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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364`'1600 FAX(415) 364 9233 <br /> 1900 Bates Avenue Suite E_ Concord,CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 %W FAX(916)921 0100 <br /> Qroundwater'T Chnology Client project Ib Chevron#9-1918, Stockton, CA Sampled Juri 1,V1995, <br /> 1401 Halyard Drive, Suite 140 Sample Matrix Soil Received Jun 2, 1995 <br /> ' West Sacramento, CA 95691 Analysis Method EPA 5030/8015/8020 Reported Jun 6, 1995 <br /> , Attention Jason Fedota First Sample # 506-0126 ` <br /> ..�.,'qe�r{t w i }�.. nY� n� Y } .. v v v 4 a 4 \ ? ♦ ♦ .. � ! Fi v • k + v n <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS With BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I.D. LD <br /> mg/kg 506-0126 506-0127 506-0130 506-0131 506-0132 506-0133 <br /> SB10-465 SB10-515 SB11-160 SB11-210 SB11-260 SB11-310 <br /> Purgeable <br /> Hydrocarbons 1 0 N D N D N D N D 240 69 <br /> Benzene 00050 N D N D N D N D N D N D <br /> Toluene 00050 N D N D N D N D N D N D <br /> Ethyl Benzene 00050 N D N D N D N D N D 00053 <br /> *Total Xylenes 00050 N D N D N D N D N D 0 043 <br /> Chromatogram Pattern -- -- -- weathered Weathered <br /> Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 50 1 0 <br /> Date Analyzed 6/2/95 6/2/95 6/2/95 6/2/95 6/2/95 6/5/95 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-2 GCHI'-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 88 77 90 89 89 92 <br /> (OC Limits = 70-130%) <br /> Purgeable 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, FLAP #1624 <br /> Ll Linda C Schneider <br /> Project Manager <br /> 5060120 GRW <2> <br />