oshkosh Inspection Date:9/24/2020 10:01:33 AM o20200924100816.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.8 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 68 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):33 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:433 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:QAL 2020 Inspection Date:11/5/2019 9:37:43 AM o20191105093642.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:0 ppm ppm mg/L Follow-up inspection for sampling - limited screening conducted. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 1:38:32 PM o20191008123830.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.34 Detergents:0.5 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. Detergent detected in sample. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):38 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:449 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/24/2018 8:51:52 AM o20181024084850.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.75 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. Floating gross solids (litter) in manhole. units Temperature 48 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):46 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:485 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 3 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 US1 City of Oshkosh Inspection Date:10/19/2017 1:34:48 PM o20171019133054.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:Slight Total Chlorine:0 Free Chlorine:0 pH:7.89 Detergents:0 ppm ppm mg/L Sample collected from submerged pool in manhole. units Temperature 66 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:668 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 9:29:17 AM o20161018092516.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.94 Detergents:0 ppm ppm mg/L Potential illicit discharge due to gross solids. units Temperature 63 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):40 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:482 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/23/2015 10:32:59 AM o20150923093204.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.95 Detergents:0 ppm ppm mg/L Floating gross solids (litter) - including syringe - in manhole. units Temperature 71 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):36 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:363 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/7/2014 9:13:45 AM o20141007081140.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.67 Detergents:0 ppm ppm mg/L Floating gross solids (litter) in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):34 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:474 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 4 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1178 US1 City of Oshkosh Inspection Date:10/11/2011 12:22:21 PM o20111011121924.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.9 Detergents:-- ppm ppm mg/L 2010 screening follow-up. Floatable debris significantly reduced. units Temperature 70 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):16 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2011 Inspection Date:5/26/2011 2:35:00 PM o20110526143524.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor: Color: Turbidity: Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Limited screening conducted to check for floatable debris. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in): Vegetation: Benthic Growth: Stains: Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Other NotesInspector:JCW 2011 Inspection Date:8/26/2010 10:01:38 AM o20100826095640.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:Faint in bottle Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.23 Detergents:0 ppm ppm mg/L Floatable debris in manhole. units Temperature 76 ° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):36 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:0 ppm Sampling Results Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2010 Page 5 of 5Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1205 City of Oshkosh o20250917113944.JPG Outfall Notes: Curb inlet from Washburn St discharges to northeast corner of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:779,975 Northing:478,341 Longitude:-88.58754 Latitude:44.03169 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43396 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 11:43:20 AM Inspector:JCW o20250917113950.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250917-30 Time Collected:11:40 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.79 Detergents:0 ppm ppm mg/L Notes:Upstream curb inlet not screened due to traffic - no flow leaving curb inlet. Sample from outfall pool due to prior illicit discharges. units Temperature (field):80 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):2 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:Slight Natural Suds/FoamNatural Sheen Conductivity (field):1240 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1205 City of Oshkosh Inspection Date:8/22/2024 12:56:40 PM o20240822125502.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.06 Detergents:0 ppm ppm mg/L No water leaving upstream curb inlet (16-1205 US1) - sample collected from submerged pool at end of pipe. Slightly elevated pH. units Temperature 78 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:None Conductivity:626 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:8/1/2023 9:49:51 AM o20230801084810.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.95 Detergents:0 ppm ppm mg/L Outfall partially submerged. No water entering pipe in upstream curb inlet. Pond sample collected due to prior detergent detections. units Temperature 74 ° F Graffiti:None Damage:None Erosion:None Deposition:Minor 2 Depth (in):5 Vegetation:None Benthic Growth:Severe Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:607 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2023 Inspection Date:8/23/2022 3:25:00 PM o20220823152424.JPG Previous Rainfall (hrs):72+Flow:Submerged, no flow Odor:Easily detected Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:8.55 Detergents:2.5 ppm ppm mg/L No flow escaping upstream curb inlet. Sample collected from outfall pool. Deteregent in pond, possibly from car wash. units Temperature 82 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:Severe Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:Slight Conductivity:835 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:EJK 2022 Inspection Date:8/17/2021 7:41:43 AM o20210817073912.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:7.4 Detergents:0.6 ppm ppm mg/L Outfall partially submerged. Traffic prevented screening of upstream inlet. Pond sample from end of pipe had detergent and elevated conductivity. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Non-illicit:Slight Conductivity:2580 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2021 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1205 City of Oshkosh Inspection Date:8/20/2020 8:54:14 AM o20200820085150.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Sediment wet, but no flow at time of inspection. No flow entering pipe at upstream curb inlet. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in): Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:10/8/2019 2:11:11 PM o20191008130940.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1205 US1. Detergent detected in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 2 Depth (in):5 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/25/2018 8:41:00 AM o20181025083538.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1205 US1. Detergent detected in upstream manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 2 Depth (in):5 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Inspection Date:10/3/2017 9:04:39 AM o20171003090114.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1205 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Minor 1 Depth (in):1 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1205 City of Oshkosh Inspection Date:10/18/2016 7:06:22 AM o20161018070408.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1205 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):2 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/28/2015 6:36:00 AM o20150928053734.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened at 16-1205 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:6/21/2012 12:32:35 PM o20120621113440.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall fully submerged; screened upstream at 16-1205 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):21 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1508 City of Oshkosh o20250925115412.JPG Outfall Notes: Westfield St storm sewer discharges to stream from south. Replaces outfall 16-487 (2011). Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):44 Width (in):72 Not Physically Located Easting:782,768 Northing:477,159 Longitude:-88.57692 Latitude:44.02846 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43539 Non-Priority Major Outfall NR 216 Class: Inspection Date:9/25/2025 11:57:02 AM Inspector:JCW o20250925115422.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, significant flow Odor:None Color:None Turbidity:None Floatables:None Sample ID:250925-27 Time Collected:11:55 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.36 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged flow inside pipe. units Temperature (field):75 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):18 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):893 µS/cm 2025 Page 1 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1508 City of Oshkosh Inspection Date:8/20/2020 7:37:18 AM o20200820073502.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1508 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):18 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:11/5/2019 8:20:00 AM o20191105082100.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 16-1508 US1. Detergent and ammonia in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):25 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2019 Inspection Date:10/8/2019 1:50:30 PM o20191008124948.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 16-1508 US1. Detergent and ammonia in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):25 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2019 Inspection Date:10/25/2018 9:02:26 AM o20181025090016.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1508 US1. Detergent and ammonia in manhole. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):29 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2018 Page 2 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1508 City of Oshkosh Inspection Date:10/17/2017 10:50:15 AM o20171017104638.JPG Previous Rainfall (hrs):48-72Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1508 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):26 Vegetation:None Benthic Growth:Moderate Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2017 Inspection Date:10/18/2016 7:30:34 AM o20161018072836.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Graffiti on south bridge abutment. Outfall partially submerged - screened upstream at 16-1508 US1. units Temperature --° F Graffiti:Moderate Damage:None Erosion:None Deposition:None Depth (in):21 Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2016 Inspection Date:9/28/2015 6:56:23 AM o20150928055850.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened at 16-1508 US1. Elevated ammonia. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):27 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:10/7/2014 10:55:47 AM o20141007095432.JPG Previous Rainfall (hrs):48-72Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged - screened upstream at 16-1508 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):23 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2014 Page 3 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1508 City of Oshkosh Inspection Date:9/5/2013 12:32:55 PM o20130905113702.