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Public Works Memorandum <br /> NO. 2009-112 <br /> DATE: December 8, 2009 <br /> TO: Honorable Mayor McElroy and City C uncil <br /> FROM: Ryan P. McCrady, City Manager / /A <br /> Richard G. Marley, P.E., Director of Public Works <br /> SUBJECT: Ground Water Ordinance for Harper Oil, 415 West Grand Avenue <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 the area within 200 feet of the <br /> Harper Oil Company site, at 415 West Grand Avenue. <br /> BACKGROUND: <br /> Prior Council Action: <br /> There have been no prior Council actions regarding ground water contamination at the Harper <br /> Oil Company site at 415 West Grand Avenue. <br /> Prior Council Action on Ground Water Ordinances: <br /> Since 2002, the City Council has authorized 10 ground water ordinances at various locations in <br /> the City. <br /> Ground Water Ordinance: <br /> City staff was contacted by representatives of Harper Oil Company regarding their remediation <br /> effort resulting from leaking underground storage tanks on the property. The estimated area <br /> impacted by contaminated ground water is shown on Figure 2 in the information provided by <br /> Harper Oil's environmental engineer. The drawing indicates that some soil contamination has <br /> encroached into the alley west of the station. <br /> A Ground Water Ordinance is a tool used by the Illinois Environmental Protection Agency <br /> (IEPA)to remediate properties where soil and ground water under the site have been <br /> contaminated by leaking underground storage tanks. This ordinance prohibits the use of <br /> groundwater as a potable water supply within the area identified as having the maximum <br /> potential for ground water contamination from gasoline released from the Harper Oil site. <br /> In this case, the area identified by the ordinance is all property within 200 feet of the site. Harper <br /> Oil's environmental engineer, Ketchum&Eves, Inc., has completed a water well survey with the <br /> Illinois State Geological Survey which is the State agency that tracks permits for drilling wells. <br /> Ketchum &Eves has also conducted a field survey and distributed letters to all residents within <br /> the area and has determined that no potable water wells exist in the proposed ground water <br /> ordinance area. <br /> Page I 1 <br />