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Scope of Work and Cost Estimate Soil Vapor Survey Main Street Corridor Development - Centerville, Minnesota Page 3 Development RespOllse Action Plan It is our understanding that the City has initiated a planning process to redevelop the area adjacent to the corridor into a mix of commercial buildings with underground parking, townhomes and multi-family dwellings. As petroleum contamination has already been identified on multiple Properties, we strongly recommend that a Development Response Action Plan (DRAP) be prepared and submitted to the MPCA Petroleum Brownfields Program (PBP) for approval. Concurrent with the submittal of the DRAP, the City will need to prepare an application to enter into the PBP. The PBP was established to assist voluntary parties who address environmental concerns, and in exchange, they can issue Letters of Assurance to limit future liabilities as part of Site redevelopment activities. Specifically, we will request from the PBP: . A General Liability Letter on behalf of the City . Tank Removal Verification Letter for former UST(s) . File Closure Confirmation Letter(s) for Sites closed through the LUST Program. . Review of existing documentation . Review and Approval of the DRAP ProSource will prepare the DRAP to address handling contaminated soil and/or ground water that may be encountered during redevelopment/construction activities. The DRAP will be completed in accordance with the MPCA PBP Guidelines. Specifically, the DRAP will discuss: . Summary of site history and previous environmental investigations; . Anticipated Response Actions to address the presence of contaminated soil and/or ground water; . Methods and procedures to implement Response Actions; . Confirmation sampling and analysis; . Site restoration plan; . Contingency planning in the event an unknown condition is encountered; and . A description of the proposed development and tentative schedule. Cost Estimate Our cost estimate to complete the Soil Vapor Survey and prepare the DRAP is $11,196. If additional costs are incurred by completing work outside the scope of this proposal, those costs will be brought to your attention immediately upon discovery and additional work may be completed per your approval. The costs below include labor, equipment, subcontractors, and expenses related to this Scope of Work. Soil Vapor Survey, File Review and Reporting: Prepare PB Application, DRAP and Liaison with MPCA: Total: $ 8,830 $ 2366 $ 11,196 JtL ProSource Technologies, Inc. June 9, 2008