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Significant duckweed. Outfall partially submerged. Outfall screened upstream at 16-1508 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):28 Vegetation:None Benthic Growth:Moderate Stains:Moderate Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Moderate Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/27/2012 12:57:15 PM o20120927115922.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Construction around outfall. Screened upstream at 16- 1508 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 9 Depth (in):15 Vegetation:None Benthic Growth:Slight Stains:Slight Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Repeat NotesInspector:JCW 2012 Inspection Date:5/30/2012 1:02:54 PM o20120530120256.JPG Previous Rainfall (hrs):72+Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged. Outfall screened upstream at 16-1508 US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):33 Vegetation:None Benthic Growth:None Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:Slight Non-illicit:Slight Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 4 of 4Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1628 City of Oshkosh o20250917113550.JPG Outfall Notes: Curb inlets from Washburn St discharge to riprap swale from east. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:779,963 Northing:478,418 Longitude:-88.58759 Latitude:44.03190 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43568 Priority Outfall NR 216 Class: Inspection Date:9/17/2025 11:39:25 AM Inspector:JCW o20250917113604.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sediment in pipe and apron wet, but no collectable flow. No flow leaving upstream curb inlet. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):1 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services 16-1628 City of Oshkosh Inspection Date:8/22/2024 12:41:52 PM o20240822124018.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L End of pipe and upstream curb inlet wet, but no collectable flow at time of inspection. Gross solids (litter) inside pipe. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:Moderate 3 Depth (in): Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Potential Gross Solids:Moderate Non-illicit:Moderate Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2024 Inspection Date:6/21/2012 12:41:46 PM o20120621114444.JPG Previous Rainfall (hrs):0-24Flow:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Outfall partially submerged; screened upstream at 16- 1204a US1. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:Slight Stains:None Ammonia:--ppm Sampling Results Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2012 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services FernauPond City of Oshkosh o20250925094830.JPG Outfall Notes: Detention basin discharges to stream from north via riprap channel. Location Map Major Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: PVC Diameter (in):18 Height/Depth (in): Width (in): Not Physically Located Easting:788,540 Northing:487,296 Longitude:-88.55500 Latitude:44.05628 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43388 Non-Priority Major Outfall NR 216 Class: Inspection Date:9/25/2025 9:50:27 AM Inspector:JCW o20250925094834.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. Corrosion on metal apron. Rust stains on PVC pipe. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:Minor Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services FernauPond City of Oshkosh Inspection Date:8/19/2020 7:44:03 AM o20200819074124.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.25 Detergents:0 ppm ppm mg/L Sample collected from concentrated flow immediately downstream of outfall. Elevated pH seemed widespread in open water. units Temperature 73 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):4 Vegetation:None Benthic Growth:Moderate Stains:Slight Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:450 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2020 Inspection Date:9/23/2015 12:40:27 PM o20150923114318.JPG Previous Rainfall (hrs):72+Flow:None Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L Pipe flowline dry at time of inspection. units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in): Vegetation:None Benthic Growth:None Stains:Moderate Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2015 Inspection Date:7/2/2013 7:12:18 AM o20130702061552.JPG Previous Rainfall (hrs):72+Flow:Submerged, slight flow Odor:None Color:None Turbidity:None Floatables:None Total Chlorine:0 Free Chlorine:0 pH:9.2 Detergents:0 ppm ppm mg/L Sample collected from submerged flow. units Temperature 72 ° F Graffiti:None Damage:None Erosion:None Deposition:None Depth (in):3 Vegetation:None Benthic Growth:None Stains:None Ammonia:0 ppm Sampling Results Submerged:Partially Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Non-illicit:None Conductivity:449 µS/cm in. Condition Assessment Type:Ongoing NotesInspector:JCW 2013 Inspection Date:9/2/2009 Osh09_DSCN6298.JPG Previous Rainfall (hrs):72+Flow:None Odor: Color: Turbidity: Floatables: Total Chlorine:-- Free Chlorine:-- pH:-- Detergents:-- ppm ppm mg/L units Temperature --° F Graffiti:None Damage:None Erosion:None Deposition:None 0 Depth (in):0 Vegetation: Benthic Growth:Slight Stains: Ammonia:--ppm Sampling Results Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids: Non-illicit:None Conductivity:--µS/cm in. Condition Assessment Type:Initial NotesInspector:JCW 2009 Page 2 of 2Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43347 City of Oshkosh o20250807083248.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:781,810 Northing:492,497 Longitude:-88.58062 Latitude:44.07053 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43347 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 8:34:49 AM Inspector:JCW o20250807083252.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe sediment wet, but no collectable flow at time of inspection. Scour hole at end of pipe level with pipe crown. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):6 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43361 City of Oshkosh o20250925084802.JPG Outfall Notes: Curb inlets from Lake Butte des Morts Dr discharge to wetland area to west. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:782,805 Northing:489,368 Longitude:-88.57682 Latitude:44.06195 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43361 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 8:50:15 AM Inspector:JCW o20250925084808.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43406 City of Oshkosh o20250917091156.JPG Outfall Notes: Curb inlets from Gibson Ct discharge to NE corner of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: HDPE Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,534 Northing:461,911 Longitude:-88.53216 Latitude:43.98665 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43406 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:14:59 AM Inspector:JCW o20250917091200.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron wet, but no collectable flow. Pipe clean, 2" sediment on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):2 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43443 City of Oshkosh o20250917092644.JPG Outfall Notes: Storm sewer from Gibson Ct discharges to north end of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: HDPE Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,894 Northing:461,756 Longitude:-88.53080 Latitude:43.98623 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43443 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:30:02 AM Inspector:JCW o20250917092648.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron sediment wet, but no collectable flow. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):1 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43456 City of Oshkosh o20250925074744.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:782,017 Northing:492,172 Longitude:-88.57983 Latitude:44.06964 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43456 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 7:48:25 AM Inspector:JCW o20250925074748.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43484 City of Oshkosh o20250807094458.JPG Outfall Notes: Storm sewer from Pauls Pl discharge to NE corner of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:771,761 Northing:471,697 Longitude:-88.61874 Latitude:44.01344 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43484 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 9:49:12 AM Inspector:JCW o20250807094502.JPG Previous Rainfall (hrs):72+ Flow Description:Trickle Odor:None Color:None Turbidity:None Floatables:Severe Sample ID:250807-85 Time Collected:09:47 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.64 Detergents:0 ppm ppm mg/L Notes:Sample collected from trickle flow from pipe. Algae from pond deposited on apron. units Temperature (field):78 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):989 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43543 City of Oshkosh o20250925090122.JPG Outfall Notes: Curb inlets from Lake Butte des Morts Dr discharge to wetland area to west. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:782,763 Northing:489,135 Longitude:-88.57698 Latitude:44.06131 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43543 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 9:03:17 AM Inspector:JCW o20250925090126.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sediment in pipe wet, but no collectable flow. 1" sediment in pipe, 8" berm at end of apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):1 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43603 City of Oshkosh o20250917124554.JPG Outfall Notes: Curb inlets on CTH Y median discharge to north ditch. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:791,284 Northing:497,046 Longitude:-88.54458 Latitude:44.08303 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43603 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 12:47:54 PM Inspector:JCW o20250917124558.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):6 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43616 City of Oshkosh o20250807080012.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:781,406 Northing:492,988 Longitude:-88.58216 Latitude:44.07187 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43616 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 8:04:03 AM Inspector:JCW o20250807080018.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe sediment dry. Scour hole at end of pipe level with pipe crown. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Severe Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):7 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43660 City of Oshkosh o20250917091416.JPG Outfall Notes: Curb inlets from Gibson Ct discharge to SE corner of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: HDPE Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,575 Northing:461,860 Longitude:-88.53201 Latitude:43.98651 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43660 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:17:20 AM Inspector:JCW o20250917091422.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe wet, but no collectable flow. 1/2" sediment in pipe, riprap on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):0.5 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43661 City of Oshkosh o20250925081614.JPG Outfall Notes: Storm sewer from Lake Butte des Morte Dr discharges to wetland area to west of road. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:782,399 Northing:491,158 Longitude:-88.57837 Latitude:44.06686 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43661 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 8:18:28 AM Inspector:JCW o20250925081620.