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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> N.... <br /> ERM-West Client Project ID: 4004 El Dorado, Stockton Sampled: Nov 14, 1990"' <br /> �.".2001 P Street, Suite 200 Matrix Descript: Water Received: Nov 14, 11990y"L <br /> ..'Sacramento, CA 95814-5213 <br /> Analysis Method: EPA 5030/8015/8020 Analyzed: Nov 14, 19k", <br /> ..Attention: Jim Quinn First Sample#: 011-9105 Reported: Nov 20, 1990 <br /> .......... <br /> "IX.... ...... <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Vg/L pg/L pg/L pg/L pg/L <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> 011-9105 MP5-GW 220,000 20,000 32,000 2,500 10,000 <br /> Detection Limits: 30 0.30 0.30 0.30 0.30 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.0.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL Please Note: <br /> l AJ The above samples appear to contain gasoline. <br /> aile A. Mc rney <br /> Project Manager 119W8.ERM <20> <br />