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HomeMy WebLinkAboutCH2M HILL Eng. & Oshkosh/Phosphorus Preliminary AGREEMENT This AGREEMENT, made on the —9dayof 2017, by and between the CITY OF OSHKOSH, party of the first part,hereinafter referred to as the CITY, and CH2M HILL Engineers, Inc., 135 South 841h Street, Suite 400,-Milwaukee, WI 53214, party of the second part,hereinafter referred to as the CONSULTANT, WITNESSETH: The CITY and the CONSULTANT, for the consideration hereinafter named, enter into the following AGREEMENT for PHOSPHORUS PRELIMINARY COMPLIANCE ALTERNATIVES PLAN. ARTICLE I. PROTECT MANAGER A. Assignment of Project Manager. The CONSULTANT shall assign the following individual to manage the PROJECT described in this AGREEMENT: Linda Mohr, P.E.—Senior Project Manager B. Changes in Project Manager. The CITY shall have the right to approve or disapprove of any proposed change from the individual named above as Project Manager. The CITY shall be provided with a resume or other information for any proposed substitute and shall be given the opportunity to interview that person prior to any proposed change. ARTICLE 11. CITY REPRESENTATIVE The CITY shall assign the following individual to manage the PROJECT described in this AGREEMENT: Stephan M.Brand—Public Works Utilities Bureau Manager ARTICLE 111. SCOPE OF WORK The CONSULTANT shall provide the services described in the CONSULTANT's Scope of Work. The CITY may make or approve changes within the general Scope of Services in this AGREEMENT. If such changes affect CONSULTANT's cost of or time required for performance of the services, an equitable adjustment will be made through an amendment to this AGREEMENT. I:\Engineering\Tracy Taylor\Steve Brand Agreements\CH2M Hill\Phosphorus Prelim Comp Page 1 of 7 Alternatives Plan\Agreement_3-20-17.docx All reports, drawings, specifications, computer files, field data, notes, and other documents and instruments prepared by the CONSULTANT as instruments of service shall remain the property of the CITY. ARTICLE IV. STANDARD OF CARE The standard of care applicable to CONSULTANT's services will be the degree of skill and diligence normally employed by professional consultants or consultants performing the same or similar services at the time said services are performed. CONSULTANT will re-perform any services not meeting this standard without additional compensation. MONS OF COST FINANCIAL CONSIDERATIONS AND SCHEDULES ARTICLE V. OPI In providing opinions of cost, financial analyses, economic feasibility projections, and schedules for the PROJECT, CONSULTANT has no control over cost or price of labor and materials; unknown or latent conditions of existing equipment or structures that may affect operation or maintenance costs; competitive bidding procedures and market conditions; time or quality of performance by operating personnel or third parties; and other economic and operational factors that may materially affect the ultimate project cost or schedule. Therefore, it is understood between the parties the CONSULTANT makes no warranty the CITY's actual project costs, financial aspects, economic feasibility, or schedules will not vary from CONSULTANT's opinions, analyses,projections,or estimates. ARTICLE VI. RECORD DRAWINGS Record drawings, if required, will be prepared, in part, on the basis of information compiled and furnished by others. CONSULTANT is not responsible for any errors or omissions in the information from others the CONSULTANT reasonably relied upon and are incorporated into the record drawings. ARTICLE VII. CITY RESPONSIBILITIES The CITY shall furnish, at the CONSULTANT's request, such information as is needed by the CONSULTANT to aid in the progress of the PROJECT, providing it is reasonably obtainable from City records. To prevent any unreasonable delay in the CONSULTANT's work, the CITY will examine all reports and other documents and will make any authorizations necessary to proceed with work within a reasonable time period. L\Engineering\Tracy Taylor\Steve Brand Agreements\CH2M HILI\Phosphorus Prelim Comp Page 2 of 7 Alternatives Plan\Agreement_3-20-17.docs ARTICLE VIII. ASBESTOS OR HAZARDOUS SUBSTANCES If asbestos or hazardous substances in any form are encountered or suspected, CONSULTANT will stop its own work in the affected portions of the PROJECT to permit testing and evaluation. If asbestos is suspected, CONSULTANT will, if requested, manage the asbestos remediation activities using a qualified subcontractor at an additional fee and contract terms to be negotiated. If hazardous substances other than asbestos are suspected, CONSULTANT will, if requested, conduct tests to determine the extent of the problem and will perform the necessary studies and recommend the necessary remedial measures at an additional fee and contract terms to be negotiated. The CITY recognizes CONSULTANT assumes no risk and/or liability for a waste or hazardous waste site originated by other than the CONSULTANT. ARTICLE IX. CITY'S INSURANCE The CITY will maintain property insurance on all pre-existing physical facilities associated in any way with the PROJECT. The CITY will provide (or have the construction contractor(s) provide) a