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sediment in pipe and apron wet, but no collectable flow. Cattails on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):2 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43698 City of Oshkosh o20250807100308.JPG Outfall Notes: Storm sewer from Pauls Pl discharges detention basin on south side of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):24 Height/Depth (in): Width (in): Not Physically Located Easting:771,298 Northing:471,792 Longitude:-88.62050 Latitude:44.01370 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43698 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 10:05:55 AM Inspector:JCW o20250807100322.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:Severe Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron wet, but no collectable flow at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43703 City of Oshkosh o20250917090346.JPG Outfall Notes: Storm sewer from Gibson Ct discharges to NW corner of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: HDPE Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,291 Northing:461,860 Longitude:-88.53309 Latitude:43.98651 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43703 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:04:44 AM Inspector:JCW o20250917090350.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. Pipe clean, 7" deposition on apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):7 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43708 City of Oshkosh o20250917094934.JPG Outfall Notes: Storm sewer discharges to channel from south. Returns to pipe at South Park Ave. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in):36 Height/Depth (in): Width (in): Not Physically Located Easting:785,706 Northing:467,248 Longitude:-88.56572 Latitude:44.00128 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43708 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:54:38 AM Inspector:JCW o20250917094958.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250917-81 Time Collected:09:52 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.91 Detergents:0 ppm ppm mg/L Notes:Discharge from concrete vault - pipe not observed. Sample from outfall pool. units Temperature (field):75 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):12 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1328 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43713 City of Oshkosh o20250917092000.JPG Outfall Notes: Curb inlets from Gibson Ct discharge to south end of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: HDPE Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,795 Northing:462,088 Longitude:-88.53117 Latitude:43.98714 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43713 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:23:14 AM Inspector:JCW o20250917092008.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, no flow Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:End of pipe slightly submerged. Upstream curb inlet dry - no sample collected. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):0.5 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43800 City of Oshkosh o20250807103954.JPG Outfall Notes: Curb inlets from Wyldwood Dr discharge to east side of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: PVC Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:776,516 Northing:473,639 Longitude:-88.60067 Latitude:44.01878 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43800 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 10:41:37 AM Inspector:JCW o20250807104000.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43808 City of Oshkosh o20250917140130.JPG Outfall Notes: South detention basin discharges to south side of north detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):60 Height/Depth (in): Width (in): Not Physically Located Easting:792,441 Northing:484,351 Longitude:-88.54016 Latitude:44.04820 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43808 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 2:05:25 PM Inspector:JCW o20250917140156.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:Slight cloudiness Floatables:None Sample ID:250917-31 Time Collected:14:02 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.91 Detergents:0 ppm ppm mg/L Notes:No upstream screening location (pond to pond) - sample from outfall pool. units Temperature (field):82 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):15 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Severe Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):768 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43822 City of Oshkosh o20250805110508.JPG Outfall Notes: Storm sewer from river walk discharges to river from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:790,911 Northing:472,044 Longitude:-88.54595 Latitude:44.01444 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-43822 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 11:09:02 AM Inspector:JCW o20250805110514.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged - screened upstream at U-43822 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):30 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43822 US1 City of Oshkosh o20250805110836.JPG Outfall Notes: Upstream catchbasin located approximately 52 ft S of outfall U-43822. Intermediate area consists of riverwalk and shoreline. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:790,917 Northing:471,990 Longitude:-88.54593 Latitude:44.01430 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 09-792 NR 216 Class: Inspection Date:8/5/2025 11:11:47 AM Inspector:JCW o20250805110844.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Filter bag installed inside catchbasin for adjacent construction - no sample collected. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43837 City of Oshkosh o20250917143826.JPG Outfall Notes: Curb inlets from Algoma Blvd discharge to SW corner of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:783,932 Northing:487,798 Longitude:-88.57253 Latitude:44.05764 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43837 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 2:41:35 PM Inspector:JCW o20250917143834.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. 2" sediment on apron, pipe clear. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):2 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43845 City of Oshkosh o20250925092438.JPG Outfall Notes: Storm sewer from detention basin discharges to south ditch of Snell Rd. Ultimately discharges to outfall 12-2581 (U-44217). Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:783,382 Northing:491,579 Longitude:-88.57463 Latitude:44.06801 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43845 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 9:27:25 AM Inspector:JCW o20250925092450.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, no flow Odor:None Color:None Turbidity:None Floatables:Moderate Sample ID:250925-98 Time Collected:09:25 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.84 Detergents:0 ppm ppm mg/L Notes:No flow leaving apron. Sample from pool inside pipe. units Temperature (field):72 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):5 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):414 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43858 City of Oshkosh o20250807075242.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:781,242 Northing:493,176 Longitude:-88.58278 Latitude:44.07239 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43858 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 7:55:07 AM Inspector:JCW o20250807075246.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall pipe fully buried, with cattails. Junk tire next to pipe. Unable to screen outfall. Upstream catchbasin dry. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Severe Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):12 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43887 City of Oshkosh o20250805104350.JPG Outfall Notes: Storm sewer from river walk discharges to river from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:790,616 Northing:472,141 Longitude:-88.54707 Latitude:44.01471 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43887 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 10:47:39 AM Inspector:JCW o20250805104354.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged - screened upstream at U-43887 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):30 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43887 US1 City of Oshkosh o20250805104642.JPG Outfall Notes: Upstream catchbasin located approximately 31 ft SSW from outfall U-43887. Intermediate area consists of riverwallk and shoreline. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:790,604 Northing:472,113 Longitude:-88.54712 Latitude:44.01463 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 09-794 NR 216 Class: Inspection Date:8/5/2025 10:50:54 AM Inspector:JCW o20250805104648.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-63 Time Collected:10:47 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.79 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):82 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):26 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):368 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43942 City of Oshkosh Outfall Notes: Culvert from north swale of Shadow Ln / Miller Ln discharges to lake from north. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: CMP Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:796,371 Northing:488,612 Longitude:-88.52522 Latitude:44.05990 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: N/A Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 1:10:00 PM Inspector:JCW Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall not screened due to construction activity onsite. Screened upstream at U- 43942 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:Slight Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43942 US1 City of Oshkosh o20250917130322.JPG Outfall Notes: Upstream manhole located approx 209 ft NW of outfall U-43942. Intermeidate area consists of street right-of-way and residential property along waterfront. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:796,183 Northing:488,704 Longitude:-88.52593 Latitude:44.06015 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-102965 NR 216 Class: Inspection Date:9/17/2025 1:10:19 PM Inspector:JCW o20250917130328.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250917-74 Time Collected:13:05 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):7.74 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):81 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):7 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):935 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43975 City of Oshkosh o20250917084836.JPG Outfall Notes: Curb inlets from W Ripple Ave discharge to swale from south. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Elliptical Material: RCP Diameter (in): Height/Depth (in):24 Width (in):38 Not Physically Located Easting:790,635 Northing:454,507 Longitude:-88.54696 Latitude:43.96634 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43975 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 8:50:39 AM Inspector:JCW o20250917084848.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):2 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-43982 City of Oshkosh o20250807081246.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road.Black/white marker post. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:781,586 Northing:492,777 Longitude:-88.58147 Latitude:44.07130 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-43982 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 8:17:28 AM Inspector:JCW o20250807081458.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Scour hole at end of pipe level with pipe crown. Swarming bees at end of pipe prevented screening. Upstream curb inlet dry. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):4 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44005 City of Oshkosh o20250805103230.JPG Outfall Notes: Storm sewer from river walk discharges to river from south. Riprap cover located, but actual pipe not observed. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:790,477 Northing:472,226 Longitude:-88.54760 Latitude:44.01494 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-44005 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 10:36:07 AM Inspector:JCW o20250805103232.