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1455 McDowell Blvd North,Ste D <br /> �+� * Sequoia Petaluma,CA 94954 <br /> (707)792-1865 <br /> Analytical wFAX(707) 42 <br /> ww sequotalalabs c coin <br /> Cambria Environmental Project Egmva 5-7d <br /> 270 Perkins St Project Number 440 West Charter Way,Stockton Reported <br /> Sonoma CA,95476 Project Manager Aubrey Cool 12/12/00 07 37 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M18020M - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Lamas RPD Limit Notes <br /> Batch 0110048-EPA 5030,soils McOH <br /> Blank(0 1 10048-BLK2) Prepared&Analyzed 11/10/00 <br /> Gasoline ND 500 mg/kg <br /> Benzene ND 0 250 " <br /> Toluene ND 0 250 " <br /> Ethylbenzene ND 0 250 <br /> Xylenes(total) ND 0 250 " <br /> Surrogate a a a-TrJtuorotoluene 18 6 " 300 953 65-135 <br /> Surrogate 4-Bromofluorobenzene 18 4 300 94 7 65-135 <br /> Blank(0 1 10048-BLK3) Prepared&Analyzed 11/14/00 <br /> Gasoline ND 500 mg/kg <br /> Benzene ND 0 250 " <br /> #ene ND 0 250 <br /> Ibenzene ND 0 250 <br /> Xylenes(total) ND 0 250 " <br /> Surrogate a a a-Trrfluorotoluene 28 9 300 963 65-135 <br /> Surrogate 4-Bromofluorobenzene 289 300 963 65-135 <br /> Blank(0110048-BLK4) Prepared&Analyzed 11/15/00 <br /> Gasoline ND 50 0 mg/kg <br /> Benzene ND 0 250 " <br /> Toluene ND 0 250 " <br /> Ethylbenzene ND 0 250 " <br /> Xylenes(total) ND 0 250 " <br /> Surrogate a a a-Trtfluorotoluene 290 300 96 7 65-135 <br /> Surrogate 4-Bromofluorobenzene 181 300 937 65-135 <br /> LCS(0110048-BS2) Prepared&Analyzed 11/10/00 <br /> Gasoline 966 50 0 mg/kg 100 966 65-135 <br /> Surrogate 4-Bromofluorobenzene 293 300 977 65-135 <br /> equoia Analytical-Petaltlma The results in this report apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced to its entirety <br /> Page 24 of 41 <br />