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CALIFORNIA LABORATORY SERVICES <br /> 07/21/05 12:05 <br /> APEX Envirotech Inc.-Gold River Project: Moore Petroleum CLS Work Order#: COG0529 <br /> 11244 Pyrites Way Project Number: ERA02.004 <br /> Gold River,CA 95670 Project Manager: Rich Johnson <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 C005432-EPA 5030 Water GC <br /> Blank(CO05432-BLKI) Prepared&Analyzed:07/18/05 <br /> Gasoline ND 50 µg/L <br /> + Benzene ND 0.50 " <br /> { Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 1.0 " <br /> a Surrogate:o-Chlorotoluene(BTEX) 19.5 10.0 97.5 65-135 <br /> } Surrogate:o-Chlorotoluene(Gas) 19.1 10.0 96.0 65-135 <br /> LCS(C005432-BSI) Prepared&Analyzed:07/18/05 <br /> Gasoline 336 50 At L 500 67.2 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 16.0 20.0 80.0 65-135 <br /> LCS Dup(CO05432-BSD1) Prepared&Analyzed:07/18/05 <br /> Gasoline 388 50 µg/L 500 77.6 65-135 14.4 30 <br /> Surrogate:o-Chlorotoluene(Gas) 19.9 10.0 99.5 65-135 <br /> Matrix Spike(0005432-MS1) Source: COG0510-06 Prepared&Analyzed:07/18/05 <br /> Gasoline 389 50 gg/L 500 ND 77.8 65-135 1 <br /> Surrogate:o-Chlorololuene(Gas) 19.4 10.0 97.0 65-135 <br /> Matrix Spike Dup(CO05432-MSD1) Source: COG0510-06 Prepared&Analyzed:07/18/05 <br /> Gasoline 371 50 }Lg/L 500 ND 74.2 65-135 4.74 30 <br /> Surrogate:o-Chlorololuene(Gas) 18.1 10.0 90.5 65-135 <br /> 1 s <br /> 3 <br /> f <br /> i <br /> t <br /> r <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 />