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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 ENVIRONMENTAL HEALTH <br /> (416) 364-9600 FAX (415) 364-9233 <br /> PERM IT/S-P-,RVI;"L-- <br /> 0, <br /> :ti <br /> .......... <br /> Sampled: Nov 17, 1989 <br /> Kaprealian Engineering, Inc. Client Project ID: Unocal, Stockton, 7303 Pacific Ave. <br /> Nov 20, 1989'-L <br /> P.O. Box 913 9�"L <br /> Matrix Descript: Soil Received: II <br /> :,.,:Benicia, CA 94510 Analysis Method: EPA 5030/8015/8020 Analyzed: Nov 20, 198 <br /> Mardo Kaprealian, P.E. First Sample#: 911-2646 Reported: Nov 21, 11989:-'-,- <br /> `­--'. .... ... <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 /> mg/kg mg/kg mg/kg mg/kg mg/kg <br /> (ppm) (ppm) (ppm) (ppm) (ppm) <br /> 911-2646 Al N.D. N.D. N.D. N.D. N.D. <br /> 911-2647 A2 98 1.6 4.4 1.2 7.9 <br /> 911-2648 BI N.D. N.D. N.D. N.D. N.D. <br /> 911-2649 B2 6,500 70 .770 230 1,400 <br /> Detection Limits: <br /> 1.0 0.05 0.1 0.1 0.1 <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 <br /> t '11 i <br /> Belinda C. Vega <br /> Project Manager 9112646.KEI <2> <br />