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Home My WebLink AboutAECOM Amendment 3 Gas Well Monitoring Kienast & Paulus Quarries AECOM AECOM 558 North Main Street Oshkosh,WI 54901 aecom.corn Date RECEIVED January 7, 2019 AECOM Project No. IAN 1 0 2019 60427918 Mr. James Rabe, PE, CPESC Director of Public Works JEP t OF PUBLIC WORKS City of Oshkosh OSHKOSH, WISCONSIN 215 Church Avenue PO Box 1130 Oshkosh, WI 54903-1130 Amendment Request Number 3 for Continued Environmental Assistance and Gas Well Monitoring at Kienast and Paulus Quarries Dear Mr. Rabe, AECOM Technical Services, Inc. (AECOM) is requesting an amendment to the agreement dated May 27, 2015 (AECOM Proposal Number OPP-381501), City Purchase Order No. 180412, Amendment 1 dated February 27, 2017, and Amendment 2 dated July 13, 2017. This amendment request is for additional services completed to date and for continued monthly monitoring of the Landfill Gas (LFG)wells from January 2018 to December 2019. In addition, the amendment provides a scope of work and estimated costs to assist the City in land acquisition and interfacing with Wisconsin Department of Natural Resources (WDNR). Additional Scope of Work Conduct Monthly Monitoring of LFG Wells Additional months (January 2018 to December 2019) Land Acquisition Assistance Provide legal descriptions and supporting documents for Plan Commission and Common Council consideration WDNR Interface Prepare Project Summary, GEMS Reporting, attending meetings, and interface with WDNR This amendment was prepared based on the following assumptions: • Monthly Monitoring will continue through December 2019. • Land acquisition assistance will include preparation of a draft CSM associated with a lot creation and two legal descriptions. In addition, AECOM will submit one draft document for Plan Commission and Common Council consideration. Once approved, AECOM will provide final documents stamped by a Wisconsin certified PLS. • Additional WDNR interface and meetings will be necessary based upon recent discussions with WDNR Landfill Engineer Mrs. Tess Brester. Additional Monthly Monitoring AECOM proposes to continue monthly methane monitoring activities based on original discussions with WDNR personnel and in an effort to collect LFG system design data. At each gas monitoring well, initial percent of the LEL of methane (percent LEL methane), percent methane gas (percent methane), percent oxygen (percent 02), percent of carbon dioxide (percent CO2), and groundwater levels will be measured. The LEL is the minimum concentration of a particular combustible gas or vapor necessary to support its combustion in air. The LEL of methane gas is 5% K:1Projects160427918_Kienast Quarry Investigation1100-CONTRACT'Amendment 3160427918_Kienast Paulus Quarries Amendment 3 dock 1/5 AECOM methane by volume. Observations (such as ground condition, barometric pressure, and monitoring well conditions) will also be recorded. After initial readings are recorded, monitoring wells will be purged with a pump at a rate of approximately two liters per minute. Continuous percent LEL methane is to be measured as the well is purged. A final reading will be recorded when consecutive methane readings are within ±10% LEL. Final measurements include percent LEL methane, percent methane gas, percent CO2, and percent 02 The length of time required to achieve the final reading is typically unique to each well. We have been completing this effort since April 2016. Amendment 1 provided budget to complete the monitoring through March, 2017 and Amendment 2 through December 2017. We have been requested by City staff to continue monitoring through December 2019. It is currently anticipated that construction of the landfill gas mitigation system will be underway by this time. Monthly costs to perform the monitoring are approximately $1,260 per month for 24 months. These costs include labor and the rental of testing equipment. Please note we have been scheduling the sampling events to coincide with Knapp Street Quarries and Timmerman Landfill projects to eliminate multiple shipping charges, reduce rental fees for the monitoring equipment, and provide a single equipment charge for the use of an AECOM truck and other field equipment. The total estimated cost for these additional services is approximately $30,240. Land Acquisition Assistance AECOM will prepare a draft CSM that creates two parcels from the current 1732 Knapp Street parcel. The City plans to acquire a portion of 1732 Knapp Street. The draft documents will be presented to Plan Commission and Common Council for consideration. Once approved, AECOM will finalize the documents and they