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Pyblic Works Memorandum <br /> NO. 2010-49 <br /> DATE: August 30, 2010 <br /> TO: Honorable Mayor McElroy and City Council <br /> FROM: Ryan P. McCrady, City Manager <br /> Richard G. Marley, P.E., Director of Public Works <br /> SUBJECT: Ground Water Ordinances for the Former Wagner- Intermet Foundry <br /> Facility Located at 700 North Jasper Street in the City of Decatur <br /> SUMMARY RECOMMENDATION: <br /> It is recommended by staff that the City Council approve the attached Ground Water Ordinance <br /> prohibiting the use of groundwater as a potable water supply for a portion of the former Wagner <br /> - Intermet Inc. foundry facility located at 700 North Jasper Street. <br /> PRIOR COUNCIL ACTION: <br /> There have been no prior Council actions regarding ground water contamination at the specific <br /> sites identified in this transmittal. <br /> Prior Council Action on Ground Water Ordinances: <br /> Since 2002, the City Council has authorized 15 ground water ordinances at various locations in <br /> the City. <br /> BACKGROUND: <br /> Ground Water Ordinance: <br /> City staff was contacted by representatives of the former Wagner- Intermet foundry facility <br /> regarding their remediation efforts resulting from leaking underground storage tanks on the <br /> property. A Ground Water Ordinance is a tool used by the Illinois Environmental Protection <br /> Agency(IEPA) to remediate properties where soil and ground water under the site have been <br /> contaminated by leaking underground storage tanks. The ordinance prohibits the use of <br /> groundwater as a potable water supply within the area identified on Exhibit A as having the <br /> maximum potential for ground water contamination from petroleum products released from the <br /> site. <br /> The major benefit of a ground water ordinance is that it serves to keep contaminated water <br /> isolated underground and not allow it to be used for human consumption. Ground water use <br /> prohibition areas within the City are generally served by the City's public water supply so the <br /> prohibition should not create a hardship on area residents or businesses. <br /> Water well information is normally gathered through the use of the Source Water Assessment <br /> Program(SWAP) database. This database is maintained by the Illinois Environmental <br /> Page I 1 <br />