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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue - Suite LM - Concord, California 94520„ <br /> r (510) 686-9600 FAX (510) 686-9689 <br /> r <br /> Alton Geoscience Client Project ID: 04343/30-136-01 Sampled: Nov 26, 1991�r <br /> :1000 Bumett Ave. Suite 140 Matrix Descript: Water Received: Nov 27, 1991': <br /> Concord, CA 94520 Analysis Method: EPA 5030/8015/8020 Analyzed: Dec 4, 1991:` <br /> Attention: Tridib Guha First Sample#: 111-1351 <br /> PI Reported:a t:d: D <br /> ec 9 1991;; <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 /> Ng/L Ng/L Fig/L Ing/L Ng/L <br /> (Ppb) (ppb) (ppb) (ppb) (ppb) <br /> 111-1351 AW-11 N.D. N.D. N.D. N.D. N.D. <br /> 111-1352 AW-2 N.D. N.D. N.D. N.D. N.D. <br /> 111-1353 AW-3 610 N.D. N.D. N.D. 0.48 <br /> 111-1354 AW-4 N.D. N.D. N.D. N.D. N.D. <br /> 111-1355 AW-5 N.D. N.D. N.D. N.D. N.D. <br /> 111-1356 AW-6 N.D. N.D. N.D. N.D. N.D. <br /> 111-1357 AW-7 N.D. N.D. N.D. N.D. N.D. <br /> 111-1358 AW-8 N.D. N.D. N.D. N.D. N.D. <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.D.were not present above the stated limit of detection, <br /> SEGUOi ANALYTICAL <br /> Scott A Chleffo <br /> Project Manager 1111351.ALG <1> <br />