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09/07/04 13:29 <br /> ENSR-Sacramento Project: Former Unocal 5098,5606 Pacific Ave.Stockton,CA <br /> 10411 Old Placerville Rd.,Suite 210 Project Number. 06940-293-100 CLS Work Order#:CNHO981 <br /> Sacramento,CA 95827-2508 Project Manager: Ben I.Heningburg COC#:41207 <br /> DRAFT: Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Reporting Spike Source °/.REC RPD <br /> Analyte Result Limit Units Level Result 0/.RFC Limits RPD Limit Notes <br /> Batch CN06839-EPA 5030 Water MS <br /> LCS Dup(CN06839-BSDI) Prepared&Analyzed:09/03/04 <br /> Benzene 18.0 0.50 pg/L 20.0 90.0 60-135 3.97 25 <br /> Chlorobenzene 17.6 0.50 20.0 88.0 60-133 1.14 25 <br /> IJ-Dichloroethene 24.2 0.50 20.0 121 42-150 2.51 25 <br /> Toluene 19.1 0.50 20.0 95.5 60-137 4.28 25 <br /> Trichloroethene 18.5 0.50 20.0 92.5 62-140 3.30 25 <br /> Surrogate:1,2-Dichloroethaned4 11.6 10.0 116 66-135 <br /> Surrogate:Toluene-d8 10.4 10.0 104 71-125 <br /> Surrogate:4-BromoJluorobenzene 10.4 10.0 104 73-115 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br />