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Sequoia <br />Analytical <br />o8G ChcsapcaKc Drive Redwood Cit) CA 94G63 14151 304 9600 FAX 14151 304 9233 <br />19M $atec Avenue Suite L Concord CA Q4520 (5101 6R6 96M FAX (510` 686 46R14 <br />819 Stn4cr Avenue Suitc 8 Sacramento Ca 95834 (916) 921 9600 FAX (916) 921 0100 <br />wroundwater Technology <br />Client Project ID <br />Chevron #9-2033, Stockton, CA <br />Sampled ry Mar 16, 1995 <br />1401 Halyard Drive, Suite 140 <br />Sample Matrix <br />Soll <br />3/30/95 <br />Instrument Identification <br />Received Mar 22, 1995 n <br />West Sacramento, CA 95691 <br />Analysis Method <br />EPA 5030/8015/8020 <br />88 <br />Reported Apr 4, 1995< <br />Attention Jason Fedota <br />First Sample # <br />503-1105 <br />r <br />-.aca.:''ri� ^�•`•; , . <br />.. ,,.,.. .,.. 4r .... <br />, x fi ,.. ,t <br />, ....,,,..` <br />„ ;� <br />v u,. ,.s � ,. , .. .,x y, x.'.Y <br />TOTAL PURGEABLE PETROLEUM HYDROCARBONS with <br />BTEX DISTINCTION <br />Reporting <br />Sample <br />Sample <br />Sample <br />Sample <br />Sample <br />Analyte Limit <br />I.D. <br />I.D <br />I.D <br />I.D. <br />I.D. <br />mg/kg <br />503-1105 <br />503-1106 <br />503-1107 <br />503-1108 <br />503-1109 <br />SB -1-20 <br />SB -1-25 <br />SB -1-30 <br />SB -1.35 <br />Composites <br />Purgeable <br />Hydrocarbons 10 <br />N D <br />N D <br />42 <br />28 <br />N D <br />' Benzene 00050 <br />0 015 <br />0 018 <br />074 <br />046 <br />N D <br />Toluene 00050 <br />N D <br />N D <br />0 049 <br />0 084 <br />N D <br />Ethyl Benzene 00050 <br />N D <br />N D <br />020 <br />030 <br />N D <br />Total Xylenes 00050 <br />N D <br />N D <br />039 <br />025 <br />0 016 <br />Chromatogram Pattem <br />- - <br />- - <br />Gasoline <br />Gasoline <br />Gasoline <br />C6 -C12 <br />C6 -C12 <br />C6 -C12 <br />uuainy LwQntroi uata <br />Report Limit Multiplication Factor <br />10 <br />1 0 10 10 <br />10 <br />Date Analyzed <br />3/30/95 <br />3/30/95 3/30/95 3/30/95 <br />3/30/95 <br />Instrument Identification <br />GCHP-1 <br />GCHP-1 GCHP-1 GCHP-1 <br />GCHP-1 <br />Surrogate Recovery, % <br />88 <br />83 98 <br />90 <br />(OC Limits = 70-130%) <br />Purgeabie Hydrocarbons are quantitated against a fresh gasoline standard <br />Analytes reported as N D were not detected at or above the reporting limit <br />SEQUOIA ANALYTICAL Please Note <br />ELAP #1624 'Matrix interference <br />1�3//� 1L;,:�;«�; <br />Janda C Schneider <br />Project Manager <br />5031072 GRW c R > <br />