Builders Risk All Risk insurance policy for the full replacement value of all project work including the value of all onsite CITY-furnished equipment and/or materials associated with CONSULTANT's services. Upon request, the CITY will provide CONSULTANT a copy of such policy. ARTICLE X. TIME OF COMPLETION The work to be performed under this AGREEMENT shall aCOe commenced Scope and e work completed within the time limits as agreed upon in the Work. The CONSULTANT shall perform the services under this AGREEMENT with reasonable diligence and expediency consistent with sound professional practices. The CITY agrees the CONSULTANT is not responsible for damages arising directly or indirectly from any delays for causes beyond the CONSULTANT's control. For the purposes of this AGREEMENT, such causes include, o{ r naturalye not disasters,lfaluro, strikes or other e of performance labor disputes, severe weather disruptions or other C\Engineering\Tracy Taylor\Steve Brand Agreements\CH2M Hill\Phosphorus Prelim Comp Page 3 of 7 Alternatives Plan\Agreement_3-20-17Ad x by the CITY, or discovery of any hazardous substances or differing site conditions. If the delays resulting from any such causes increase the time required by the CONSULTANT to perform its services in an orderly and efficient manner,the CONSULTANT shall be entitled to an equitable adjustment in schedule. ARTICLE XI. COMPONENT PARTS OF THE AGREEMENT This AGREEMENT consists of the following component parts, all of which are as AGREEMENT as if herein set out verbatim, or if not attached, as if hereto fully a part of this attached: 1. This Instrument 2. CONSULTANT's Scope of Work dated December 22, 2016 and attached hereto In the event any provision in any of the above component parts of this AGREEMENT conflicts with any provision in any other of the component parts, the provision in the component part first enumerated above shall govern over any other component part which follows it numerically except as may be otherwise specifically stated. ARTICLE XII. PAYMENT A. The Agreement Sum. The CITY shall pay to the CONSULTANT for the performance of the AGREEMENT the total sum as set forth below, adjusted by any changes hereafter mutually agreed upon in writing by the parties hereto: • Time and Materials Not to Exceed $249,805 (Two Hundred Forty Nine Thousand Eight Hundred Five Dollars). • Attached fee schedule shall be firm for the duration of this AGREEMENT. B. Method of Payment. The CONSULTANT shall submit itemized monthly statements for services. The CITY shall pay the CONSULTANT within thirty (30) calendar days after receipt of such statement. If any statement amount is disputed, the CITY may withhold payment of such amount and shall provide to CONSULTANT a statement as to the reason(s) for withholding payment. C. Additional Costs. Costs for additional services shall be negotiated and set forth in a written amendment to this AGREEMENT executed by both parties prior to proceeding with the work covered under the subject amendment. I:\EngineeringlTracy Taylor\Steve Brand Agreements\CH2M Hill\Phosphorus Prelim Comp Page 4 of 7 Alternatives Plan\Agreement_3-2047.docx D. Indirect Costs. Indirect costs such as computer time, printing, copying, cell phone charges, telephone charges, and equipment rental shall be considered overhead and shall not be invoiced separately to the PROJECT. E. Expenses. Expenses may be billed with up to a maximum of 10% mark-up. All invoices with expenses shall include supporting documentation of the expense. Failure to include the supporting documentation will result in the reduction of payments by the amount of those expense(s)not including documentation. ARTICLE XIII. HOLD HARMLESS The CONSULTANT covenants and agrees to protect and hold the City of Oshkosh harmless against all actions, claims, and demands which ms Yob the CONSULTANo the T, his/her extent caused by or result from the intentional or negligent a agents or assigns,his/her employees, or his/her subcontractors related however remotely to the performance of this AGREEMENT or be caused or result from any violation of any law or administrative regulation, and shall indemnify or refund h theto he TYY maCITY all sums includdi inogr court costs, attorney fees, and punitive damages adjudged to pay on any such claims or demands within thirty (30) days of the date of the CITY's written demand for indemnification or refund for those actions,claim, and demands caused by or resulting from intentional or negligent acts as specified in this paragraph. Subject to any limitations contained in Sec. 893.80 and any similar statute of the Wisconsin Statutes,the CITY further agrees to hold CONSULTANT harmless from any and all liability, including claims, demands, losses, costs, damages, and expenses of every kind and description(including death), or damages to person or property arising out of re-use of the documents without consent where such liability is founded upon or grows out of the acts or omission of any of the officers, employees or agents of the City of Oshkosh while acting within the scope of their employment. ARTICLE XIV. INSURANCE The CONSULTANT agrees to abide by the attached City of Oshkosh Insurance