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41 <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9Z33 <br /> 404N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(92S)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical <br /> 1455 McDowell Blvd !North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Cambria Environmental Project Shell Oil Co Sampled 1114/99 to 1/15/99 <br /> 270 Perkins St Project Number 880 Victor Rd-Lodi Received 1/18199 <br /> Sonoma,CA 95476 Project Manager Aubrey Cool Reported 1/28/99 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Linut % Notes* <br /> Blank(continued) 9010405-BLK2 <br /> Toluene 1/25/99 ND ug/1 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 200 <br /> Surrogate a,a a-Trifluorotoluene 0300 317 650-135 106 <br /> Surrogate 4-Bromofluorobenzene it300 332 650-135 111 <br /> LCS 9010405-BSI <br /> Benzene 1/22/99 100 994 ug/1 65 0-135 994 <br /> Toluene 100 972 65 0-135 972 <br /> Ethylbenzene 100 89 8 65 0-135 89 8 <br /> Xylenes(total) 300 286 650-135 95 3 <br /> Surrogate a a,a-Triuorotoluene 300 301 650-135 100 <br /> 9010405-BS2 <br /> Benzene 1/25/99 100 105 ug/l 650-135 105 <br /> Toluene 100 102 650-135 102 <br /> Ethylbenzene 100 945 65 0-135 945 <br /> Xylenes(total) 300 301 650-135 100 <br /> Surrogate a a a-Trifluorotoluene 300 297 650-135 990 <br /> Matrix Spike 9010405-MS1 P901256-04 <br /> Benzene 1/22/99 100 ND 91 2 ug/l 65 0-135 91 2 <br /> Toluene 100 ND 89 4 65 0-135 894 <br /> Ethylbenzene 100 ND 83 0 65 0-135 83 0 <br /> Xylenes(total) 300 ND 262 650-135 873 <br /> Surrogate a a,a-Trifluorotoluene 300 272 650-135 90 7 <br /> _Matrix Spike D_uuv 9010405-MSD1 P901256-04 <br /> Benzene 1/22/99 100 ND 996 ug/1 65 0-135 996 200 $81 <br /> Toluene 100 ND 976 65 0-135 976 200 877 <br /> Ethylbenzene 100 ND 904 65 0-135 904 20 0 854 <br /> Xylenes(total) 300 ND 285 650-135 950 200 845 <br /> Surrogate a a a-Trifluorotoluene 300 297 650-135 990 <br /> Batch 9010447 Date Prepared 1/25/99 Extraction Method EPA 5030 soils McOH <br /> Blank 9010447-BLKI <br /> Gasoline 1/25199 ND mg/kg 200 <br /> Benzene ND 0100 <br /> Toluene ND 0100 <br /> 0enzene ND 0 100 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> page 14 of 20 <br />