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-SEQUOIA(i�'NALYTICAL <br /> 1900 Bates Avenue * Suite LM * Concord, California 94520 <br /> (510) 686-9600 FAX (510) 686-9689 <br /> ,:...Kapreallan Engineering, Inc. Client Project ID: Unocal,2835 Navy Drive, Stockton Sampled: Apr 29, 1992",:. <br /> P.O. Box 996 Sample Descript.: Water,W-1 Received: Apr 30, 1992.". <br /> "Benicia, CA 94510 Analysis Method: EPA 5030/8ql5/8020 Analyzed: May 1, 1992 <br /> x". <br /> '..'-Attention: Mardo Kaprealian, P.E. Lab Number: <br /> 204-1276 Reported: May 8, 1992'0--" <br /> ........... <br /> .......... <br /> ......... ... .. ........ ......... ....................... ... <br /> . ......... .................... — %. .... <br /> TOTAL PETROLEUM FUEL HYDROCARBONS WITH BTEX DISTINCTION (EPA 8015/8020) <br /> Analyte Method Detection Limit Sample Results <br /> pg/L(ppb) pg/L(ppb) <br /> ...............................................X., ............ <br /> . .... ................... <br /> ....................... <br /> . . ....... .. <br /> .... ................................ <br /> ......................... <br /> Benzene............................................................................. 0.30 ..................................... N.EU). <br /> Toluene.............................................................................. 0.30 ..................................... N.D. <br /> EthylBenzene.............................. ................................... 0.30 ..................................... N.D. <br /> .......... <br /> .... . ... ...... <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> SEQUOIA ANALYTICAL <br /> 4ttAhleeffo <br /> Sco i�, <br /> Project Manager 2041276.KEI <1> <br />