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SEQUOIA 'ANALYTICAL <br /> 1900 Bates Avenue - Suite LIVI - Concord, California 94520 <br /> (510) 686-9600 FAX (510)686-9689 <br /> '.' Lod.; '.:.::-Kaprealian Engineering, Inc. Client Project ID: Unocal, 601 E. Kettleman Ln. I Sampled: Dec 16, 1991 <br /> P.O. Box 996 Matrix Descript: Soil Received: Dec 17, 19,91 " <br /> Benicia, CA 94510 Analysis Method: EPA 5030/8015/8020 Analyzed: Dec 23. 1991... <br /> Attention: Mardo Kapreatian. P.E. First Sample 112-M9 Reported: Jan 2, 1992 .. <br /> 01, <br /> .............. <br /> ....................... <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/81320) <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 /> 112-0659 MW4-(5) N.D. N.D. N.D. N.D. N.D. <br /> 112-0660 MW4-(10) N.D. N.D. N.D. N.D. N.D. <br /> 112-0661 MW4-(15) N.D. N.D. N.D. N.D. N.D. <br /> 112-0662 MW4-(20) N.D. N.D. N.D. N.D. N.D. <br /> 112-0663 MW4-(25) N.D. N.D. N.D. N.D. N.D. <br /> 112-0664 MW4-(30) N.D. N.D. N.D. N.D. N.D. <br /> 112-0665 MW4-(35.5) N.D. N.D. N.D. N.D. N.D. <br /> 112-0666 MW4-(40,5) N.D. N.D. N.D. N.D. N.D. <br /> 112-0667 N.D. N.D. N.D. N.D. N.D. <br /> 112-0668 MW5-(10) N.D. N.D. N.D. N.D. N.D. <br /> Method Detection Limits: 1.0 0.0050 0.0050 0.0050 0.0050 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> SEQUOIA ANALYTICAL <br /> So Chie o <br /> kA,�a� aV <br /> Project Manager <br /> 1120659.KEI el> <br />