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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> ........... <br /> X <br /> ::..'ERM-West <br /> Client Project ID: 4004 El Dorado, Stockton <br /> Sampled: Nov 13, 1990�.-. <br /> 2001 P Street, Suite 200 Matrix Descript: Soil Received: Nov 13, 1990 <br /> Sacramento, CA 95814-5213 Analysis Method: EPA 5030/8015/8020 Analyzed: Nov 13, 1990 <br /> : - <br /> Attention: Jim Quinn First Sample#: 011-9097 Reported: Nov 20, 1990 <br /> ............. <br /> .......... <br /> .......... ...... <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with STEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg mg/kg <br /> (ppm) (ppm) (ppm) (ppm) (ppm) <br /> 011-9097 MP3, 35'6'-36' N.D. 0.0050 0.0080 N.D. 0.0050 <br /> 011-9098 MP3, 45'-45'6' N.D. 0.010 0.016 N.D. 0.014 <br /> 011-9099 MP4, 35'h'-36 N.D. N.D. 0.0070 N.D. 0.0050 <br /> 011-9100 MP4, 44'-44'h' 94 0.16 2.1 1.3 4.3 <br /> li <br /> Detection Limits: 1.0 0.0050 '0.0050 0.0050 0.0050 <br /> SII <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.D.were not present above the stated limit of detection, <br /> SEQUOIA ANALYTICAL Please Note: <br /> The above samples do not appear to contain gasoline,except for sample 011-9100 which does appear to <br /> contain gasoline. <br /> Maile A. McBWney <br /> II Project Manager 119068.ERM <7> <br />