Requirements. l:\Engineering\TracyTaylor\Steve brand Agreements\CH2M Hill\Phosphorus Prelim Comp Page 5 of 7 Alternatives Plan\Agreement_3-20-17.docx ARTICLE XV. TERMINATION A. For Cause. If the CONSULTANT shall fail to fulfill in timely and proper manner any of the obligations under this AGREEMENT, the CITY shall have the right to terminate this AGREEMENT by written notice to the CONSULTANT. In this event, the CONSULTANT shall be entitled to compensation for any satisfactory, usable work completed. S. For Convenience. The CITY may terminate this AGREEMENT at any time by giving written notice to the CONSULTANT no later than ten (10) calendar days before the termination date. If the CITY terminates under this paragraph, then the CONSULTANT shall be entitled to compensation for any satisfactory work performed to the date of termination. This document and any specified attachments contain all terms and conditions of the AGREEMENT and any alteration thereto shall be invalid unless made in writing, signed by both parties and incorporated as an amendment to this AGREEMENT. ARTICLE XVI RE-USE OF PROTECT DOCUMENTS All reports, drawings, specifications, documents, and other deliverables of CONSULTANT, whether in hard copy or in electronic form, are instruments of service for this PROJECT, whether the PROJECT is completed or not. The CITY agrees to indemnify CONSULTANT and CONSULTANT's officers, employees, subcontractors, and affiliated corporations from all claims, damages, losses, and costs, including, but not limited to, litigation expenses and attorney's fees arising out of or related to the unauthorized re-use, change, or alteration of these project documents. ARTICLE XVII. SUSPENSION DELAY OR INTERRUPTION OF WORK The CITY may suspend, delay, or interrupt the services of CONSULTANT for the convenience of the CITY. In such event, CONSULTANT's contract price and schedule shall be equitably adjusted. 1:\Engineering\Tracy Taylor\Steve Brand Agreements\CH2M Hill\Phosphorus Prelim Comp Page h OE 7 Alternatives Plan\Agreement_3-20-I7Arex ARTICLE XVIII. NO THIRD-PARTY BENEFICIARIES This AGREEMENT gives no rights or benefits to anyone other than the CITY and CONSULTANT and has no third-party beneficiaries. In the Presence of: CONSULTANT By. (Seal of Consultant if a Corporation) (Specify Title) By: (Specify Title) CITY OF OSHKOSH By: (Witness) Mark A. Rohloff, City Manager And: J - (Witness) Pamela R.Ubrig, City Clerk APPROVED: I hereby certify that the necessary provisions have been made to pay the liability which will accrue under this AGREEMENT. 4ro r I ity tt rone ;�� City Comptroller I:\Engineering\Tracy Taylor\Steve Brand Agreements\C142M Hill\Phosphorus Prelim Comp Page 7 of 7 Alternatives Plan\Agrcemem_3-20-17Aocx SCOPE OF WORK DECEMBER 22,2016 � 211 Phosphorus Preliminary Compliance �� Alternatives Plan The City of Oshkosh(City)has recently settled its contested permit with the Wisconsin Department of Natural Resources(WDNR).The settlement changed the phosphorus compliance schedule(schedule 5.1)where a Preliminary Compliance Alternatives Plan is required by December 31,2017.Additional phosphorus reporting is required at future dates,such as the Final Compliance Alternatives Plan by December 31,2018. The Lake Winnebago TMDL is underway and includes the Upper Fox and Wolf Rivers. Preliminary modeling reports have been developed for watershed SWAT modeling and(small) lake modeling, but modeling for Lake Winnebago and the upstreampool„ lakes has not yet been reported.Consequently, draft allocations are not completed and potential effluent limits for point source dischargers like the Oshkosh Wastewater Treatment Plant(WWTP)have not been established.The exact schedule is not known and it is likely that draft allocations and effluent limits will not be known in sufficient time to evaluate compliance options.Consequently,a range of potential effluent limits will be assumed to evaluate treatment and watershed alternatives as part of the Preliminary Compliance Alternatives Plan, This scope of work describes the tasks and deliverables to complete the following: • Assist the City in evaluating current treatment plant performance and provide recommendations for consistent and cost effective attainment of the settlement interim phosphorus limit of 0.8 mg/L. • Collect treatment plant data,complete jar and full scale testing,process modeling,evaluate and estimate the cost of treatment plant alternatives,and submit the report to WDNR to satisfy the phosphorus Preliminary Compliance Alternatives Plan permit requirement due December 31, 2017.As noted in the settlement,the Preliminary Compliance Alternatives Plan will be general. The Plan will cover a range of assumed permit limits because TMDL limits will not be known and those limits will affect treatment plant alternatives. • Evaluate the multi-discharger variance for comparison against treatment plant alternatives. • Evaluate watershed alternatives including trading and adaptive management for comparison against treatment plant alternatives. • Support identification of pilot testing technologies to be implemented for future Final Compliance Alternatives Evaluation. Task 1—Kickoff Workshop CH2M will facilitate a project kickoff