R2012-117 AUTHORIZING CONTRACT FOR ENVIRONMENTAL SERVICES

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DEPARTMENT OF WATER MANAGEMENT Memorandum No. 2012-12 May 15, 2012 TO: Mayor Michael T. McElroy and City Council FROM: Ryan P. McCrady, City Manager Keith D. Alexander,Director of Water Management SUBJECT: Corley Landfill Contract for Environmental Services with Kelron Environmental SUMMARY RECOMMENDATION: Council adopt the attached Resolution authorizing a Contract for Environmental Services with Kelron Environmental for the Corley Landfill at a cost not to exceed $47,875. BACKGROUND: The City of Decatur owns an 11.3 acre parcel of land commonly identified as the Corley landfill, located north of South Side Drive, south of the Sangamon River, and west of U.S. Business Route 51, adjacent to South Side Auto Service. The landfill was used for decades to dispose of lime sludge residual (primarily calcium carbonate) a byproduct of the water purification process from the old and new South Water Treatment Plants. Lesser amounts of street sweeping, construction and demolition debris from the Public Works and Water Departments were also deposited into the landfill. Due to Illinois Environmental Protection Agency (IEPA) regulations, the landfill was decommissioned and closed in 1995. Since then the City has had to conduct IEPA required post closure quarterly groundwater monitoring, water quality testing, reporting and miscellaneous permit requirements. These services have been performed by Kelron Environmental with the assistance of City staff for approximately the past 10 years. Expenses for Kelron's services, City staff assistance, supplies, etc. are approximately $12,000 annually. It is desirable for the City to eliminate these annual expenses by obtaining an Affidavit for Certification of Completion of Post-Closure Care from IEPA. Recently the City entered into a Compliance Commitment Agreement (CCA) with IEPA to accomplish this goal. Per the terms of the CCA, the City is required to continue the quarterly groundwater monitoring, water quality testing, reporting, and miscellaneous permit requirements and conduct more extensive groundwater monitoring, testing and statistical analysis. It is anticipated that the affidavit can be obtained in mid 2013. Since the results of the upcoming monitoring, testing, and statistical analysis cannot be determined ahead of time, the proposed contract allows for the possibility of additional required services through the end of 2013. Significant amounts of statistical data will be provided to, and interpreted by, IEPA during this process. Since IEPA's interpretations and resulting directives cannot be determined ahead of time, a 25% contingency is included in the proposed contract.