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_ 1 <br /> CALIFORNIA LABORATORY SERVICES <br /> 10/08/04 09 43 ' <br /> ENSR-Sacramento Project Former Unocal 5098,5606 WMX A ke�tr�re o ' 1Q914 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC# None <br /> Sacramento,CA 95827-2508 Project Manager Ben Henmgburg <br /> GasBTEX by GC PID/FM - Quality Control ' <br /> Reporting Spike Source %REC RPD ' <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CN07608-EPA 5030 Water GC <br /> Blank(CN07608-BLK1) Prepared&Analyzed 09/30/04 <br /> Gasoline ND 50 pg/L <br /> Benzene ND 0 50 " <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 10 " <br /> Surrogate o-Chlorotoluene(BTEX) 202 200 101 65-135 <br /> Surrogate o-Chlorotol ene(Gas) 201 200 100 65-135 <br /> LCS(CN07608-BSI) Prepared&Analyzed 09/30/04 <br /> Gasoline 485 50 pg1L 500 970 65-135 <br /> Surrogate o-Chlorotoluene(Gas) 258 200 129 65-135 <br /> LCS Dup(CN07608-BSDI) Prepared&Analyzed 09/30/04 <br /> Gasoline 509 S0 pg1L 500 102 65-135 483 30 <br /> Surrogate o-Chlorotoluene(Gas) 213 " 200 106 65-135 <br /> Matrix Spike(CN07608-MSI) Source CN10931-07 Prepared&Analyzed 09/30/04 <br /> — - Gasoline-- -- __---- _- -427-----50--pg/1,--- 500- ND--854=65-135 ---- <br /> Surrogate <br /> —Surrogate o-Chlorotoluene(Gas) 197 200 985 65-135 <br /> Matrix Spike Dup(CN07608-MSD1) Source CNIO931-07 Prepared&Analyzed 09/30/04 <br /> Gasoline 465 50 pg/L 500 ND 93 0 65-135 8 52 30 <br /> _Surrogate o-Chlorotoluene(Gas)-_ 263 -- - 200- - - 132---65-135 - - <br /> Batch CN07610-EPA 5030 Water GC ' <br /> Blank(CN07610-BLKI) Prepared&Analyzed 09/30/04 <br /> Gasoline ND 50 gg/L <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND <br /> CA DOHS FLAP Accreditation/Registration Number I233 ' <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www callfornialab com 916-638-7301 Fax 916-638-4510 ' <br />