will be stamped by a Wisconsin Registered PLS. The City will register them with Winnebago County and pay any fees. AECOM will prepare a summary of the Kienast and Paulus Quarries History and Environmental Assessment and Summary of Additional Investigation. These documents will be utilized as support documents for acquisition consideration. The total estimated cost for these additional services is approximately $9,500. The CSM exhibit and legal description along with the lot corner staking will cost approximately $8,000 and the report preparation will cost approximately $1,500. WDNR Interface and GEMs Reporting The WDNR is requesting periodic reporting of the investigation and monitoring results. The information is provided annually through the GEMs WDNR reporting data base. In addition, AECOM will update the WDNR as needed throughout the year as new monitoring information is available. AECOM will attend a meeting requested by WDNR to discuss the potential to involve the Remediation and Redevelopment WDNR program. In addition, this meeting will discuss the potential to involve the Environmental Protection Agency in future subsurface investigation and remediation. AECOM will assist the City in preparing a response to these requests from the WDNR. Included in this task is an anticipated effort for continued negotiation with the WDNR regarding groundwater sampling and dealing with a likely PFAS investigation. Although we have recommended not to sample the groundwater, we believe the WDNR will require this in the near future. The GEMS database will be updated by Dan O'Connell and the project updates will be provided by Paul Timm. The additional meetings or correspondence with WDNR will be provided by Paul Timm along with City staff. K:1Projects160427918_Kienast Quarry Investigation1100-CONTRACT\Amendment 3/60427918 Kienast Paulus Quarries Amendment 3.docx 2/5 . AECOM The anticipated cost to provide these services through December, 2019 is$12,500. The WDNR reporting and interface will cost approximately $3,500. The groundwater and PFAS issue negotiation will cost approximately $4,500. The GEMs database reports (2) will cost approximately $4,500. The services provided will be performed in accordance with the Negotiated 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. AECOM can begin providing these services immediately upon receipt of the signed Amendment Authorization Form (attached). If you have any questions or need to clarify a point, please call Mr. Paul Timm at 920-236-6718. Yours sincerely, "D7A-AfIli fa C COM Technical Services, Inc. ul F. Timm � " evin L. Brehm,ehm, P.E. ,4 Account Manager Associate Vice President encl: Amendment to Agreement Authorization K:\Projects\60427918_Kienast Quarry Investigation1100-CONTRACT\Amendment 316 04 27 9 1 8 Kienast Paulus Quarries Amendment 3.docx 3/5 AECOM 558 N Main Street Oshkosh,Wisconsin 54901 920.236.6710 Amendment to Agreement Amendment No. 3 Environmental and Engineering Services for the Former Kienast and Paulus Quarries City of Oshkosh,Wisconsin AECOM Project No. 60427918 City of Oshkosh Purchase Order No. 180412 RETURN TO: AECOM Date: January 7, 2019 558 North Main Street Oshkosh, WI 54901 Attention: Paul Timm SUMMARY: Original Contract Amount: $116,000.00 Amount Previous Amendments: $58,720.00 Amount this Amendment: $52,240.00 Revised Contract Amount $226,960.00 Amendment# DESCRIPTION AMOUNT 3 Monthly Monitoring ( 24 Months) including $30,240.00 labor and equipment Land Acquisition Assistance $9,500.00 WDNR Interface/ Memorandum $12,500.00 TOTAL $52,240.00 K:\Projects\60427918_Kienast Quarry Investigation\100-CONTRACT\Amendment 3160427918_Kienast Paulus Quarries Amendment 3.docx 4/5 AECOM 558 N Main Street Oshkosh,Wisconsin 54901 920.236.6710 Authorization January 7, 2019 I 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 Amendment 3, to amend AECOM's proposal OPP-381501, dated May 27, 2015 and Amendment 1, dated February 27, 2017 and Amendment 2 dated July 13, 2017 for Environmental and Engineering Services Related to the Former Kienast and Paulus Quarries, Oshkosh, Wisconsin for a revised contract amount of$226,960.00 under the general terms and conditions specified in the proposal. Signa ure Date Mark A Rohloff Print Name City Manager Title/Organization 1 )71/UJLk1A3 Signature Date Pamela R. Ubrig Print Name City Clerk Title/Organization a re Date Lynn A. Lorenson Print Name City Attorney Title/Organization m (DL-iI( ignature Date Trena Larson Print Name Director of Finance Title/Organization K:\Projects160427918 Kienast Quarry Investigation1100-CONTRACT\Amendment 31604 2 7 9 1 8_Kienast Paulus Quarries Amendment 3.docx 5/5