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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> IWO (415) 364-9600 FAX (415) 364-9233 <br /> f <br /> ERM-West Client Project ID 4b04 EI Dorado, Stockton Sampled:' Nov 9, 1990 <br /> 2001 P Street, Shite 200 Matrix Descript. Water Received: Nov 9, 1990'.%: <br /> i :..Sacramento, CA 95814-5213 Analysis Method: EPA 5030/8015/8020 Analyzed: Nov 9, 1990: <br /> Attention Jim Quinn First Sample# 011-9080 Reported: Nov 20, 1990 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION8015 8020 <br /> EPA <br /> t / ) <br /> r <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Mg/L ug/L ug/L Fig/L F<g/L <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> 011-9080 MP2•GW 230,000 13,000 24,000 2,900 3,100 <br /> I <br /> i <br /> III <br /> I <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 H.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL Please Note: <br /> The above samples appear to contain gasoline, <br /> Maile A. M irney <br /> Project Manager 119068.ERM <19> <br /> I <br /> i <br />