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at U-44005 US1. Riprap cover located. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44005 US1 City of Oshkosh o20250805103514.JPG Outfall Notes: Upstream catchbasin located approximately 51 feet SSW of outfall U-44005. Intermediate area consists of riverwalk and shoreline. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:790,452 Northing:472,182 Longitude:-88.54770 Latitude:44.01482 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 09-795 NR 216 Class: Inspection Date:8/5/2025 10:39:37 AM Inspector:JCW o20250805103520.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-49 Time Collected:10:36 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.52 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):82 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):36 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):388 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44011 City of Oshkosh o20250917100802.JPG Outfall Notes: South Park pond. Pipe likely discharge from upper pond (south) to downstream channel, bypassing weir at lower flows. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: PVC Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:789,059 Northing:469,605 Longitude:-88.55298 Latitude:44.00775 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44011 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 10:12:04 AM Inspector:JCW o20250917100816.JPG Previous Rainfall (hrs):72+ Flow Description:Substantial Odor:None Color:None Turbidity:None Floatables:None Sample ID:250917-95 Time Collected:10:10 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.08 Detergents:0 ppm ppm mg/L Notes:Sample collected from pipe flow. Pipe flowing full. units Temperature (field):77 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location:Flow Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):1275 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44026 City of Oshkosh o20250805154554_1.JPG Outfall Notes: Storm sewer from river walk discharges to river from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:791,760 Northing:471,908 Longitude:-88.54272 Latitude:44.01407 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44026 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 3:49:18 PM Inspector:JCW o20250805154554_2.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged. Filter fabric on upstream catchbasin - no sample collected. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44053 City of Oshkosh o20250925080412.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:782,341 Northing:491,471 Longitude:-88.57860 Latitude:44.06771 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44053 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 8:07:08 AM Inspector:JCW o20250925080420.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44062 City of Oshkosh o20250917090654.JPG Outfall Notes: Storm sewer from Gibson Ct discharges to north end of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: PVC Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,344 Northing:461,864 Longitude:-88.53289 Latitude:43.98652 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44062 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:09:54 AM Inspector:JCW o20250917090658.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe and apron sediment wet, but no flow at time of inspection. 1" sediment in pipe, 12" sediment end of apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):1 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44085 City of Oshkosh o20250807072400.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge to wetland south of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:780,346 Northing:493,826 Longitude:-88.58619 Latitude:44.07417 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44085 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 7:26:00 AM Inspector:JCW o20250807072406.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe sediment dry. Scour hole at end of pipe level with pipe crown. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):5 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44101 City of Oshkosh o20250807100830.JPG Outfall Notes: Outlet from detention basin north of Pauls Pl discharges to north. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):18 Height/Depth (in): Width (in): Not Physically Located Easting:771,336 Northing:471,988 Longitude:-88.62036 Latitude:44.01423 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44101 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 10:10:34 AM Inspector:JCW o20250807100838.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outlet pipe dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Slight Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44109 City of Oshkosh o20250917093228.JPG Outfall Notes: Curb inlets from Beachcomber St discharge to east end of dry pond. Location Map Supplemental Outfall Discharge Location: Non-MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: HDPE Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:794,631 Northing:461,594 Longitude:-88.53180 Latitude:43.98578 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44109 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 9:33:48 AM Inspector:JCW o20250917093238.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. Riprap on apron. Piled branches obstructing. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44117 City of Oshkosh o20250807074126.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:780,987 Northing:493,472 Longitude:-88.58375 Latitude:44.07320 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44117 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 7:43:40 AM Inspector:JCW o20250807074130.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe sediment dry. Scour hole at end of pipe level with pipe crown. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):5 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44119 City of Oshkosh o20250807073136.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge to wetland south of road. Location Map Supplemental Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:780,702 Northing:493,714 Longitude:-88.58484 Latitude:44.07386 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44119 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/7/2025 7:34:11 AM Inspector:JCW o20250807073144.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe sediment dry. Scour hole at end of pipe level with pipe crown. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):5 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44131 City of Oshkosh o20250805105230.JPG Outfall Notes: Storm sewer from river walk discharges to river from west. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):30 Height/Depth (in): Width (in): Not Physically Located Easting:790,645 Northing:471,958 Longitude:-88.54696 Latitude:44.01421 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: U-44131 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 10:56:17 AM Inspector:JCW o20250805105236.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged (not located) Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged and not located - screened upstream at U-44131 US1. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Outfall Not Located Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44131 US1 City of Oshkosh o20250805105258.JPG Outfall Notes: Upstream catchbasin located approximately 27 ft W of outfall U-44131. Intermediate area consists of riverwalk and shoreline. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Inlet/Catchbasin Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:790,618 Northing:471,964 Longitude:-88.54706 Latitude:44.01422 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: 09-793 NR 216 Class: Inspection Date:8/5/2025 10:58:18 AM Inspector:JCW o20250805105302.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-55 Time Collected:10:54 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):8.09 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. units Temperature (field):82 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):41 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location:Pool Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):790 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44142 City of Oshkosh o20250925075516.JPG Outfall Notes: Curb inlets on Lake Butte des Morts Dr discharge west of road. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:782,195 Northing:491,829 Longitude:-88.57915 Latitude:44.06870 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44142 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 7:57:31 AM Inspector:JCW o20250925075522.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sediment in pipe wet, but no collectable flow at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):5 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44156 City of Oshkosh o20250917144324.JPG Outfall Notes: Curb inlets from Algoma Blvd discharge to south end of detention basin via riprap swale. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:783,974 Northing:487,662 Longitude:-88.57237 Latitude:44.05727 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44156 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 2:46:36 PM Inspector:JCW o20250917144330.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sediment inside pipe dry. Garbage trapped by grate. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):2 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Slight Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:Slight Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44189 City of Oshkosh o20250917133140.JPG Outfall Notes: Curb inlets from N Main St discharge to SE corner of detention basin. Location Map Supplemental Outfall Discharge Location: MS4 Stormwater Facility Structure Type: Pond Inlet Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:792,998 Northing:484,385 Longitude:-88.53804 Latitude:44.04830 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44189 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/17/2025 1:34:35 PM Inspector:JCW o20250917133146.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. Dark stain on apron flowline. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:Severe Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-44238 City of Oshkosh o20250925083422.JPG Outfall Notes: Curb inlets from Lake Butte des Morts Dr discharge to wetland area to west. Location Map Minor Outfall Discharge Location: Downstream Outfall Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:782,763 Northing:489,642 Longitude:-88.57698 Latitude:44.06270 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-44238 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:9/25/2025 8:41:29 AM Inspector:JCW o20250925083432.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Sediment in pipe wet, but no collectable flow. 3" sediment in pipe, 12" berm at end of apron. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Moderate Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):3 Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-110530 City of Oshkosh o20250805145158.JPG Outfall Notes: Storm sewer from river walk and upstream area discharges to river from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):96 Height/Depth (in): Width (in): Not Physically Located Easting:793,893 Northing:470,802 Longitude:-88.53461 Latitude:44.01104 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-110530 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 2:55:13 PM Inspector:JCW o20250805145204.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged - screened upstream at U-110530 US1. Slightly elevated pH in upstream manhole. