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i <br /> i <br /> i CALIFORNIA LABORATORY SERVICES <br /> I <br /> 11/23/0413 10 <br /> ENSR-Sacramento Project Former Unocal 5098,5400& F*oA.r d,3cc 9n 0683 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-120 COC# 40519 <br /> Sacramento,CA 95827-2508 Project Manager Ben I Hemngburg <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 CN09021 -EPA 5030 Sod GC <br /> Blank(CN09021-BLKI) Prepared&Analyzed 11/18/04 <br /> Gasoline ND 1000 µg/kg <br />! Benzene ND 5 0 " <br /> Toluene ND 5 0 <br /> Ethylbenzene ND 5 0 <br /> Xylenes(total) ND 10 " <br /> I Surrogate o-Chlorotoluene(BTEA) 102 I' 100 102 70-130 <br /> Surrogate o-Chlorotoluene(Gas) 931 100 931 70-130 <br /> LCS(CN09021-BS 1) Prepared&Analyzed 11/18/04 <br /> asohne 2400 1000 pg/kg 2500 960 65-135 <br /> f "1111rurrogate o-Chlorotoluene(Gas) 100 100 100 70-130 <br /> LCS Dup(CN09021-BSD1) Prepared&Analyzed 11/18/04 <br /> I Gasoline 2390 1000 pglkg 2500 95 6 65-135 0 418 30 <br /> Surrogate o-Chlorotoluene(Gas) 994 11100 994 70-130 <br /> Matrix Spike(CN09021-MSI) Source CNK0646-05 Prepared&Analyzed 11/18/04 <br /> Gasoline 1670 1000 pg/kg 2500 ND 668 63-124 <br /> Surrogate o-Chlorotoluene(Gas) 78 0 " 100 78 0 70-130 <br /> Matrix Spike Dup(CN09021-MSDI) Source CNK0646-05 Prepared&Analyzed 11/18/04 <br /> Gasoline 2260 1000 pg/kg 2500 ND 904 63-124 300 35 <br /> Surrogate o-Chlorotoluene(Gas) 942 100 942 70-130 <br /> I <br /> f <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www californialab corn 916-638-7301 Fax 916-638-4510 <br />