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CET <br /> CONDOR EARTH TECHNOLOGIES INC. <br /> 1125 No. Golden State Blvd. 21663 Brian Lane <br /> Suite H P.O. Box 3905 <br /> January 19, 1995 PO. Box 3448 Sonora, CA 95370 <br /> Turlock, CA 95381 (209)532-0361 <br /> (209)668-9234 FAX(209)532-0773 <br /> FAX(209)666-9248 <br /> Mr. Jon Weiss <br /> Libbey Owens Ford Co. <br /> 500 East Louise Ave. <br /> Lathrop, CA 95330 <br /> RE: CONFIRMATION SOIL SAMPLE LOCATIONS AND ANALYTICAL RESULTS <br /> FORMER SPOILS STOCKPILE AREA, LIBBY OWENS FORD CO. <br /> 500 EAST LOUISE AVE. <br /> LATHROP, CALIFORNIA <br /> Dear Mr. Weiss: <br /> Please find attached analytical results and a drawing showing sampling locations for the <br /> confirmation soil sampling performed by Condor Earth Technologies, Inc. (Condor) at the former <br /> spoils stockpile area at the above referenced facility. Condor randomly chose 16 sample locations, <br /> four in each of the four composite areas, as illustrated. The four samples in each of the four <br /> composite areas were composited and analyzed by Geoanalytical Laboratories, Inc. (Geoanalytical) <br /> for total extractable petroleum hydrocarbons (TEPH) according to 3550 LUFT methodology. <br /> Additionally, one of the four samples in each of the four composite areas was analyzed by <br /> Geoanalytical for BTEX (Benzene, Toluene, Ethyl Benzene, and Total Xylenes) according to EPA <br /> Method 8020. <br /> When the stockpiled soil was removed from the spoils stockpile area, approximately 1.5 feet <br /> of native soil was also removed. All of the soil samples were collected at a depth of six inches below <br /> the soil surface of the former stockpile area or, therefore, at approximately 2.0 feet below the original <br /> ground surface. <br /> The sampling locations and the analytical results of the soil sampling are shown on the <br /> attached drawing. All four of the composite samples analyzed for TEPH tested non-detectable for <br /> kerosene, diesel and motor oil at the detection limits of 5.0, 5.0 and 50 mg/kg, respectively. All of <br /> the BTEX compounds tested non-detectable at the detection limit of 5.0 µg/kg, with the exception <br /> of sample 257A-CF25-12/29/94, which Geoanalytical reported as having a concentration of 7.1 µg/kg <br /> Toluene. It should be noted that the value of 7.1 µg/kg is far below the recommended action levels <br /> from the LUFT manual for Toluene in hydrocarbon contaminated soil, ranging from 300 to 50,000 <br /> ENVIRONMENTAL GEOLOGICAL 0 ENGINEERING GEOTECHNICAL <br />