2007-52 PROHIBITING THE USE OF GROUNDWATER AS A POTABLE WATER SUPPLY

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' � + . ENGINEERING & INFRASTRUCTURE MEMORANDUM NO. 2007 - 28 May 24, 2007 TO: Honorable Mayor Osborne and City Council FROM: Steve Garm , City Manager � (�� q�� , Richard G. rley, P.E., Director of Engingering Infrastructure Matthew C. ewell, P.E., City Enginee,�f(,(/� V"' SUBJECT: Limited Area Ground Water Ordinance � Former Clark Gas Station, 1550 East Pershing Road SUMMARY RECOMMENDATION: It is recommended by staff that the City Council approve the attached Ordinance prohibiting the use of ground water as a potable water supply within a 2,500 foot radius of 1550 East Pershing Road and that the Mayor be authorized to execute and the City Clerk to attest the Ordinance. BACKGROUND: The City's Department of Engineering and Infrastructure was contact d by representafives of Premcor Refining Group, Inc., regarding their efforts to remediate co taminated soils and ground water at 1550 East Pershing Road. The Premcor Refining Group is u dertaking a contamination remediation effort as the result of a leaking underground storage tank at the site. On behalf of Premcor, Environmental Management and Technologies Inc. has been coordinating the remediation wark with the Illinois Environmental Protection Ager�cy(IEPA). The IEPA has advised that a remediation option is for the company to request that the City pass an Ordinance � prohibiting the installation of new wells to supply drinking water within approximately 2,500 feet of the 1550 East Pershing Road site. Staff has reviewed this request and considers the proposed ground water restriction to be ; acceptable and similar to other Ground Water Ordinances the City has approved in the past. There are no known potable water wells in the area covered by the Ordinance. The restricted area is served by the City's water distribution system. Staff has attached the original letter from Environmental Managemen and Technologies, Inc., ! which outlines the remediation efforts currently taking place and why they are necessary. , � I POTENTIAL OBJECTION: There are no known obj ctions to adopting this ordinance.