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SEQUOIA ANALYTICAL <br /> 1900 Sates Avenue • Suite LM • Concord. California 94520 <br /> (510) 686.9600 FAX (510) 686.9689 <br /> X03 <br /> )ect ID:... /30-0136 Received: Apr 6, 1992 <br /> rlce gleet Pro Mobil -043 Sampled: Apr 3, 1992 <br /> Alton Geoscle <br /> 5870 Stoneridge Drive, Suite 6 Matrb( Descript. Sob Analyzed: Apr 8, 1992 <br /> Pleasanton. CA 94588 Analysis Method: EPA 5030/8015/8020 <br /> Reported: 13, 1992 <br /> `Attention: Stephan Rosen First Sample : 204-0147 Pa . <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with STEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Lover/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg <br /> (pPm) (Ppm) (ppm) (ppm) (ppm) <br /> 204-0147 B-117." N.D. N.D. N.D. N.D. N.D. <br /> 204-0148 B-119.5.10 N.D. N.D. N.D. N.D. N.D. <br /> i <br /> 204-0149 B-127.5-8 N.D. N.D. N.D. N.D. N.D. <br /> 204-0150 5-129.5-10 N.D. N.D. N.D. N.D. N.D. <br /> 204-0151 B-13 7.5.8 N.D. N.D. N.D. N.D. N.D. <br /> 204-0152 B-139.5-10 N.D. N.D. N.D. N.D. N.D. <br /> 204-0153 B-14 7.5-8 N.D. N.D. N.D. N.D. N.D. <br /> 204-0154 B-149.5-10 N.D. N.D. N.D. N.D. N.D. <br /> 204-0155 B•15 7.5-8 N.D. N.D. N.D. N.D. N.D. <br /> 204-0156 B-15 9.5-10 N.D. N.D. N.D. N.D. N.D. <br /> [Detecti:on:LUm1ts: 1.0 0.0050 0.0050 0.0050 0.0030 <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 limn of cfoRirc'ti�ii. <br /> SEQUOIA ANALYTICAL <br /> A. Ch 0 <br /> Project Manager 2MI47ALT <1> <br />