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CALIFORNIA LABORATORY SERVICES ' <br /> 04/20/04 13 56 , <br /> ENSR-Sacramento Project Former Unocal 2859, 1665 CLc#W rykedr�e�Ra 269 <br /> 10411 Old Placerville Rd, Suite 210 n ' Protect Number 06940-357-100' _ COC# 1,2,3 <br /> Sacramento,CA 95827-2508 Project Manager Ben 1 Heningburg <br /> Gas/BTEX by GC PID/FID - Quality Control <br /> - - � - Reporting , - ` - Spike Source = ' %REC a --RPD - <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes , <br /> Batch CN02971 - EPA 5030 Water GC <br /> Matrix Spike(CN02971-MSI) Source CND0269-04 Prepared&Analyzed 04/13/04 ?� <br /> Benzene 23 1 050 gg/L 200 ND 116 60-140 <br /> Toluene 22 5 0 50 200 ND 112 60-140 <br /> Ethylbenzene 229 050 20 0 ND 114 60-140 <br /> Xylenes(total) 673 10 600 1 1 110 60-140 ' <br /> Surrogate o-Chforotoluene(BTEX) 19 9 200 995 65-135 <br /> Matrix Spike Dup(CN02971-MSD1) Source CND0269-04 Prepared&Analyzed 04/13/04 ' <br /> Benzene 239 0 50 gg/L 200 ND 120 60-140 340 30 <br /> Toluene 222 050 200 ND 111 60-140 1 34 30 <br /> Ethylbenzene 226 050 "�' 200 - ND - 11`3 60-140 1 32 30 <br /> Xylenes(total) 695 10 600 1 1 114 60-140 322 30 <br /> Surrogate o-Chlorololuene(BTEX) 19 5 200 975 65-135 <br /> Batch CN03002-EPA 5030 Water GC <br /> Blank(CN03002-BLK1) Prepared&Analyzed 04/13/04 - <br /> Gasoline ND 50 pg/L <br />--Benzene _ —ND —0 50--s-" ----- - �' <br /> Toluene ND 050 " <br />- -- Ethylbenzene = =rx=-_ _ T- ND;= _�-, 050 <br /> Xylenes(total) ND 10 ' <br /> Surrogate o-Chlorotoluene(Gas) 197 200 985 65-135 <br /> LCS(CN03002-BSI) Prepared&Analyzed 04/13/04 <br /> Gasoline 469 50 gg/L 500 93 8 65-135 , <br /> Surrogate o-Chlorotoluene(Gas) 189 200 945 65-135 <br /> f' <br /> 1 <br /> • <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova CA 95742 www cahfornlalab com 916-638-7341 Fax 916-638-4510 <br />