workshop to review the WPDES permit and schedule,the general compliance alternatives available to the City and to discuss the project scope,approach,and schedule with City officials and wastewater treatment personnel.The scope and approach will be reviewed to gain consensus and refined as appropriate based on discussion in this workshop.The workshop is anticipated to be up to 4 hours and hosted at the WWTP. Up to four CH2M staff will attend the workshop. Deliverables • Presentation with summary of key discussion points. • Meeting summary of action items and decisions made at the workshop. PAGE 1 OF 10 Task 2—WWTP Site Visit to Support Compliance with Interim 0.8 mg/L Phosphorus Limit CH2M will meet with City operations personnel to discuss their operations,observations,issues,and concerns relevant to compliance with their interim 0.8 mg/L phosphorus limit. Phosphorus removal approaches utilized at other plants that may be beneficial will be discussed to determine if they have been considered or tested and to identify potential barriers.Ceriodaphnia(water fleas)outbreaks in the secondary clarifiers,although indicative of a nontoxic effluent and a good source of food for fish,can contribute to elevated effluent TSS.There is a particulate phosphorus concentration associated with effluent TSS.The elevated TSS occurs due to a portion of the Ceriodaphnia discharging over the clarifier weirs and due to Ceriodaphnia feeding on the biological floc which breaks up the floc and releases pin floc.Ceriodaphnia is one example that can lead to elevated effluent phosphorus.Potential control strategies for Ceriodaphnia and other process issues that could affect effluent phosphorus will be discussed. Based on this discussion,operational recommendations to reduce the risk of a permit violation will be made.This task will be closely coordinated with Task 3 so that historical data can be reviewed prior to the meeting with City operations. Deliverables CH2M will prepare a draft version of the following technical memorandum(TM)for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. • Summary of current operational approach for effluent phosphorus compliance. • Key discussion points. • Recommendations to reduce the risk of a permit violation with the 0.8 mg/L interim phosphorus limit. Task 3—Historical Data Analysis and Sampling Plan Development and Implementation CH2M will review the most recent 3-years of historical WWTP influent flows and loads,effluent concentrations for key parameters including phosphorus,and specialized phosphorus sampling analyses. The contributions and impact on effluent phosphorus during extreme wet weather events,the Country USA(mid-June),Rock USA(mid-July)and the annual Experimental Aircraft Association AirVenture fly-in (late-July)will also be evaluated through review of historical data. Based on additional data needs identified from review of historical data and specialized characterization necessary to support detailed WWTP process modeling,a sampling plan will be developed to supplement available data.Executing the sampling plan is assumed to be completed by the City.It is assumed the City will collect samples and utilize the City laboratory for analyses they are familiar with performing and that the City will utilize an outside laboratory for other analyses. Five days of sampling and analyses are anticipated for purposes of model calibration.The results of the analyses will be used to calibrate the process model used to evaluate biological phosphorus removal,evaluate plant capacity which could be impacted by phosphorus removal,and improve the predictive capability for evaluating multi-point dosing and the impact of phosphorus source reduction. Samples will be taken using existing composite samplers and grab sampling.The sampling plan will include sampling of the primary sludge holding tank to determine if fermentation is occurring prior to digester feed.If there is a significant soluble readily degradable component,then further VFA testing may be recommended.A significant soluble substrate and VFAs would be indicative of fermentation products that could potentially be beneficially used in conjunction with biological phosphorus removal. PAGE 2 OF 10 In addition to the sampling required for model calibration,an additional procedure and analysis will be recommended for inclusion with the City's ongoing phosphorus sampling plan associated with estimating the concentration of soluble non-reactive phosphorus.The procedure and analysis are intended to determine if a portion of the phosphorus currently being calculated as soluble non-reactive phosphorus is instead colloidal phosphorus.This distinction is desired because enhanced coagulation, flocculation,and removal processes may be able to remove a portion of the colloidal fraction.The additional procedure and analysis would be performed by the City each time they currently sample and analyze phosphorus to estimate soluble non-reactive phosphorus.CH2M will review current procedures, make recommendations,and provide details for the additional procedure. I CH2M will respond to questions and provide supplemental information to the City to assist the City with sampling program execution.CH2M