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Sequoia 1455 McDowell P Bald North,Ste 4 <br /> Petaluma CA 94954 <br /> ID <br /> (707)792-1865 <br /> 342 <br /> 11WO Analytical FAX{-quo 79bs com <br /> www sequoiala6s cam <br /> 0 <br /> Cambria Environmental Project Equiva Sampled 3/30/00 <br /> 270 Perkins St Project Number 620 W Charter,Stockton Received 3/31/00 <br /> Sonoma,CA 95476 Project Manager Aubrey-Cool Reported 4/14/00 <br /> BTEX by 8020M/Quality Control <br /> - — --- --- ScFq dia AnalytleamFetalurn-d <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Linut % Nates• <br /> Batch 0040160 Date Prepared 4/8/00 Extraction Method EPA 5030 soils <br /> Blank 0040160-BLKI <br /> Benzene 4/8/00 ND mg/kg 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xylenes(total) ND 000500 <br /> Methyl tert-butyl ether ND 00500 <br /> Surrogate a a,a-Triuorotoluene to0 600 0 645 of 650-135 107 <br /> Blank 0040160-BLK2 <br /> Benzene 4/9/00 ND mg/kg 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND of 000500 <br /> Xylenes(total) ND to 000500 <br /> Methyl tcrt-butyl ether ND 11 00500 <br /> Surrogate a a a-Trifluorotoluene 0 600 0 614 to 650-135 102 <br /> LCS 0040160-BSI <br /> Benzene 4/8/00 0200 0 198 mg/kg 650-135 990 <br /> Toluene 0200 0 193 650-135 965 <br /> Ethylbenzene 0-200 0-186" 650-135 93 0 <br /> Xylenes(total) 0 600 0 593 to 650-135 988 <br /> Methyl tert-butyl ether 0200 0 178 go 650-135 890 <br /> Surrogate a,a a-Triuorotoluene 0 600 0 611 of 650-135 102 <br /> LCS 0040160-BS2 <br /> Benzene 4/9/00 0200 0 199 mg/kg 650-135 995 <br /> Toluene 0200 0 194 01 650-135 970 <br /> Ethylbenzene 0200 0 188 1. 650-135 940 <br /> Xylenes(total) 0 600 0 597 to 650-135 995 <br /> Methyl tcrt-butyl ether 0200 0 182 1. 650-135 910 <br /> Surrogate a,a,a-Trifluorotoluene 0 600 0 629 to 650-135 105 <br /> Matrix Spike 0040160-MS1 P003771-05 <br /> Benzene 4/8/00 0200 ND 0 197 mg/kg 650-135 985 <br /> Toluene 0200 ND 0 196 650-135 980 <br /> Ethylbenzene 0200 ND 0 187 650-135 935 <br /> Xylenes(total) 0 600 000572 0 599 650-135 989 <br /> Methyl tert-butyl ether 0200 00945 0 311 650-135 108 <br /> Surrogate a,a a-Triuoratoluene 0 600 0 611 650-135 102 <br /> Sequoia Analytical-Petaluma - <br /> 9 yt Refer to end of report for text of notes and definitions <br /> Page 7 of 1 I <br />