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1455 McDowell Blvd North, Ste D <br /> Sequoia Petaluma CA 94954 <br /> 4 (707) 792-1865 <br /> Analytical FAX(707) 792-0342 <br /> Cambria Environmental Project Shell Oil Co Sampled 9/29199 <br /> 270 Perkins St Project Number 440 Charter Stockton Received 9129199 <br /> Sonoma, CA 95476 Project Manager Tom Magney Reported 10/11/99 <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 Analvzed Lege! Result Result Units Recol, Limas % Limit °% Notcs* <br /> Matrix SpikeD_up 9100007-MSD2 P909665-01 <br /> Benzene 10/1199 200 ND 244 ug/kg 65 0-135 122 200 480 <br /> Toluene 200 ND 224 65 0-135 112 200 437 <br /> Ethylbenzene 200 ND 201 65 0-135 101 200 1 96 <br /> Xylenes(total) 600 ND 645 _ 65 0-135 108 200 0 <br /> Surrogate a a a-Trrfluorotoluene 600 719 650-135 120 <br /> Sequoia Analytical - Petaluma *Refer to end of repor l for tett of notes and dcf lultom <br /> Pagl 7 of 1 1 <br />