will review and summarize laboratory results in a TM. Deliverables CH2M will prepare draft versions of the following TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. • Review and analysis of historical data. • Sampling plan to supplement historical data. • Supplemental sampling results summary. Task —Jar Testing Jar testing results would support determining treatment options and estimating chemical cost at limits lower than the 0.8 mg/L interim limit,such as an assumed TMDL limit or WQBELthat are considered in Tasks 5,6 and 7.The City has evaluated iron salts and a polymer as part of past reporting to satisfy permit requirements(Operational Evaluation Report,6-30-2014;Update to OER to satisfy Compliance Alternatives,Source Reduction, Improvements and Modifications Status,6-30-2015).The testing demonstrated that ferric chloride provided greater phosphorus removal than ferrous chloride. In this task CH2M will complete additional jar testing to examine two alternative metal salts or coagulants for phosphorus precipitation.CH2M will select the two alternatives with the City,where examples could include a rare earth element(i.e.,SorbX)and aluminum chlorohydrate(ACH).Ferric chloride jar testing would be performed in parallel with each alternative for baseline comparison.Two days of CH2M staff performing jar testing is anticipated. Deliverables CH2M will prepare a draft version of the following TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. • Memorandum with jar testing plan. • Summary of results. Task 5—Support Online Analyzer Implementation and Full Scale Testing Although online analyzers are not without their issues and are an additional instrument to maintain, experience at other treatment plants has demonstrated significant value from implementation of an online phosphate analyzer for pacing chemical feed.Online analyzer pacing is expected to result in more consistent and lower effluent phosphorus concentration.It is also expected to result in lower chemical cost for a given effluent phosphorus by strategically feeding chemical when needed and reducing chemical dose when not needed.CH2M will support the City with ordering an online analyzer and appurtenances,selecting with the City a connection point to piping at a representative sample location, developing design sketches for installation of the analyzer,design sketches for power and control,and PAGE 3 OF 10 provide programming for online analyzer control of the feed pumps.The City will pay for the analyzer directly.Additional algorithms will be provided for wet weather pacing and other scenarios as deemed beneficial. Online phosphorus analyzers are available with different orthophosphate detection limits.The type of online analyzer most typically used has a rated detection limit of 0.05 mg/L.However,experience has indicated that accuracy, based on comparison to traditional laboratory measurements,can deteriorate at or above 0.1 mg/L.This type of analyzer is expected to show significant benefits for permit limits of 0.2 mg/L and higher.This type of analyzer would likely be recommended for initial piloting due to proven performance,a longer track record than lower detection limit analyzers,and lower sample pretreatment requirements(i.e.,filtering).This analyzer could be used in conjunction with a lower detection limit analyzer downstream of a tertiary treatment process.It could also be moved to the primary effluent at a later date if dual point dosing upstream of primary clarification and to secondary treatment appeared promising for permit compliance. i CH2M will support the City with full scale testing using the analyzer.Three targets are anticipated as follows: • 0.5 to 0.6 mg/L total phosphorus to provide a margin of safety for compliance with the 0.8 mg/L total phosphorus interim monthly permit limit. • 70 percent of an assumed TMDL limit.Assuming a TMDL limit of 0.2 mg/L total phosphorus,the online analyzer set point would be selected to target 0.14 mg/L total phosphorus. Targeting as low as possible for comparison of results to a 0.1 mg/L or lower limit.Although tertiary treatment is anticipated to be required for a permit limit of 0.1 mg/L,targeting as low as possible will provide an indication of what is attainable without tertiary treatment and allow an estimation of operating cost with chemical dosing alone. If the jar testing results indicate one or both of the alternative chemicals to ferric chloride provide significantly lower total effluent phosphorus or lower cost,then full scale testing using online analyzer control will be repeated at 70 percent of the assumed TMDL limit for one or both of the alternative chemicals.This assumes the existing chemical feed pumps have compatible materials and a suitable capacity range for these alternative chemicals.If the existing tanks are not compatible then it is assumed the City will modify the suction piping of the pumps as necessary to allow drawing from one or more totes or 55 gallon drums for testing the alternative chemicals. CH2M will provide support during the full scale testing.We have assumed 2 days of start up support and two separate days of support once full scale testing is underway.The full scale testing