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CALIFORNIA LABORATORY SERVICES r <br /> 01/24/05 15 30 <br /> ENSR-Sacramento Project Former Unocal 5098,5606 c r�ceOro�"WI'COA0535 <br /> 10411 Old Placerville Rd, Suite 210 Project Number 06940-293-100 COC# 41188 <br /> Sacramento,CA 95827-2508 - - - Project Manager -Ben I Hemngburg - -- <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> __ _Reporttng -_-_ <br /> Spike , -Source_ __ P- <br /> Analyte Result Linut Units Level Result %REC Limits RPD Limit Notes <br /> Batch C000438-EPA 5030 Water MS <br /> Blank(C000438-BLKI) Prepared&Analyzed 01/18/05 <br /> 1,3,5-Tnmethylbenzene ND 050 µg/L <br /> Vinyl chloride ND 10 " <br /> Xylenes(total) ND 10 " <br /> Surrogate 1 2-Dichloroethane-d4 116 100 116 66-1.35 <br /> Surrogate Toluene-d8 999 100 999 72-125 <br /> Surrogate 4-BromoJluorobenzene 109 100 109 73-125 <br /> LCS(C000438-BSI) Prepared&Analyzed 01/18/05 <br /> Benzene 190 050 lig/L 200 95 0 60-135 <br /> Chlorobenzene 210 0 50 200 105 60-133 <br /> 1,1-Dichloroethene 198 050 200 990 42-150 <br /> Toluene 190 0 50 200 950 60-137 <br /> Tnchloroethene 19 7 0 50 200 98 5 62-140 <br /> Surrogate 12-Dichloroethane-d4 9 79 100 979 66-1.35 <br /> Surrogate Toluene-d8 _ _ 102 ]Go 101 72-125 <br /> Surrogate 4-Bromofluorobenzene 11 1 100 111 73-125 <br /> LCS Dup(C000438-BSD1) - ­ Prepared&-Analyzed 01/18/05--- — - -- - - - -- <br /> Benzene 194 050 gg/L 200 970 60-135 208 25 <br /> Chlorobenzene 21 0 0 50 200 105 60-133 000 25 <br /> I,1-Dichloroethene 202 050 200 101 42-150 200 25 <br /> Toluene 191 050 200 95 5 60-137 0 525 25 <br /> Trichloroethene 205 0 50 20 0 102 62-140 398 25 <br /> Surrogate 12-Dichloroethane-d4 114 100 114 66-135 <br /> Surrogate Toluene-d8 102 100 102 72-125 <br /> Surrogate 4-Bromofluorobenzene 108 100 108 73-125 <br /> r <br /> s <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californtalab com 916-638-7301 Fax 916-638-4510 <br />