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:Minor Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in):6 Depth (in):64 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:Moderate Green Brown Stains:Moderate Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location: Illicit Discharge Potential:Potential Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-110530 US1 City of Oshkosh o20250805145418.JPG Outfall Notes: Upstream manhole located approx 72 ft SW of outfall U-110530. Intermediate area consists of street right-of-way and shoreline. Location Map Minor Outfall - Alternate Location Discharge Location: Downstream Outfall Structure Type: Manhole Shape: Manhole/Catchbasin Material: Manhole - concrete Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:793,849 Northing:470,746 Longitude:-88.53478 Latitude:44.01089 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-101169 NR 216 Class: Inspection Date:8/5/2025 3:00:05 PM Inspector:JCW o20250805145424.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID:250805-39 Time Collected:14:55 Total Chlorine (field):0 Free Chlorine (field):0 pH (field):9.08 Detergents:0 ppm ppm mg/L Notes:Sample collected from submerged pool in manhole. Slightly elevated pH in sample, likely from algae bloom in river. units Temperature (field):83 ° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in):73 Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):0 ppm Sampling Results Physical Condition Assessment Submerged:Partially Sample Location:Pool Illicit Discharge Potential:Potential Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):357 µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-110619 City of Oshkosh o20250805122942.JPG Outfall Notes: East ditch of Bradley St discharges to stream from south. Screened at culvert. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):15 Height/Depth (in): Width (in): Not Physically Located Easting:792,811 Northing:461,152 Longitude:-88.53871 Latitude:43.98457 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-110619 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 12:32:18 PM Inspector:JCW o20250805122946.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Pipe dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-110619w City of Oshkosh o20250805122610.JPG Outfall Notes: West ditch of Bradley St discharges to stream from south. Inaccessible due to security fence. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Open Channel Outfall Shape: Channel - Other Material: Channel - riprap Diameter (in): Height/Depth (in): Width (in): Not Physically Located Easting:792,757 Northing:461,137 Longitude:-88.53891 Latitude:43.98453 County Coordinates:Latitude/Longitude:Mapping Precison: Desktop mapping estimate Dimensions City ID: N/A Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 12:29:22 PM Inspector:JCW o20250805122620.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Screened through security fence. Riprap channel leading to stream was dry at time of inspection. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-111659 City of Oshkosh o20250805123324.JPG Outfall Notes: Storm sewer from Bradley St discharges to stream culvert from north. Screened at manhole. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):12 Height/Depth (in): Width (in): Not Physically Located Easting:792,777 Northing:461,187 Longitude:-88.53884 Latitude:43.98466 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-111659 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 12:37:33 PM Inspector:JCW o20250805123434.JPG Previous Rainfall (hrs):72+ Flow Description:None Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Incoming pipe dry and clean . units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:None Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-112427 City of Oshkosh o20250805150912.JPG Outfall Notes: Storm sewer from river walk discharges to river from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):36 Height/Depth (in): Width (in): Not Physically Located Easting:793,303 Northing:471,252 Longitude:-88.53686 Latitude:44.01227 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-112427 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 3:12:25 PM Inspector:JCW o20250805150918.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged. Upstream manhole located inside construction fence, so no sample collected. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services U-112428 City of Oshkosh o20250805150246.JPG Outfall Notes: Storm sewer from river walk discharges to river from south. Location Map Minor Outfall Discharge Location: Water of the State Structure Type: Closed Pipe Outfall Shape: Pipe - Circular Material: RCP Diameter (in):36 Height/Depth (in): Width (in): Not Physically Located Easting:793,630 Northing:471,023 Longitude:-88.53562 Latitude:44.01165 County Coordinates:Latitude/Longitude:Mapping Precison: Mapping GPS Dimensions City ID: U-112428 Non-Priority Non-Major Outfall NR 216 Class: Inspection Date:8/5/2025 3:06:03 PM Inspector:JCW o20250805150252.JPG Previous Rainfall (hrs):72+ Flow Description:Submerged, indeterminate Odor:None Color:None Turbidity:None Floatables:None Sample ID: Time Collected: Total Chlorine (field):-- Free Chlorine (field):-- pH (field):-- Detergents:-- ppm ppm mg/L Notes:Outfall fully submerged. Upstream manhole located inside construction fence, so no sample collected. units Temperature (field):--° F Inspection Type:Ongoing Graffiti:None Damage:None Erosion:None Deposition:None Displacement Corrosion Undercut Cracks/Structural Damage Crushed Depth (in): Depth (in): Petrol. Sheen Suds Sewage Algae Other ChlorinePetroleumMusty Fishy Sewage SulfurVOC/Solvent Fragrant Other Vegetation:None Inhibited Excessive Benthic Growth:None Green Brown Stains:None Flow Line Paint Oil Rust Stains Other Ammonia (field):--ppm Sampling Results Physical Condition Assessment Submerged:Fully Sample Location: Illicit Discharge Potential:Unlikely Gross Solids:None Litter Veg. Debris Sediment Other Non-illicit:None Natural Suds/FoamNatural Sheen Conductivity (field):--µS/cm 2025 Page 1 of 1Checked by:JCW - 12/1/2025 © 2025 Westwood Professional Services Appendix D Outfall Condition Summary D-1 Outfalls with Damage D-2 Outfalls with Deposition D-3 Outfalls with Erosion D-4 Outfalls with Graffiti OUTFALL CONDITION ASSESSMENTS While not required for the illicit discharge field screening, Westwood inspectors noted the presence of any visual structural damage, significant deposition or erosion, or graffiti at the outfalls. This information can be passed along to the appropriate personnel for any necessary action. Damage Five outfalls showed signs of damage that may require attention in the near future. Observed damage included pipe joint displacement, broken pipes and aprons, and corrosion. The outfall damage that was observed during the ongoing screening program is summarized in Table 1. Table 1 – Outfalls with damage Outfall Severity Description 06-2947 Minor Concrete apron displaced 1” 13-2563 Minor Northwest corner of concrete apron broken 13-68 Moderate Corrosion on metal apron 16-941 Moderate Grate from apron detached and laying on pond bottom FernauPond Minor Corrosion on metal apron The outfall damage is shown in the photos that follow. The locations of the damaged outfalls are shown on the map in Appendix D. Figure 1 – Outfall 06-2647 Figure 2 – Outfall 13-2563 Figure 3 – Outfall 13-68 Figure 4 – Outfall 16-941 Figure 5 – Outfall FernauPond Deposition A total of 30 outfalls showed minor, moderate, or severe deposition at the end of the outfall pipe or channel, or inside the upstream screening location. As deposition increases, flow may become restricted in the pipe or downstream channel. Outfalls with moderate or severe deposition may need to undergo maintenance to remove the deposited sediment and debris and maintain proper flow. The outfall deposition that was observed during the ongoing screening program is summarized in Table 2. Table 2 – Outfalls with deposition Outfall Severity Description 06-2947 Minor 1” sediment on apron 13-1098 Moderate 15” sediment inside pipe 13-1552 Moderate 8” sediment inside pipe 13-1588 Minor 2” sediment inside pipe and apron 13-471 Minor Rocks (channel riprap) inside pipe 13-68 Minor 1” sediment on apron Outfall Severity Description 15-3373 Minor 3” sediment inside pipe and apron 16-1628 Minor 1” sediment inside pipe and apron 16-995 Moderate 16” berm immediately downstream blocking flow; pipe clear U-43347 Moderate 6” sediment inside pipe; downstream channel even with pipe crown U-43406 Minor 2” sediment on apron U-43443 Minor 1” sediment inside pipe and apron U-43543 Minor 1” sediment inside pipe; 8” berm at end of apron U-43603 Moderate 6” sediment inside pipe U-43616 Severe 7” sediment inside pipe; downstream channel even with pipe crown U-43660 Minor 0.5” sediment inside pipe; riprap on apron U-43661 Minor 2” sediment inside pipe and apron U-43703 Minor 7” sediment on apron; pipe clear U-43837 Minor 2” sediment on apron; pipe clear U-43858 Severe 12” sediment inside pipe – fully buried, with cattails U-43975 Minor 2” sediment inside pipe and apron U-43982 Moderate 4” sediment inside pipe; bee nest in area U-44062 Minor 1” sediment inside pipe; 4” berm on apron U-44085 Moderate 5” sediment inside pipe; downstream channel even with pipe crown U-44117 Moderate 5” sediment inside pipe; downstream channel even with pipe crown U-44119 Moderate 5” sediment inside pipe; downstream channel even with pipe crown U-44142 Moderate 5 sediment inside pipe and apron U-44156 Minor 2” sediment inside pipe U-44238 Moderate 3” sediment inside pipe; 12” berm on apron U-110530 Minor 6” sediment inside pipe The outfall deposition is shown in the photos that follow. The locations of the outfalls with deposition are shown on the map in Appendix D. Figure 6 – Outfall 06-2947 Figure 7 – Outfall 13-1098 Figure 8 – Outfall 13-1552 Figure 9 – Outfall 13-1588 Figure 10 – Outfall 13-471 Figure 11 – Outfall 13-68 Figure 12 – Outfall 15-3373 Figure 13 – Outfall 16-1628 Figure 14 – Outfall 16-995 Figure 15 – Outfall U-43347 Figure 16 – Outfall U-43406 Figure 17 – Outfall U-43443 Figure 18 – Outfall U-435435 Figure 19 – Outfall U-43603 Figure 20 – Outfall U-43616 Figure 21 – Outfall U-43660 Figure 22 – Outfall U-43661 Figure 23 – Outfall U-43703 Figure 24 – Outfall U-43837 Figure 25 – Outfall U-43858 Figure 26 – Outfall U-43975 Figure 27 – Outfall U-43982 Figure 28 – Outfall U-44062 Figure 29 – Outfall U-44085 Figure 30 – Outfall U-44117 Figure 31 – Outfall U-44119 Figure 32 – Outfall U-44142 Figure 33 – Outfall U-44156 Figure 34 – Outfall U-44238 Figure 35 – Outfall U-110530 Erosion Three of the outfalls showed signs of erosion at the end of the outfall pipe or channel. Most outfalls with minor erosion could be repaired with minor landscaping repairs. Those outfalls with moderate or severe erosion may need additional structural reinforcement, such as turf reinforcement mat or riprap. The erosion that was observed during the ongoing screening program is summarized in Table 3. Table 3 – Outfalls with erosion Outfall Severity Description 03-22 Moderate Sinkholes behind concrete retaining wall over pipe 12-925 Minor Scour hole in channel immediately downstream of pipe 13-471 Moderate Downstream channel erosion The outfall erosion is shown in the photo that follows. The location of the outfall with erosion is shown on the map in Appendix D. Figure 36 – Sinkholes behind wall at outfall 03-22 Figure 37 – Scour hole downstream of outfall 12-925 Figure 38 – Channel erosion downstream of outfall 13-471 Graffiti Graffiti was observed in or around two outfalls. The graffiti was not severe but should probably be monitored to make sure that it does not become more severe. The graffiti that was observed during the ongoing screening program is summarized in Table 4. Table 4 – Outfalls with graffiti Outfall Severity Description 12-569 Moderate Graffiti on bridge abutment near outfall 16-844 Severe Graffiti on bridge abutments near outfall – both sides of stream The graffiti is shown in the photos that follow. The locations of the outfalls with graffiti are shown on the map in Appendix C. Figure 39 – Abutment near outfall 12-569 Figure 40 – Abutment near outfall 16-844 ! ! ! ! ! ! ! ! ! ! ! FernauPond 13-68 16-941 13-2563 06-2947 Damage Severity !Minor (3) !Moderate (2) !Severe (0) F:\ENVIRO\IDDE\GIS\Cond_Damage_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.D-1 SCALE:1 " = 7,000 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN OUTFALLS WITH DAMAGE.Date:12/16/2024 Printed: JCWeis 11/26/2025 2:36:01 PM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! !!!!!!! ! ! ! !!!!! 