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1 <br /> ' CALIFORNIA LABORATORY SERVICES <br /> ' 11/30/04 13:17 <br /> ENSR-Sacramento Project: Former Unocal 0187,437 E&Mork6r9er0k!ZQ709 <br /> ' 10411 Old Placerville Rd.,Suite 210 Project Number; 06940-325-100 GOC 4: 1, 2, 3 <br /> Sacramento,CA 95827-2508 Project Manager: Ben Heningburg <br /> Gas/BTEX 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 CN09069-EPA 5030 Water GC <br /> Blank(CN09069-BLKI) Prepared&Analyzed: 11/19/04 <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 /> Surrogale:o-Chlorotoluene(BTEX) 21.3 20.0 106 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 18.8 20.0 94.0 65-135 <br /> LCS(CN09069-BSI) Prepared&Analyzed: 11/19/04 <br /> fdKline 454 50 pg/L 500 90.8 65-135 <br /> Wow o-Chlorotoluene(Gas) 20.1 20.0 100 65-135 <br /> LCS Dup(CN09069-BSDI) Prepared&Analyzed: 11/19/04 <br /> ' Gasoline 452 50 pg/L 500 90.4 65-135 0.442 30 <br /> Surrogate:o-Chlorotoluene(Gas) 20.0 1120.0 100 65-135 <br /> Matrix Spike(CN09069-MSI) Source: CNK0708-14 Prepared&Analyzed: 11/19/04 <br /> ' Gasoline 457 50 pg/L 500 ND 91.4 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 18.9 20.0 94.5 65-135 <br /> ' Matrix Spike Dup(CN09069-MSD1) Source: CNK0708-14 Prepared&Analyzed: 11/19/04 <br /> Gasoline 477 50 gg/L 500 ND 95.4 65-135 4.28 30 <br /> Surrogate.a-Chlorotoluene(Gas) 20.0 20,0 100 65-135 <br /> Batch CN09090- EPA 5030 Water GC <br /> Blank(CN09090-BLKI) Prepared&Analyzed: 11/22/04 <br /> ' Gasoline ND 50 pg/L <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 <br /> lithylbenzene ND 0.50 " <br /> Xylenes(total) ND 1.0 " <br /> 1 <br /> i <br /> CA DOHS FLAP Accreditatiorl/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.caiifornialab.com 916-638-7301 Fax: 916-638-4510 <br />