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e ®1 a 1455 McDowell Blvd. North, Ste. D <br />Petaluma, CA 94954 <br />41)(707)792-1865 <br />FAX (707) 792-0342 <br />TQF Analytical www.sequoialabs.com <br />Cambria Environmental Project: Equiva <br />270 Perkins St. Project Number. 880 Victor Rd., Lodi, CA Reported: <br />Sonoma CA, 95476 Project Manager: Aubrey Cool 12/12/0011:01 <br />Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015NU8020M - Quality Control <br />Sequoia Analytical - Petaluma <br />Reporting Spike Source °/uREC RPD <br />Analyte Result Limit Units Level Result 146REC Limits RPD limit Notes <br />Batch 0110649 - EPA 5030, soils <br />Blank (0110649-BLKl) <br />Prepared & Analyzed: 11/28/00 <br />Gasoline <br />ND <br />1.00 mg/kg <br />Benzene <br />ND <br />0.00500 " <br />Toluene <br />ND <br />0.00500 " <br />Ethylbenzene <br />ND <br />0.00500 " <br />Xylenes (total) <br />ND <br />0.00500 " <br />Surrogate: a,a,a-Trifluorotoluene 0.557 0.600 92.8 65-135 <br />Surrogate:4-Bromofluorobenzene 0.545 0.600 90.8 65-135 <br />Blank (0110649-BLK2) <br />Prepared & Analyzed: 11/29/00 <br />Gasoline <br />ND <br />1.00 mg/kg <br />Benzene <br />ND <br />0.00500 " <br />Toluene <br />ND <br />0.00500 " <br />Ethylbenzene <br />ND <br />0.00500 " <br />Xylenes (total) <br />ND <br />0.00500 " <br />Surrogate: a,a,a-Trifluorotoluene 0.601 0.600 100 65-135 <br />Surrogate. 4-Bromofluorobenzene 0.607 0.600 101 65-135 <br />Blank (0110649-BLK3) <br />Prepared: 11/28/00 Analyzed: 12/01/00 <br />Gasoline <br />ND <br />1.00 mg/kg <br />Benzene <br />ND <br />0.00500 " <br />Toluene <br />ND <br />0.00500 " <br />Ethylbenzene <br />ND <br />0.00500 " <br />Xylenes (total) <br />ND <br />0.00500 " <br />Surrogate. a,a,a-Tris luorotoluene 0.613 0.600 102 65-135 <br />Surrogate. 4-Bromofluorobenzene 0.619 0.600 103 . 65-135 <br />Blank (0110649-BLK4) <br />Prepared & Analyzed: 12/04/00 <br />Gasoline <br />ND <br />1.00 mg/kg <br />Benzene <br />ND <br />0.00500 " <br />Toluene <br />ND <br />0.00500 " <br />Ethylbenzene <br />ND <br />0.00500 " <br />Xylenes (total) <br />ND <br />0.00500 ^ <br />Surrogate. a,a,a-Trifluorotoluene 0.574 0.600 95.7 65-135 <br />Surrogate:4-Bromofluorobenzene 0.600 0.600 100 65-135 <br />Sequoia Analytical - Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. <br />Page 9 of 19 <br />