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l� <br /> CALIFORNIA LABORATORY SERVICES r <br /> AD <br /> 11/12/04 15 02 ' <br /> ENSR-Sacramento Project Stockton Scavenger Co CLS Work Order# CNK0293 <br /> 10411 Old Placerville Rd, Suite 210 Project Number 05027-031-100 ' <br /> Sacramento CA,95927-2508 Project Manager Mark Naugle COC# <br /> _ GasBTEX by GC PID/FID - Quality Control <br /> Reporting Spike Source - - %REC RPD <br /> Analyte Result Limit Units Level Result %ITEC Limits RPD Limit Notes <br /> Batch CN08736-EPA 5030 Water GC <br /> Matrix Spike Dup(CN08736-MSDI) Source CNK0251-06 Prepared&Analyzed 11/09/04 <br /> Benzene 200 0 50 µg/L 200 ND 100 60-140 131 30 <br /> Toluene 21 3 0 50 200 ND 106 60-140 4 14 30 <br /> Ethylbenzene 21 5 0 50 200 ND 108 60-140 0 926 30 <br /> Xylenes(total) 631 10 600 ND 105 60-140 1 57 30 <br /> Surrogale o-Chlorotoluene(BTEX) -19 6 _ 20 0` _ 98 0 - 65-135 <br /> Batch CN08812-EPA 5030 Water GC ' <br /> Blank(CN08812-BLKI) Prepared&Analyzed 11/10/04 <br /> Gasoline ND 50 µg/L <br /> Benzene ND 0 50 <br /> Toluene ND 0 50 <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 10 " <br /> Surrogate o-Chlorotoluene(BTEX) _- 205 - - " 200 102 65-135 <br /> Surrogate o-CHH-rotoluene(Gas) -192 - _ —= 200- ----96 0-Y =--65-135- <br /> LCS(CN08812-BS1) Prepared&Analyzed 11/10/04 <br /> Benzene - 200 - _-_=0 50 µglL 20 0 100 70-140 <br /> Toluene 197 050 200 985 70-140 <br /> Ethylbenzene 192 050 200 960 70-140 <br /> Xylenes(total) 564 10 600 940 70-140 ' <br /> Surrogate o-Chlorotoluene(BTEA) 204 200 102 65-135 <br /> LCS Dup_(CN08812-BSDI) Prepared&Analyzed 11/10/04 <br /> Benzene 21 0 050 gg/L 200 105 70-140 4 88 30 <br /> Toluene 21 6 050 200 108 70-140 920 30 <br /> Ethylbenzene 21 5 050 200 108 70-140 11 3 30 <br /> Xylenes(total) 646 1 0 600 107 70-140 126 30 ' <br /> Surrogate o-Chlorotoluene(BTEX) 200 200 100 65-135 <br /> 1 <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 />