13-68 13-1098 13-471 16-995 13-1588 13-1552 16-1628 06-2947 15-3373 U-110530 U-44156U-43837 U-43543 U-44238 U-43603 U-43975 Deposition Severity !Minor (17) !Moderate (11) !Severe (2) F:\ENVIRO\IDDE\GIS\Cond_Deposition_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.D-2 SCALE:1 " = 7,000 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN OUTFALLS WITH DEPOSITION.Date:11/26/2025 Printed: JCWeis 11/26/2025 2:59:19 PM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ! !! ! ! ! ! ! ! U-43661 U-44085 U-44119 U-44117U-43858U-43616 U-43982U-43347 U-44142 ! !! ! !U-43443U-43703 U-44062 U-43406U-43660 ! ! ! ! ! ! ! ! ! 12-925 13-471 03-22 Erosion Severity !Minor (1) !Moderate (2) !Severe (0) F:\ENVIRO\IDDE\GIS\Cond_Erosion_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.D-3 SCALE:1 " = 7,000 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN OUTFALLS WITH EROSION.Date:11/26/2025 Printed: JCWeis 12/2/2025 9:33:05 AM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com ! ! ! ! ! ! ! ! 16-844 12-569 Graffiti Severity !Minor (0) !Moderate (1) !Severe (1) F:\ENVIRO\IDDE\GIS\Cond_Graffiti_Oshkosh.mxd PROJECT NO.R3000958.03 FIGURE NO.D-4 SCALE:1 " = 7,000 'Project Manager: Project Engineer: Drawn By:JCWChecked By: 2025 IDDE ONGOING SCREENING PROGRAM CITY OF OSHKOSHWINNEBAGO COUNTY, WISCONSIN OUTFALLS WITH GRAFFITI.Date:11/26/2025 Printed: JCWeis 11/26/2025 3:06:50 PM 1 Systems DriveAppleton, WI 54914 (920) 735-6900www.westwoodps.com Work Product Report | Project Name Month Day, Year 1 | Confidential and Proprietary. TBPLS Firm #10074302 v City of Oshkosh IDDE Program as of: December 16, 2025 City of Oshkosh IDDE Program 2025 Page 1 2/18/2026 City of Oshkosh, WI Illicit Discharge Detection and Elimination (IDDE) Program Municipal Separate Storm Sewer System Program Overview and Goals The goals of the City of Oshkosh’s IDDE program are to: 1) Reduce storm water pollution to the nearby receiving waters including Lake Butte des Morts, Fox River, Sawyer Creek, Campbell Creek, and Lake Winnebago. 2) Prevent non-storm water contaminants or flows from entering the municipal storm sewer system. Non-storm water flows consist of (but are not limited to): sanitary sewer flows, industrial process wastewater, accidental spills or intentional dumping of liquid or solid material that enters the storm sewer system, or any discharge into the city’s storm sewer system that is not composed entirely of storm water, except as allowed by the City of Oshkosh Municipal Code Chapter 14 . 3) Maintain an efficient and structurally sound municipal separate storm sewer system. 4) Comply with state and federal regulations as defined in the City’s MS4 Permit. This IDDE Program document describes the City’s program as required by MS4 Permit Section 3.4 to develop a program related to Permit Sections 2.3.2 to 2.3.6 (see Attachment 1). The City’s Illicit Discharge Ordinance is contained in Articles V and VI of Chapter 14 – Storm Water Management in the City of Oshkosh Municipal Code. Components of the City’s IDDE Program 1. IDDE Field Screening Responsible Position: DPW / Engineering Division; Civil Engineering Supervisor Current Position Staff: Alyssa Deckert; Phone: (920) 236-5065 Email: adeckert@oshkoshwi.gov Program Description: The City contracts with a qualified professional services provider to conduct the IDDE dry weather field screening of the City’s MS4 outfalls in compliance with Section 2.3.2 of the MS4 Permi t. The contracted provider conducts the field work, provides an annual written document of the results of the dry weather screening, and conducts a presentation to the City’s Storm Water Appeals Board in the spring of each year summarizing the previous year’s field work. The annual field screening is conducted as follows: 1) Annual Field Screening – classification of outfalls and schedule a) Priority outfalls are screened every year. Priority outfalls are those outfalls identified with the highest potential for illicit discharge. Priority outfalls are identified based upon the following criteria: i) History of known or suspected illicit discharges within the past 5 years ii) Outfalls with greater than 80% impervious area within the drainage area iii) Outfalls with highly industrial or commercial land use within the drainage area. City of Oshkosh IDDE Program as of: December 16, 2025 City of Oshkosh IDDE Program 2025 Page 2 2/18/2026 b) Non-priority major outfalls are screened once every five years. Non-priority, major outfalls are those outfalls with an inside diameter greater than or equal to 36” diameter or equivalent. c) Non-priority, minor outfalls are screened once every ten years. Non-priority minor outfalls are outfalls with an inside diameter less than 36” diameter or equivalent. d) Supplemental outfalls are additional screening locations that do not meet the legal definition of an outfall according to the MS4 general permit. These locations are generally detention basin inlets. The supplemental outfalls are screened based on further classification as either priority, non-priority major, or non-priority minor outfalls. e) Screening points are located at the outfall, or if submerged at the nearest accessible upstream manhole location. Table 1 shows the status of storm sewer outfalls for the entire City of Oshkosh. Table 1: Storm Sewer Outfalls for the Entire City of Oshkosh Status as of 2025 Field Season Major/Minor Classification No. of Outfalls Prioritization Classification No. of Outfalls Major Outfalls 97 Priority Outfalls 34 Minor Outfalls 292 Non-Priority Major Outfalls 84 Supplemental Outfalls 160 Non-Priority Non-Major Outfalls 431 Total 549 Total 549 2) The contracted firm notifies the Engineering Division when annual IDDE screening is scheduled. 3) The contracted firm conducts field screening procedures at the scheduled outfalls and collects information from the screening process. (See Attachment 2 for example field data collection sheet). Field screening procedures are informed by the “Illicit Discharge Detection and Elimination: A guidance Manual for Program Development and Technical Assessments” (Center for Watershed Protection / Robert Pitt, October 2004) as well as the WDNR’s Illicit Discharge Detection and Elimination guidance document (March 2012). Field screening procedures have evolved after several years of experience to meet permit screening requirements and parameters as discussed with and approved by the WDNR. Details on the screening procedures employed can be found in the latest “Ongoing Screening Summary Report”. 4) The contracted firm notifies the Engineering Division when IDDE screening is completed and prepares an annual report. 5) The contracted firm provides a written report by February of each year documenting the results of the field screening conducted the previous year. The report includes: a) Dates, times, and locations of outfalls screened. b) Weather conditions c) Visual observations (trash, flow, color, odor, turbidity, oil sheen or surface scum, other evidence of non-storm water discharge d) Field parameters measured (pH, chlorine, detergents, ammonia, temperature, conductivity). e) Physical conditions of outfall structure City of Oshkosh IDDE Program as of: December 16, 2025 City of Oshkosh IDDE Program 2025 Page 3 2/18/2026 2. Response to Spills and Reports of Illicit Discharge / IDDE Source Investigation and Elimination Responsible Position: DPW / Engineering Division; Civil Engineering Supervisor Current Position Staff: Alyssa Deckert; Phone: (920) 236-5065 Email: adeckert@oshkoshwi.gov Program Description: 1) The Engineering Division may be notified of an Illicit Discharge or Spill primarily from two sources: a. If, during the annual IDDE screening, the Contractor field crew finds an obvious illicit discharge (e.g.: a direct connection of a sanitary lateral, illegal spill, or other evidence) the field crew will document the situation with photographs and test data and immediately notify City’s Engineering Division. b. Direct communication from a citizen and/or City field staff person may notify the Engineering Division of an observed condition. The City has information posted on its website on how to report spills and illicit discharges. Illicit discharges may be reported through Connect Oshkosh or through direct contact to the Engineering Division. 2) The City has authority to prohibit illicit discharges and carry out inspections, monitoring, and enforcement measures necessary to ensure compliance with this program through the City’s Illicit Discharge Ordinance sections in Articles V and VI of Chapter 14 – Storm Water Management in the City of Oshkosh Municipal Code. 3) If a hazardous or explosive potential exists, the contracted firm notifies the City Engineering Division of a potentially dangerous situation and the City Engineering Division contacts the Oshkosh Fire Department (920-236-5240 or 911) for emergency procedures to prevent further release of material, contain, cleanup, and dispose of material. 4) If the spill or release of a hazardous substance does not qualify as an exemption (see Attachment 3) the City Engineering Division immediately calls the WDNR spills hotline (1 -800-943-0003). 5) If a spill qualifies as an exemption, City staff conduct clean up procedures, WDNR notification is not required. 6) If a non-emergency situation exists, the City Engineering Division contacts the DPW Streets Division, Building/Plumbing Inspector, or other staff as needed to investigate the situation. The City will use storm sewer system mapping and other information to track the discharge upstream to its source. The contracted firm’s field crew may assist as needed but generally turns over the investigation to City. 7) Tracking of potential illicit discharges may result in detecting and eliminating cross-connections and leakage from sanitary conveyance systems into the MS4. The City’s annual sanitary and storm sewer televising program supplements the IDDE field screening and periodically identifies cross-connections between sanitary conveyances systems and the MS4. When a potential cross- connection is observed the City’s televising team contacts the Engineering Division for follow -up investigation and corrective actions. City of Oshkosh IDDE Program as of: December 16, 2025 City of Oshkosh IDDE Program 2025 Page 4 2/18/2026 8) If during investigative efforts, dye testing is used, the City will provide notice to the WDNR as well as the Oshkosh Police and/or Fire Department in advance of dye testing due to the likelihood of dye appearing in waterways and being observed and reported as an illicit discharge or spill. 9) If the non-emergency situation involves a neighboring municipality (discharges to, or coming from), the City will contact that municipality within one working day. Town of Algoma Margaret Mahoney Town Administrator (920) 235-3789 Town of Black Wolf Thomas Coppola Storm water Utility District Chairperson (920) 688-1404 Town of Nekimi Glen Barthels Town Chairman (920) 426-5811 Town of Oshkosh Jim Erdman Town Chair (920) 233-3618 Town of Vinland Don O’Connell Town Chairman (920) 235-6953 10) The City will then address the identified problem to terminate the illicit discharge and/or connection. This can take several forms from direct action by the City staff, to securing additional resources to implement a fix, to working with a landowner to mitigate an existing situation. 11) The City’s goal is to eliminate the identified discharge as soon as possible (with a target of three working days to the maximum extent practicable). If it will take the City more than 30 days to remove an illicit connection, or if the potential illicit discharge is from a facility with WPDES permit coverage, the WDNR will be contacted to discuss an appropriate action and/or timefram e for removal. The City will keep the WDNR informed of progress and take appropriate steps to remedy the situation, including when the situation is corrected. 