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r <br /> CALIFORNIA LABORATORY SERVICES <br /> 08/04/04 16 28 ' <br /> ENSR-Sacramento Project Former Unocal 2859, 1665 ffif*oeergert '&G0240 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-357-100 COC# 1,2,3 <br /> Sacramento,CA 95827-2508 Project Manager Ben I Heningburg r <br /> GasBTEX by GC PID/FID - Quality Control ' <br /> Reporting Spike Source - %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Lunt Notes r <br /> Batch CN05433- EPA 5030 Water GC <br /> Blank(CN05433-BLKI) Prepared&Analyzed 07/09/04 , <br /> Gasoline ND 50 pg/L <br /> Benzene ND 050 <br /> Toluene ND 050 ' <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 1 0 " <br /> Surrogate o-Chlorotoluene(BTEX) 205 200 102 65-135 <br /> Surrogate o-Chlorotoluene(Gas) 216 200 108 65-135 <br /> LCS(CN05433-BSI) Prepared&Analyzed 07/09/04 <br /> Benzene 208 050 pg/L 200 104 70-140 <br /> Toluene 234 050 200 117 70-140 <br /> Ethylbenzene 232 0 50 200 116 70-140 <br /> Xylenes(total) 657 10 600 110 70-140 <br /> T_Surrogate_o-Chlorotoluene TEX) _ _ 19 7 __ 200 _ 98.5 65-135 ' <br /> LCS Dup(CN05433-BSDI) T — T Prepared&Analyzed 07/09/04 — - T---- -- _ <br /> Benzene 223 050 pg/L 200 112 70-140 6 96 30 , <br /> Toluene 239 050 200 120 70-140 2 11 30 <br /> Ethylbenzene 23 7 050 200 118 70-140 2 13 30 <br /> Xylenes(total) 687 1 0 600 114 70-140 446 30 ' <br /> Surrogate o-Chlorotoluene(BTEX) 203 200 102 65-135 <br /> Batch CN05458- EPA 5030 Water GC r <br /> Blank(CN05458-BLK1) Prepared 07/12/04 Analyzed 07/13/04 <br /> Gasoline ND 50 pg/L ' <br /> 1 <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 r <br />