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Page 2 • <br /> January 21 , 1994 <br /> any evidence of volatile organic compounds (VOCs) in either well. Lead was present <br /> slightly above the recommended allowable limit (RAL) for drinking water, however, <br /> based on available data collected to date, Liesch does not believe this is associated with <br /> the Custom Motors operation. <br /> To mitigate environmental concerns on the Custom Motors parcel, several items must be <br /> considered. <br /> 1. Work completed by Liesch was a screening effort to identify possible problem <br /> areas and does not delineate the comlpete areal extent of contamination. Further <br /> work is needed to accomplish this. <br /> 2. Custom Motors has implemented several management practices to reduce <br /> environmental problems but it appears additional items should be considered. <br /> These include the use of concrete pads to retain vehicle fluids, conducting certain <br /> operations under roof, preventing run on into vehicle disassembly areas and other <br /> methods to prevent vehicle fluid loss. <br /> 3. Some soil and possibly limited groundwater remediation may be necessary to • <br /> achieve environmental standards for residential development. The Minnesota <br /> Department of Health has recently established a soil lead level of 300 mg/kg for <br /> residential areas. Data from Liesch's work suggests soil lead levels in some areas <br /> of the site significantly exceed this value (up to 9400 mg/kg near the garage). <br /> Implementation of additional containment measures, further soil assessment and limited <br /> soil clean-up at this time would minimize further contamination and provide expectations <br /> of meeting the goal of possible residential use for the Property. <br /> maw:ENV/64102/memo 12194.wp <br /> • <br /> B.A.LIESCH ASSOCIATES, INC. 13400 15TH AVENUE NORTH MINNEAPOLIS, MINNESOTA 55441 <br />