is anticipated to occur for up to 4 months to include wet weather events and significant flow and load events such as the EAA, University schedule,or the Rock and Country USA concerts. Deliverables CH2M will prepare a draft version of the following TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. • Mechanical,electrical,and control sketches to install the online analyzer. • Full scale test plan. • Memorandum with analysis of results from full scale testing with online analyzer control. Task 6—WWTP Process Modeling and Alternatives Evaluation A process model of the WWTP will be constructed to support evaluating phosphorus removal alternatives to improve existing infrastructure and operational strategies.CH2M proposes to use our whole-plant process simulator,Pro2D2,to evaluate alternatives for phosphorus removal. Operational PAGE 4 OF 10 information necessary to support WWTP modeling will be determined from discussion with operational staff and from evaluation of historical operational data. A key component for the modeling evaluation will be the identification of process constraints related to the wastewater characteristics, loading conditions, and existing infrastructure at the Oshkosh WWTP. Given the relatively low strength wastewater,the high peak flow rates,and the existing aeration basin and final clarifier configurations,some of the phosphorus reduction methods implemented at other facilities may not be feasible at Oshkosh.The modeling effort will be used to identify the process constraints,develop potential improvements to existing infrastructure and operations,and quantify the potential impact of the improvements. As part of the process model development,a state point analysis will be completed on the existing final clarifiers. Field testing of the dispersed suspended solids (DSS)and flocculated suspended solids(FSS) will provide information related to the potential impact of final clarifier improvements. The plant currently utilizes dual point dosing with one of the ferric chloride dose points used to control struvite in the recycle from anaerobically digested sludge thickening. Multi point dosing will be evaluated in the model for comparison to single and dual point dosing and the chemical savings will be estimated.Chemical savings from source reductions will also be estimated.The savings will be estimated assuming three levels of reduced influent phosphorus concentration without evaluating specific sources. The potential for biological phosphorus removal will also be evaluated.If viable, biological phosphorus removal would be expected to reduce but not eliminate chemical cost for phosphorus removal. If viable, the capital and lifecycle cost of biological phosphorus removal will be estimated for comparison to chemical phosphorus removal alone. If needed,an uncertainty analysis(Monte Carlo)will be completed for scenarios where compliance with effluent limits is not certain at all times.This analysis will assist the City with evaluating certain treatment techniques for certain times of the year that may be more cost effective solutions. For example,utilizing bio-p when available and higher chemical dosing for remaining portion of a year could be a cost effective alternative for some effluent limits. Deliverables CH2M will prepare a draft version of the following TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. • Summary of treatment process model development,calibration,alternatives,cost estimates and recommendations. Task 7—Tertiary Treatment Alternatives Identification and Evaluation Compliance with a 0.1 mg/L Fox River WQBEL limit,or the 0.04 mg/L Lake Winnebago WQBEL if technically feasible,would require tertiary treatment.Tertiary treatment may also be required for a TMDL based limit.It is possible that the most promising alternatives differ for a 0.04 mg/L limit,a 0.1 mg/L limit,and an assumed TMDL limit and that compliance with the 0.04 mg/L if feasible will require two tertiary treatment processes in series.CH2M will facilitate a workshop to discuss available technologies and as a group select up to four alternatives total for developing capital and life cycle cost estimates.The four alternatives may consist of two alternatives for the 0.04 mg/L and two alternatives for the assumed 0.1 mg/L and TMDL limit.CH2M would facilitate a separate workshop to review the results and to select up to three alternatives for evaluation in pilot testing(Task 8). Deliverables CH2M will prepare a draft version of the following TM for review and discussion with the City.Afinal TM will be prepared after incorporating the City's comments. PAGE 5 OF 10 • Summary of tertiary treatment processes considered and selected for detailed cost estimating,basis for selection,cost estimates,and recommendations for pilot testing. Task 8—Multi-DischargerVariance and Watershed Alternatives Evaluation Task 8.1 Multi-Discharger Variance The Multi-Discharger Variance(M,DV)for phosphorus is not yet approved by EPA but approval is anticipated in the first quarter of 2017.Winnebago county and the City appear to be eligible for the MDV.Once the final MDV is approved this sub-task will include the following tasks: • Review the final MDV,summarize the