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HomeMy WebLinkAboutLakeshore Riverwalk 2175 Punhoqua St 12-12-2019/�_COM Imagine eliit. M: {./�i� Delivered. Mr. Ray Mauer City of Oshkosh Parks Director 805 Witzel PO Box 1130 Oshkosh, WI 54903 AECOM 558 North Main Street Oshkosh, WI 54901 aecom.com December 12, 2019 AECOM Proposal No. OPP-992573 WDNR BRRTs No. 02-71-584268 Proposal for a Subsurface Assessment at the Lakeshore Riverwalk Site located at 2175 Punhoqua Street, Oshkosh Wisconsin Dear Mr. Mauer, AECOM Technical Services, Inc. (AECOM) is pleased to submit this proposal to the City of Oshkosh (City) to conduct a subsurface investigation to evaluate soil, groundwater and Lake Butte des Morts sediment discovered to be impacted during the construction of the Lakeshore Riverwalk in August 2019. The property is located at 2175 Punhoqua Street, the City of Oshkosh, Winnebago County, Wisconsin (Subject Property); see Figure 1-Site Location Map. U\ckyrOL&uid Petroleum impacted materials were encountered during construction of the Lakeshore Riverwalk the week of August 19, 2019 during the installation of conduit, electrical light pole bases and bollards. Environmental soil samples for waste characterization were collected and were submitted to Pace Analytical Services, LLC for analytical analysis. Analytical results were then used to create a waste profile for disposal at Waste Management's Valley Trail RDF located in Berlin, Wisconsin. All impacted material generated during construction was disposed of at Valley Trail RDF. In addition, at the City's direction AECOM contacted the Wisconsin Department of Natural Resources (WDNR) to notify them of a discharge at the site. AECOM prepared WDNR Form 4400-225 for Notification for Hazardous Substance Discharge (Non -Emergency Only) and submitted documentation to the WDNR on August 29, 2019. AECOM received the attached Responsible Party Letter from the WDNR dated September 4, 2019 identifying required steps to take and documents required to be submitted to the WDNR. To be in compliance with the Responsible Party Letter, AECOM prepared the site investigation work plan submittal required within 60 days of notification. This work was completed under a separate Agreement with the City of Oshkosh, AECOM Project No. 60615373, OPP-974865 dated September 12, 2019. A Work Plan was submitted by AECOM on behalf of the City to the WDNR on October 30, 2019; the Work Plan was given a Notice to Proceed by WDNR on November 12, 2019. Project Understanding The purpose of this scope of work provided in this proposal is to complete a subsurface investigation and report investigation results to WDNR regarding the impacted soil discovered during the construction of the Lakeshore Riverwalk in August 2019 such that the City will comply with the referenced Responsible Party letter. The scope of work includes sampling soil, groundwater and sediment and reporting to and coordination with the WDNR. The purpose of the investigation is to investigate the nature, degree, and extent of contamination encountered during the construction of the Riverwalk. The investigation results will confirm the need for an interim or remedial action and provide the necessary information required to select a remedy. Most of the site where the impacted are believed to be is capped by the recently constructed asphalt Riverwalk; therefore, no interim actions are likely to be required at this time. K:\PROPOSAL\City of Oshkosh\OPP-992573_Lakeshore Investigation\OPP-992573_Lakeshore Investigation Proposal.docx 1/5 — _COCA Imagine it. M� 'Ii Delivered. This proposal was prepared based on the following assumptions: • The City of Oshkosh will arrange for unrestricted access to all areas of the Subject Property during normal business hours, and there are no delays in obtaining access. • Boring locations are approximate and may be move based on field observations. Boring / monitoring wells locations are depicted on Figure 2-Site Detail Map included in the attachments. • Challenging subsurface conditions are anticipated and may delay the project schedule or make installing the monitoring wells infeasible, which may result in increased project costs. AECOM will notify the City if these conditions are encountered and obtain approval if additional costs will be incurred. • The City will directly pay any WDNR review fees or any other fees required. • Sediment sampling will occur after sufficient ice has formed on Lake Butte des Morts to allow safe access as