12) IDDE screening and response procedures are documented by the City (including dates and locations of IDDE screenings, reports of alleged illicit discharges/date of report/follow -up actions taken, dates of discovery of illicit discharges, identification of outfalls or other areas where illicit discharges have been discovered, sources (including description of the responsible party) of illicit discharges (if known) and actions taken/dates to address discovered illicit discharges) and kept on file for annual reporting or other future reporting or follow-up reasons. City of Oshkosh Post-Construction Storm Water Program as of: December, 18 2025 City of Oshkosh Post Construction Storm Water Program-Final.docx Page 1 2/18/2026 City of Oshkosh, WI Post-Construction Storm Water Management Program Municipal Separate Storm Sewer System Program Overview and Goals The goals of the City of Oshkosh’s Post-Construction Storm Water Management program are to: 1) Reduce stormwater pollution to the nearby receiving water including Lake Butte des Morts, Fox River, Sawyer Creek, Campbell Creek, and Lake Winnebago. 2) Maintain or reduce extent of flooding. 3) Support development while maintaining an efficient and structurall y sound municipal separate storm sewer system. 4) Comply with state and federal regulations as defined in the City’s MS4 Permit. This Post-Construction Storm Water Management Program document describes the City’s program as required by MS4 Permit Section 3.6 to develop a program related to Permit Section 2.5.2 to 2.5.4 (see Attachment 1). The City’s Post-Construction Storm Water Management Ordinance is contained in Article IV of Chapter 14 – Storm Water Management in the City of Oshkosh Municipal Code. Components of the City’s Post-Construction Storm Water Management Program 1. Administrative Procedures Responsible Position: DPW / Engineering Division; Civil Engineering Supervisor Current Position Staff: Alyssa Deckert; Phone: (920) 236-5065 Email: adeckert@oshkoshwi.gov Program Description: The City’s program for administration of the post-construction storm water management program, including the process for obtaining local approval and responding to complaints, is as follows: 1) The process for obtaining local approval for post-construction storm water management is as follows: a. All projects requiring a City of Oshkosh permit/approval are administered through the City of Oshkosh Online Permitting and Planning Services (Evolve System): https://www.ci.oshkosh.wi.us/EvolvePublic/ b. The plan submittal and approval process are conducted through the Evolve System. c. This process is more fully described below in 2. Storm Water Management Plan Review section of this document. City of Oshkosh Post-Construction Storm Water Program as of: December, 18 2025 City of Oshkosh Post Construction Storm Water Program-Final.docx Page 2 2/18/2026 2) The City manages and responds to post construction storm water management complaints as follows: a. Complaints are received regarding post-construction storm water management through multiple paths. i. The City’s Connect Oshkosh system is used by citizens to report non-emergency neighborhood issues. ii. Complaints are received by phone calls, or emails, from residents or other City Staff to the Engineering Division. b. When a post-construction stormwater management complaint is received, it is directed to the responsible position for this procedure (DPW / Engineering Division; Civil Engineering Supervisor). The Civil Engineering Supervisor may then respond appropriately, or delegate follow-up and response to a qualified individual within the Department of Public Works. This may vary based on the nature of the complaint. c. Response to a post-construction storm water management complaint may vary based on the nature of the issue. Response procedures may include one or more of the following: i. Contacting the site owner, or responsible party for the site. ii. Site inspection. iii. Review of past storm water management plans and/or drainage plans for the site. iv. Enforcement action, if warranted after, may be taken after other response(s) to complaint. d. Complaints and follow-up responses are tracked through Connect Oshkosh, the City’s MS4 PermiTrack software, Reports made through Survey123 (ArcGIS Online) and saved onto server. 2. Storm Water Management Plan Review Responsible Position: DPW / Engineering Division; Civil Engineering Supervisor Current Position Staff: Alyssa Deckert; Phone: (920) 236-5065 Email: adeckert@oshkoshwi.gov Program Description: The procedure for storm water management plan review and approval is as follows: 1) Pre-submittal Meeting: a. A pre-submittal meeting is required prior to site plan submittal with the City’s Development Review Coordinator. This meeting may be waived based on the complexity of the project and/or the applicant’s knowledge of the City’s development requirements. City of Oshkosh Post-Construction Storm Water Program as of: December, 18 2025 City of Oshkosh Post Construction Storm Water Program-Final.docx Page 3 2/18/2026 b. Additionally, for projects that require post-construction storm water management, a pre- submittal meeting with City Engineering staff is required. This meeting may be combined with the pre-submittal meeting under Item a. above. c. Pre-submittal meetings are attended by the Civil Engineering Supervisor (Responsible Position for this procedure). Additional staff from the Engineering Division may attend at the discretion of the supervisor. 2) Applicant submittal: a. The applicant uploads application materials into the Evolve System. b. Alternatively, materials are provided to City of Oshkosh Permitting and Planning Services Staff, who in turn upload into the Evolve System. c. This process may occur multiple times for a single project. If initial submittals are determined to be insufficient (see #3 below), resubmittal is required. 3) Review of submittal: a. The Engineering Division / Civil Engineering Supervisor is notified of a submittal. The submittal is assigned to a qualified individual for review of stormwater components. Review may be conducted by Engineering Division staff or a contracted qualified professional (Consultant). b. The submittal materials are reviewed for compliance with Article IV of Municipal Code Chapter 14. Review of construction site erosion control and post-construction storm water management is conducted simultaneously. c. The submittal is discussed at the next weekly Site Plan Review Meeting following the submittal. Meetings are typically held Mondays at 1:00 p.m. Site Plan Review Meeting attendees may include; i. Engineering Division Manager / City Engineer ii. Civil Engineering Supervisor iii. Engineering Division Staff (including those responsible review of general Civil submittal components) iv. Contracted qualified professional v. Planning Division staff d. Discussion at the weekly Site Plan Review Meeting allows collaborative input from multiple reviewers and discussion of site with Engineering Division leaders. e. Following Site Plan Review Meeting, the review of the submittal is finalized. The outcome of review is one of the following: i. Not Approved: Site is deemed to not meet the requirements of Municipal Code Chapter 14. Review comments are provided to the applicant. City of Oshkosh Post-Construction Storm Water Program as of: December, 18 2025 City of Oshkosh Post Construction Storm Water Program-Final.docx Page 4 2/18/2026 ii. Conditional: Site is deemed to meet the requirements of Municipal Code Chapter 14. An approval letter is provided to the applicant. Minor comments may remain, most typically they are associated with items to be completed by the end of construction. Frequent conditional approval comments include: 1. Requirement for a final site inspection and preparation of as-built drawings / certification. 2. Requirement for execution of an operation and maintenance agreement. iii. Approved: Site is deemed to meet the requirements of Municipal Code Chapter 14. An approval letter is provided to the applicant. iv. Hold: Outstanding items are identified. The review is placed on hold and the applicant is contacted (via email) to request additional materials to be submitted that are missing from the submittal. Following submittal of additional material, the review is completed and the review is finalized with one of the outcomes listed above. f. This process is repeated as required for subsequent submittals of a project until a Conditional or Approved status is reached. 4) As-Built Certification a. Following completion of project construction, a final inspection with the Department of Public Works is required to be scheduled to verify the project is constructed in accordance with the approved plans. b. As-built drawings and an as-built certification by a Professional Engineer of the storm water BMPs is required to be submitted. 3. Long-term Maintenance, Inspections and Enforcement Responsible Position: DPW / Engineering Division; Civil Engineering Supervisor Current Position Staff: Alyssa Deckert; Phone: (920) 236-5065 Email: adeckert@oshkoshwi.gov Program Description: Following the completion of the site inspection and as-built certification (See Section 2. 4) above), the project transitions from an active construction project into long-term operation and maintenance. As part of the storm water management plan approval process an operation and maintenance plan and an operation and maintenance agreement is required. An approval will not be given until the agreement is executed. The executed document is formally recorded and also stored within the Evolve System. City of Oshkosh Post-Construction Storm Water Program as of: December, 18 2025 City of Oshkosh Post Construction Storm Water Program-Final.docx Page 5 2/18/2026 Section 14-24 of the City’s ordinance details the requirement for and provisions that gives the City authority for requiring a maintenance agreement. 1) Tracking Regulated Sites: The City uses two systems to track regulated sites. a. For construction sites that occurred prior to the implementation of the Evolve System: i. A GIS coverage (shapefile) is maintained that identifies parcels with a drainage plan on file with the City of Oshkosh. ii. Drainage plans associated with the sites are stored on the City Server. b. For construction sites that occurred after the implementation of the Evolve System: i. The GIS coverage referenced above is maintained. ii. The Evolve system maintains a history of all prior projects. 2) Long Term Maintenance Inspections a. Inspections are conducted at least once every 5 years (WPDES Permit Term) 3) Inspection Documentation a. Paper inspection forms are completed. b. Inspection reports (PDF) are stored on City Server in appropriate folders. 