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CALIFORNIA LABORATORY SERVICES <br /> 08/24/04 17:10 <br /> APEX Envirotech Inc.-Gold River Project: Moore Petroleum <br /> 11244 Pyrites Way Project Number: ERA02.004 CLS Work Order#:CNH0705 <br /> Gold River,CA 95670 Project Manager: Rich Johnson COC#: <br /> GasBTEX by GC PID/FID -Quality Control <br /> Reporting Spike Source %REC RPD <br /> 'Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CN06526-EPA 5030 Water CC <br /> BlankCN06526-BLKl <br /> i <br /> ( ) Prepared&Analyzed:08/23!04 <br /> Gasoline ND 50 gg/L <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 <br /> Xylenes(total) ND 1.0 <br /> Surrogate:o-Chlorololuene(BTEV 19.7 10.0 98.5 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 11.9 10.0 110 65-135 <br /> LCS(CN06526-BSl) Prepared&Analyzed:08/23/04 4 <br /> Gasoline 556 50 pg/L 500 Ill 65-135 <br /> `f Surrogate:o-Chlorotoluene(Gas) 12.7 10.0 114 65-13S $ <br /> LCS Dup(CN06526-BSD1) Prepared&Analyzed:08/23/04 <br /> Gasoline 559 50 gg1L 500 112 65-135 0.539 30 <br /> Surrogate:o-Chlorotoluene(Gas) 21.3 20.0 112 65-135 <br /> Matrix Spike(CN06526-MSI) Source:CNHO705-01 Prepared&Analyzed:08/23/04 <br /> Gasoline 476 50 ug/L 500 ND 95.2 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 12.5 1110.0 111 65-135 <br /> Matrix Spike Du (CN06526-MSD1) Source:CNH0705-01 Prepared&Analyzed:08/23/04 <br /> Gasoline 467 50 µg/L 500 ND 93.4 65-135 1.91 30 <br /> Surrogate:o-Chlorotoluene(Gas) 22.2 20.0 111 65-135 <br /> N <br /> I' <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />