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Department Approval � Item Description: l�'�, Jy REQUEST FOR COUNCIL ACTION Date: 3/9/09 Item No.: 7.g City Manager Approval � / Contract to Prepare a Response Action Plan for the Twin Lakes AUAR Subarea I Infrastructure Improvements BACKGROUND On June 9, 2008, the City Council approved a contract with WSS & Associates to complete the design work for the Twin Lakes AUAR Subarea I Infrastructure Improvements. These include: • Intersection improvements at County Road C and Cleveland Avenue • Cleveland Ave / I35W ramp and intersection improvements • Intersection improvements at Fairview and Terrace Drive • Twin Lakes Parkway from Cleveland Ave. to Fairview Ave • Mount Ridge Road from County Road C2 to Twin Lakes Parkway • Prior Avenue south of Twin Lakes Parkway to County Road C • Municipal utilities including sanitary sewer, water, and stormwater. � The scope of services for the geotechnical investigation and environmental investigation was undefined � at the time of the approval of the contract with WSS. The contract not to exceed cost, $458,036.00, did � not include the fees for environmental work. As described in Section 4.10 of the contract, WSS has � teamed with Sraun Intertec to perform geotechnical and environmental investigations where needed � within the right- of- way. On October 20, 2008, the City Council amended the contract with WSS to � include the geotechnical and environmental investigations. These investigations consisted of soil � borings within the proposed right- of- way. The soil borings have characterized the types of � contamination within the project right- of- way. , In order to move forward with the construction of the public improvements, Sraun Intertec needs to , prepare a response action plan (RAP) to provide for the appropriate management of petroleum and non- � petroleum contaminated soil and groundwater that is expected to be encountered. The RAP will be � submitted for review and approval to both voluntary programs within the MPCA; the Voluntary , Investigation and Cleanup (VIC) program, which manages non-petroleum contamination, and the , Petroleum Srownfields (PS) Program, which manages petroleum- related contamination. As a part of � this contract amendment, Sraun Intertec will assist the City in preparing an enrollment application for , MPCA VIC and PS Programs. � POLICY OBJECTIVE � Since the preparation of the response action plan requires professional service contracts, the City Council is being asked to authorize the City Manager to execute this agreement amendment. Page 1 of 2