determined by AECOMs Health and Safety Plan. • Standard care will be taken to minimize landscape disturbance during borings and other field activities. However, minor disturbance of the ground surface, due to maneuvering the drilling rig, performing borings, collecting samples, and leveling the rig is inevitable. It is assumed that surface disturbances from routine drilling activities will not require repair. • It is assumed that drilling will be conducted during fair weather. Delays caused by precipitation lasting longer than one hour, subfreezing temperatures, or other unforeseen circumstances, are not taken into consideration and shall constitute a changed condition. A site reconnaissance will be completed with to review proposed boring and other site -related issues. Client personnel will be consulted for site utility clearance as well as AECOM's subcontractor will call Diggers Hotline. AECOM cannot be held responsible for damage to underground features encountered during drilling not identified by Diggers Hotline or Client. Alternatively, AECOM can subcontract for a private utility locator at an additional fee. Scope of sorvices AECOM will provide the environmental services and documentation that will include the following tasks: AECOM will prepare a Health and Safety Plan to be utilized by AECOM staff. Subsurface investigation by means of a truck -mounted drill rig will be conducted. The subcontracted drilling company will be responsible for scheduling the utility clearance activity. The drilling company will perform six borings at predetermined locations at the site. Three of the six borings will be advanced to a depth of 12.0-feet below ground surface (bgs) then converted to permanent monitoring wells. The other three borings will be advanced to no more than 10.0 feet bgs. Groundwater is anticipated to be between 2.0 and 6.0-feet bgs. Approximate borings are illustrated on Figure 2-Site Detail Map included in the attachments. Equipment will be decontaminated between borings using steam cleaning and Alconox or other suitable methods selected by the subcontractor and approved by AECOM. The three soil borings will be abandoned and backfilled with bentonite in accordance with NR 141. Documentation (bore -hole log, photographs, and field notes) of observations including soil/fill type, refuse present, and visual and olfactory observations of the subsurface materials, noting areas of petroleum -like odors or staining. Soil samples from each boring will be collected from 1.0 to 2.0-foot intervals and will be field -screened with a photon -ionization detector (PID). One soil sample from above the water table will be collected from each boring and submitted for laboratory analysis of petroleum volatile organic compounds (PVOCS), polynuclear aromatic hydrocarbons (PAHs) and Resource Conservation and Recovery Act (RCRA) metals. Three permanent, stick-up, 2-inch groundwater monitoring wells will be installed at the predetermined locations, as illustrated on Figure 2-Site Detail Map included in the attachments. Wells will be placed to the south of the identified wetlands. The wells will be constructed in general conformance of NR 141.12 with filter sand 6-inches above the screen and the remaining annular space as a bentonite seal to the ground surface. The wells will be KAPROPOSAL\City of Oshkosh\OPP-992573_Lakeshore Investigation\OPP-992573_Lakeshore 2/5 Investigation Proposal.doex AECOM Imagine it. Delivered. developed with the removal of ten well volumes or pumped dry three times and then allowed to stabilize prior to sampling. The wells will then be purged for three well volumes and sampled via a peristaltic pump and tubing using low -flow sample techniques. Groundwater samples will be collected from each well for laboratory analysis of PVOCs, PAHs and RCRA metals (field filtered with a 0.45-micron groundwater filter). We anticipate a minimum of (4) four sampling events will be required by WDNR. Soil cuttings and groundwater will be placed in separate drums, pending laboratory analysis for disposal. The drums will be then stored at the City Maintenance Garage located adjacent to the site at 1898 Punhoqua Street. If the laboratory analysis indicates non -impacted media, the soils may be thin spread across the site. Groundwater will be disposed of properly depending on the results of the analysis. It will either be poured on the ground or disposed in the sanitary sewer system. If soils or groundwater are impacted it will be disposed under the existing