requirements and program details,and confirm the City's eligibility. • If needed for determining eligibility,coordinate with the City's rate consultant to estimate sewer use fees and comparison to median household incomes. • Obtain MDV forms and complete draft application documents for City review. • Summarize alternatives,including advantages and disadvantages,for the City to implement the MDV,including partnership models with the County. For example,one partnership model could be the City facilitating the watershed improvements.A second partnership model could be the City auditing the County to ensure the City's goals and payments are meeting City Council expectations. • Meet with the Winnebago County Land and Water Conservation Department to discuss opportunities for partnering for the MDV and review potential organizational responsibilities for the City and County.Three meetings are anticipated. • Estimate costs for MDV compliance using data from treatment testing in previous tasks.Costs will be estimated for up to 3 compliance scenarios. Deliverables CH2M will prepare a draft version of the following TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. • Summary of MDV requirements and program details for the City, including advantages and disadvantages of program administration,and costs. • Preliminary MDV application documents. Task 8.2 Watershed Trading Watershed trading is gaining momentum in the State with recent trades executed by Baker Cheese, NEW Water and several more trades are reported in progress by the WDNR. Each of these examples have significant documentation of pounds available,costs,and modeling results of the traded water quality credits. Using these real-life examples,and costs and performance work that CH2M has completed elsewhere in the state,CH2M will estimate the costs of phosphorus water quality trading for one treatment plant performance scenario.To leverage available data from ongoing trades,this task will be completed later in the schedule. It is anticipated that trading will not be required for other parameters,such as TSS. Deliverables CH2M will prepare a draft version of the following TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. PAGE 6 OF 10 • Summary of trade scenario,costs,and advantages and disadvantages of trading for meeting one phosphorus compliance alternative. Task 8.3 Adaptive Management Based on the facility improvements anticipated to meet TMDL or Lake Winnebago criteria limits,the City would qualify for adaptive management.Adaptive management continues to evolve in the State with the program details being evaluated or implemented by Appleton,NEW Water,Oconomowoc,Madison, and Fond du Lac. This scope of work will leverage works completed by others and will include: • Summary of potential action areas based on one treatment performance and TMDL limit scenario. • Summarize advantages of adaptive management in comparison to other compliance alternatives. i • Summarize costs,based on programs completed by others in the state,and in relation to maximum expenditures limited by the MDV. • Review of potential partners and the benefits of working with others,such as City stormwater,Fond i du Lac and other point source dischargers in the watershed. • Meeting with potential dischargers to gauge interest in Adaptive Management partnerships.One meeting is anticipated. Deliverables CH2M will prepare a draft version of a TM for review and discussion with the City.A final TM will be prepared after incorporating the City's comments. There is significant overlap with the administrative and watershed tasks of adaptive management and the MDV. Because of this overlap,initial scoping is proposed for adaptive management sufficient to provide a qualitative assessment of this compliance alternative.If the EPA approved MDV does not qualify the City,a scope amendment can be developed to further evaluate watershed alternatives. Task 9—Alternatives Analysis and Study Report CH2M will prepare a study report that will be used as the permit required Preliminary Compliance Alternatives Plan(Plan).The Plan will include an executive summary and will utilize text from the supporting task TMs.The Plan report will include a matrix comparison of compliance alternatives evaluated against monetary and non-monetary criteria developed with the City.A combination of compliance approaches will be considered and a preliminary recommended path forward will be developed for the 0.04 mg/L phosphorus WQBEL and the assumed TMDL based limit. As part of this task,CH2M will facilitate one workshop to review evaluation criteria and a second workshop to review the draft Plan report. Deliverables CH2M will submit draft and final versions of the Plan report. Five paper copies and an electronic PDF copy of the final report will be submitted. Task 10—Project Management and QA/QC CH2M will manage the delivery of the professional technical services and work products to meet the City's schedule and budget.Project management duties include project instructions,which address team communication,quality assurance/quality control(QA/QC),and cost control.Instructions to the project delivery team will guide performance by defining the following: • Detailed scope of services and project deliverables. • Task assignments and work plan. PAGE 7 OF 10 • Project schedule. • Project budget and performance monitoring. • Health and safety considerations. Project team communication will be maintained through regular team meetings,teleconferences, and e- mail. During project meetings and workshops,CH2M will provide project status information.CH2M will submit a brief description of project activities and track budget status with each monthly invoice. CH2M will perform a QA/QC review of completed work and project progress prior to submission of work products to the City. i Deliverables • Monthly invoicing with a status report that includes a bullet list of work completed that month. Optional Future Task—Pilot Testing Tertiary treatment would be required for either a 0.1 mg/L or 0.04 mg/L phosphorus limit. Pilot testing would be recommended if tertiary treatment is expected to be required.This task is being deferred as a future task until the above tasks are completed and the effluent limit is better known. If this task is added to the scope,CH2M would prepare a pilot scale test plan for two(2)tertiary treatment alternatives. Pilot test durations would be determined with the City weighing the manufacturer's fees for equipment and operation versus collecting data from a long enough period to provide a reliable estimate of expected average results considering the 6 month averaging period anticipated for effluent phosphorus limits. Implementation of the pilot testing is anticipated to be largely completed by the City in conjunction with the manufacturers.The test plan would be developed by CH2M in conjunction with the manufacturers of the selected processes and would include identification of assistance needed from.City personnel. CH2M will respond to questions and provide guidance during each pilot test.CH2M would evaluate and summarize pilot results. As part of this task,CH2M would facilitate a workshop to review the pilot testing results.Pilot testing results would not be incorporated into the Preliminary Compliance Alternatives Plan due to WDNR by December 31,2017. Deliverables CH2M would prepare a draft version of the following TM for review and discussion with the City.A final TM would be prepared after incorporating the City's comments. • Memorandum with pilot testing plan and summary of results. • Workshop summary. PAGE 80F10 Schedule The proposed schedule for this scope of services is as follows: Anticipated Timeline Task February 1,2017 Notice to Proceed Task 1—Kickoff Workshop to Discuss Compliance Alternatives Approach and Refine February 15,2017 Scope as Appropriate Task 2—WWTP Site Visit to Support Compliance with Interim 0.8 mg/L Phosphorus Limit February 22,2017 Task 3— Historical Data Analysis and Sampling Plan Development and Implementation February to March 2017 March 2017 Task 4—Jar Testing Task 5—Support Online Analyzer Implementation and Full Scale Testing February to September 2017 Task 6—WWTP Process Modeling and Alternatives Evaluation February to April 2017 Task 7—Tertiary Treatment Alternatives Identification and Evaluation February to September 2017 Task 8—Variance and Watershed Alternatives Evaluation February to September 2017 Task 9—Alternatives Evaluation and Study Report July to December 2017 Task 10—Project Management and QA/QC Throughout Budget and Commercial Terms The budget estimate to complete the above work is$249,805.A 2017 rate schedule is included as Attachment A and is consistent with other contracts with the City.Commercial terms are assumed similar to our prior contracts with the City. Budget Task Task 1—Kickoff Workshop to Discuss Compliance Alternatives Approach and Refine Scope as Appropriate $12,900 Task 2—WWTP Site Visit to Support Compliance with Interim 0.8 mg/L Phosphorus Limit $7,725 Task 3— Historical Data Analysis and Sampling Plan Development and Implementation $10,160 $8,020 Task 4—Jar Testing Task 5—Support Online Analyzer Implementation and Full Scale Testing $28,540 Task 6—WWTP Process Modeling and Alternatives Evaluation $25,800 Task 7—Tertiary Treatment Alternatives Identification and Evaluation $31,980 Task 8—Variance and Watershed Alternatives Evaluation $59,450 Task 9—Alternatives Evaluation and Study Report $35,330 Task 10—Project Management and QA/QC $29,900 PAGE 9 OF 10 Attachment A CH2M HILL 2017 HOURLY CHARGE RATES )�p'C Or pUBLtC 1 �,j WISCO far pal{hOS1l, NSIN PROFESSIONALS AND TECHNICIANS Classification Hourly Rate Senior Consultant $220 Senior Project Manager,Senior Project Engineer $210 Senior Technologist $180 Senior Designer $170 Designer $165 Project Engineer II $160 Project Engineer I $155 Engineer II $150 Associate Engineer,Senior CAD Technician $120 Junior Engineer,Scientist $115 Senior Clerical $100 CAD Technician $90 Graphic Artist,Clerical $75 Project Accountant $50 Expenses Expense Type Estimating Method Rate Photo Copies Service Center $0.05 Reprographics Service Center varies Auto mileage Travel Current IRS rate Auto Rental Travel Actual Other Travel(FTR Guidelines) Travel Actual Equipment Rental Operating Expense Actual Postage/Freight Operating Expense Actual Rates subject to change on January 1,2018 PAGE 10 OF 10