4) Enforcement & Corrective Maintenance a. If defects are identified with a BMP during a routine inspection or as a result of a complaint, the Administering Authority (City) will notify the responsible party of the defect and require corrective actions within a reasonable timeframe as set by the City. b. If the responsible party does not make the required corrections within the specified time period, the City can perform the required corrective actions and charge the responsible party for the cost of the work through a special charge under Wis. Stats. ss66.0627. Action Person Responsible Date Planned/ Complete Reach Complete?Action Person Responsible Date Planned/ Complete Reach Complete?Action Person Responsible Date Planned/ Complete Reach Complete?Action Person Responsible Date Planned/ Complete Reach Complete?Action Person Responsible Date Planned/ Complete Reach Complete? Provide details about what it is so that implementing the Outreach is easier. Select your type of Delivery Mechanism What is planned? Who is going to do it?When? # people reached Yes/No What is planned? Who is going to do it?When? # people reached Yes/No What is planned? Who is going to do it?When? # people reached Yes/No What is planned? Who is going to do it?When? # people reached Yes/No What is planned? Who is going to do it?When? # people reached Yes/No Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Volunteer event Watershed Cleanup NEWSC 3-May 186 Yes Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Education Activities (School Presentations, summer camps) Watershed Cleanup Presentation NEWSC 3-May 186 Yes Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Chloride Monitoring IDDE Education for Volunteers https://drive.google.com/file/d/1km9X- ez1lStSyE5hVRooJNMlkq7hF4Qr/view Education Activities (School Presentations, summer camps) Chloride Monitoring/Sampling NEWSC 3 Yes Storm Water Pollutants See attached Social media posts Social Media Post Media Services 20-Jun 10+Yes Wisconsin Stormwater Week See attached Social media posts Social Media Post Media Services 22-Sep 10+Yes Exhibit in Your Community to highlight topic See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Information booth at event Information Booth NEWSC 10/11/2025 125 Yes Chloride Monitoring https://www.google.com/maps/d/viewer?mid=1hBOxrw1PIrzz9bsal gCTdElFGvjdrM0&ll=44.371693999171775%2C- 88.29907499999997&z=8 Volunteer event Chloride Monitoring/Sampling NEWSC 3 Yes Chloride Monitoring/Sampling NEWSC Chloride Monitoring/Sampling NEWSC Chloride Monitoring/Sampling NEWSC Chloride Monitoring/Sampling NEWSC Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Wisconsin Stormwater Week See attached Social media posts Social Media Post Media Services 22-Sep 10+Yes Exhibit in Your Community to highlight topic See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Information booth at event Information Booth NEWSC 10/11/2025 125 Yes Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Education Activities (School Presentations, summer camps) Watershed Cleanup Presentation NEWSC 3-May 186 Yes Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Volunteer event Watershed Cleanup NEWSC 3-May 186 Yes Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Storm Water Pollutants See attached Social media posts Social Media Post Media Services 20-Jun 10+Yes Avoid Sweeping these Items Into Drains See attached Social media posts Social Media Post Media Services 20-Aug 10+Yes Good Dog Good Owner See attached Social media posts Social Media Post Media Services 5-Mar 10+Yes Leave it on the Lawn See attached Social media posts Social Media Post Media Services 16-Jul 10+Yes Wisconsin Stormwater Week See attached Social media posts Social Media Post Media Services 22-Sep 10+Yes Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Exhibit in Your Community to highlight topic See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Information booth at event Information Booth NEWSC 10/11/2025 125 Yes https://www.ci.oshkosh.wi.us/StormWaterUtility/assets/pdf/GrassC lipping.pdf Distribution of print media (mailings, newsletters, etc.) via mail or email Grass clippings brochure Utility Billing/DPW 2025 10+ Yes Grass clippings brochure Utility Billing/DPW Grass clippings brochure Utility Billing/DPW Grass clippings brochure Utility Billing/DPW Grass clippings brochure Utility Billing/DPW Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Education Activities (School Presentations, summer camps) Watershed Cleanup Presentation NEWSC 3-May 186 Yes Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Volunteer event Watershed Cleanup NEWSC 3-May 186 Yes Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Exhibit in Your Community to highlight topic See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Information booth at event Information Booth NEWSC 10/11/2025 125 Yes Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Fox-Wolf Watershed Conference Targeted group training (contractors, consultants) Watershed Conference NEWSC 3/4-3/5 Yes Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Wisconsin Stormwater Week See attached Social media posts Social Media Post Media Services 22-Sep 10+Yes Shoreline Restoration Volunteer event Shoreline Restoration NEWSC 2025 6 Yes Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Education Activities (School Presentations, summer camps) Watershed Cleanup Presentation NEWSC 3-May 186 Yes Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Volunteer event Watershed Cleanup NEWSC 3-May 186 Yes Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Rain Barrel See attached Social media posts Social Media Post Media Services 25-Mar 10+ Yes Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services How to Create a Rain Barrel See attached Social media posts Social Media Post Media Services 26-Sep 10+ Yes Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Exhibit in Your Community to highlight topic See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Information booth at event Information Booth NEWSC 10/11/2025 125 Yes Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Wisconsin Stormwater Week See attached Social media posts Social Media Post Media Services 22-Sep 10+Yes https://www.ci.oshkosh.wi.us/StormWaterUtility/assets/pdf/Reside ntial_Credit_Policy_and_Application_2010.pdf Website Storm Water Utility Credits Website/Engin eering 2025 10+ Yes Storm Water Utility Credits Website/Engin eering Storm Water Utility Credits Website/Engin eering Storm Water Utility Credits Website/Engin eering Storm Water Utility Credits Website/Engin eering Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Grass Swale See attached Social media posts Social Media Post Media Services 16-Jul 10+Yes Rural II Post See attached Social media posts Social Media Post Media Services 15-Aug 10+Yes Prescribed Fire See attached Social media posts Social Media Post Media Services 12-Nov 10+ Yes Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Fox-Wolf Watershed Conference Targeted group training (contractors, consultants) Watershed Conference NEWSC 3/4-3/5 Yes Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC yearly ground control - see attached attendance Targeted group training (contractors, consultants) Annual EC Pre-con Meeting Casey 14-Mar 19 Yes Annual EC Pre-con Meeting Casey Annual EC Pre-con Meeting Casey Annual EC Pre-con Meeting Casey Annual EC Pre-con Meeting Casey City of Oshkosh Public Involvement & Participation Plan / Public Education and Outreach Plan Goal: Increase awareness of strom water pollution impacts on waters of the state and encourage changes in public behavior. 20282025 Stream and Shoreline Management Promote the management of streambanks and shorelines by riparian landowners to minimize erosion and restore and enhance the ecological value of waterways. 4 5 Residential Infiltration Promote infiltration of residential storm water runoff from rooftop downspouts, driveways, and sidewalks. 6 Construction Sites & Post Construction Stormwater Management Inform and educate those responsible for the design, installation, and maintenance of construction site erosion control practices and storm water management facilities on how to design, install, and maintain the practices. 2 1 Illicit Discharge Detection & Elimination Promote detection and elimination of illicit discharges and water quality impacts associated with such discharges from municipal separate storm sewer systems. Household Hazardous Waste Disposal/Pet Waste Management/ Vehicle Washing Inform and educate the public about the proper management of materials that may cause storm water pollution from sources including automobiles, pet waste, household hazardous waste and household practices. 3 Yard Waste Management/ Pesticide and Fertilizer Application Promote beneficial onsite reuse of leaves and grass clippingsand proper use of lawn and garden fertilizers. Where to get it/How to use it 2.1.2 Delivery Mechanism Active/Passive # 2.1.1 Topic Description Add WDNR description from permit language NEWSC Resource Available 2026 2027 2029 Wisconsin Stormwater Week See attached Social media posts Social Media Post Media Services 22-Sep 10+Yes Exhibit in Your Community to highlight topic See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Information booth at event Information Booth NEWSC 10/11/2025 125 Yes Elected Officials Education Video https://www.youtube.com/watch?v=GSqvr7YV2mQ&t=295s Targeted group training (contractors, consultants)Educational Video NEWSC 2025 10+ Yes Stormwater Utility Brochure https://www.ci.oshkosh.wi.us/StormWaterUtility/assets/pdf/Storm water_Utility_Brochure.pdf Print media display (brochures at front desk, posters, etc.)Brochure Alyssa 2025 10+ Yes Brochure Alyssa Brochure Alyssa Brochure Alyssa Brochure Alyssa Stormwater Brochure Social Media See attached Social media posts Brochure Media Services 9-Aug 10+ Yes Street Sweeping post See attached Social media posts Brochure Media Services 27-Aug 10+ Yes Fox-Wolf Watershed Conference Targeted group training (contractors, consultants) Watershed Conference NEWSC 3/4-3/5 Yes Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Education Activities (School Presentations, summer camps) Watershed Cleanup Presentation NEWSC 3-May 186 Yes Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup Presentation NEWSC Watershed Cleanup* See Outreach Policy for procedure to make the most of NEWSC services https://drive.google.com/file/d/18vufC6hI6kCw1z3WuEfVfIJo6tJ- TZdl/view?usp=sharing Volunteer event Watershed Cleanup NEWSC 3-May 186 Yes Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Watershed Cleanup NEWSC Stormwater Utility Brochure Print media display (brochures at front desk, posters, etc.)Brochure Alyssa 2025 10+ Yes Brochure Alyssa Brochure Alyssa Brochure Alyssa Brochure Alyssa Stormwater Brochure Social Media See attached Social media posts Brochure Media Services 9-Aug 10+ Yes Rain Barrel See attached Social media posts Social Media Post Media Services 25-Mar 10+ Yes Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services How to Create a Rain Barrel See attached Social media posts Social Media Post Media Services 26-Sep 10+ Yes Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Social Media Post Media Services Fox-Wolf Watershed Conference Targeted group training (contractors, consultants) Watershed Conference NEWSC 3/4-3/5 Yes Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Watershed Conference NEWSC Planned Planned Planned Planned Planned Total # of Outreach Efforts 121 90 90 90 90 # of Public Involvement Events (Count GOLD and GREEN Rows with Text)8 8 8 8 8 Illicit Discharge Detection & Elimination Topic 1 Covered yes yes yes yes yes Topic 2 Covered yes yes yes yes yes Outreach & Education Template developed by Northeast Wisconsin Stormwater Consortium Topic 3 Covered yes yes yes yes yes 2.2 Public Involvement and Participation Topic 4 Covered yes yes yes yes yes 1 Volunteer Opportunity Annually - Cleanup Topic 5 Covered yes yes yes yes yes 1 Public Input Opportunity Annually - MS4 Annual Report Topic 6 Covered yes yes yes yes yes Additional as topics arise Topic 7 Covered yes yes yes yes yes Topic 8 Covered yes yes yes yes yes # of Topics Covered 8 8 8 8 8 Minimum of 6 Topics Covered Goal Met YES YES YES YES YES Delivery Mechanism Goal Met YES YES YES YES YES # of Public Participation Events (Add Gold lines)2 2 2 2 2 Minimum of 2 Public Involvement Events/Year YES YES YES YES YES no no no 0 NO NO #VALUE! Complete 0 no no no no no yes yes yes 8 YES YES 3 YES Complete 56 8 yes yes yes yes yesResidential Infiltration Construction Sites & Post Construction Stormwater Management Pollution Prevention Green Infrastructure/Low Impact Development 7 Pollution Prevention Identify businesses and activities that may pose a storm water contamination concern, and educate those specific audiences on methods of stormwater pollution prevention. 8 Green Infrastructure/Low Impact Development Promote environmentall sensitive land development designs by developers and designers, including green infrasture and low impact development. Each Permit Cycle: 8 of 8 Topics must be addressed Each Year a Permittee Must: Address 6 out of 8 Topics, Use at least 2 active Delivery *Public Participation Efforts may count towards Education & Outreach Efforts Household Hazardous Waste Disposal/Pet Waste Management/Vehicle Yard Waste Management/ Pesticide and Fertilizer Application Stream and Shoreline Management no no no 0 NO NO NO Complete 0 no no no no no no no no 0 NO NO NO Complete 0 no no no no no no no no 0 NO NO #VALUE! Complete 0 no no no no no