waste profile. Once ice is sufficiently frozen this winter on Lake Butte des Morts, two sediment samples will be collected by AECOM for analysis of Petroleum Volatile Organic Compounds (PVOC), and Naphthalene. Please see Figure 2-Site Detail Map for sample locations. Reporting wnd WDNR Coordination Within 45 days of completion of the field investigation and receipt of the laboratory data, AECOM will prepare a draft Site Investigation (SI) Report for review by the City. A final SI report will be submitted to the WDNR which addresses the City's comments within 60 days for receipt of the analytical data per NR 716.15. AECOM will review the results of the initial round of sampling with the DNR. For the purposes of this proposal AECOM has assumed that the WDNR will require four groundwater sampling events prior to site closure. At this time, the remaining items listed in the Responsible Party Letter (remedial actions options report, remedial and interim action design, implementation, operation, maintenance, and monitoring reports, notifications of residual contamination or continuing obligations, and semiannual reporting) are not included in our scope of services. If needed, a separate proposal will be prepared to assist the City with that effort. We recommend waiting to develop the anticipated future work item budgets to provide realistic estimates based on information as it becomes available. Budget AECOM will perform the above at the subject property for an estimated cost, not to exceed $41,850 in accordance with the labor and unit rates from AECOM and the quote estimates generated by the sub -contractors. "roject "Iask Estimated GOFA Drilllna Subcontractor $5,775 Laboratory Analysis (including QA/QC Samples) $8,675 AECOM Labor and Equipment $14,150 SI Reporting and WDNR Coordination $13,250 Total Estimated Costs $41,850 As with all our agreements, AECOM will only bill for actual time incurred. We reserve the right to request changes in budgets if the scope of work varies from our project assumptions. This includes increases as well as decreases in our budget. The services provided will be performed in accordance with the approved Fee Schedule and conditions of the General Conditions of Service — City of Oshkosh, April 2009, which are expressly incorporated into, and are an integral part of, our agreement for professional services. KAPROPOSAL\City of Oshkosh\OPP-992573_Lakeshore Investigation\OPP-992573_Lakeshore 3/5 Investigation Proposal.docx w __COA/ Deliveei. ��r 'r, Delivered. If you have any questions or need to clarify a point, please call any of the undersigned at 920-236-6718. Yours sincerely, AECOM Technical Services, Inc. (: rew Mott, P.G. (WI) Senior Project Manager enclosures: Authorization Figure 1-Site Location Map Figure 2-Site Detail Map Kevin Brehm, P.E. (WI) ( 1 Associate Vice President, _J K:\PROPOSAL\City of Oshkosh\OPP-992573_Lakeshore Investigation\OPP-992573_Lakeshore 415 Investigation Proposal.docx _COAA Imagine it. Mom` 'I, Delivered. Authorization December 12, 2019 1 hereby certify that the necessary provisions have been made to pay the liability which will accrue under this contract. I hereby authorize AECOM to proceed with the scope of work outlined in AECOM Proposal dated December 12, 2019, OPP-992573 related to the Subsurface Assessment at the Lakeshore Riverwalk Site located at 2175 Punhoqua Street, Oshkosh Wisconsin with a total budget authorization of $41,850 under the general terms and conditions specified in the proposal. Signature Date Mark A Rohloff Print Name City Manager Title/Organization Q Signature Pamela R. Ubrig; Print Name City Clerk Title/�ganization S t e _. Lynn A.Lorenson; Print Name City Attorney Title/Organization Signature Russ Van Gompel Print Name Inkerim Director of Finance Title/Organization Date Date Date KAPROPOSAL\City of Oshkosh\OPP-992573_Lakeshore Investigation\OPP-992573_Lakeshore 5/5 Investigation Proposal.docx Lakeshore Riverwalk Work Plan ���M 2175 Punhoqua Street, Oshkosh, WI SITE LOCATION MAP City of Oshkosh FIGURE 1 Project No.: 60615373 2019-11-01 IVINOTUGH 1333 '31VOS 021 09 0 'SSVNO HIIM (MO1SMJ V3HV'101 ONI>IHVd N31?010:1 '00+SZ ONV OO+ZZ SNOIIVIS N93M139 HON3N1 WONT 03SOdSIO 8'e ONV 03AOW3N S110S 0310VdW1 Wn3lONi3d AO SNOT £LZ 3ldViVS 1N3WIO3S 03SOdOHd L—SSO E 113M ONINOlINOW O3SOdONd LMW-$- 3 hg'w ONINO9 lIOS 03SOdONd LeSu 64 (A183dONd lO3f9n5) lovdm d011WI1031VdIOLLM/ ON3031 1 3Nil A183dONd'X3 PdAll NOW - � �, \dddlll. 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