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O <br /> CALIFORNIA LABORATORY-SERVICES <br /> e <br /> y - - 04/25/051129 <br /> ENSR-Sacramento Project Former Unocal 5098,5606WkoArvke6rodkrT'E'6D0543 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC# 1,2,3,4 <br /> Sacramento,CA 95827-2508 Project Manager Margret Riggin <br /> TPH-Gasoline by GC FID - Quality Control ' <br /> — - Reporting '4---Spike`Source— w.-- %REC —�-RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch C002969-EPA 5030 Water GC <br /> Blank(CO02969-BLK1) Prepared 04/18/05 Analyzed 04/20/05 ' <br /> Gasoline ND 50 µg/L <br /> Surrogate o-Chlorotoluene(Gas) 186 200 930 65-135 <br /> LCS(CO02969-BS1) Prepared 04/18/05 Analyzed 04/20/05 <br /> Gasoline 451 50 µg/L X500 902 65-135 <br /> Surrogate o-Chlorotoluene(Gas) 220 "4 200 _ 110 65-135 <br /> LCS Dup(CO02969-BSD1) Prepared 04/18/05 Analyzed 04/20/05 <br /> Gasoline 470 50 '_ pg/L 500 - 940 65-135 4 13 30 <br /> Surrogate o-Chlorotoluene(Gas) 222 11 200 111 65-135 <br /> Matrix Spike(CO02969-MSI) Source COD0543-23 Prepared 04/18/05 Analyzed 04/20/05 l <br /> Gasoline 437 50 pg/L 500 ND 874 68-132 <br /> Surrogate o-Chlorotoluene(Gas) 216 " 200 108 65-135 <br /> Matrix Spike Dup(CO02969-MSD1) Source COD0543-23 Prepared 04/18/05 Analyzed-04/20/05 <br />——Gasoline 442 - 50 pg/L. 500 ND 884 68-132 1 14 32 <br /> Surrogate o-Chlorotoluene(Gas) 216 200 108 65-135 <br /> Batch C002970-EPA 5030 Water GC <br /> Blank(CO02970-BLKI) Prepared&Analyzed 04/18/05 C <br /> Gasoline - ND 50 pg/L - <br /> Surrogate o-Chlorotoluene(Gas) 209 200 104 65-135 <br /> LCS(CO02970-BSI) Prepared&Analyzed 04/18/05 <br /> Gasoline a 425 50 pg/L 500 850 65-135 <br /> Surrogate o-Chlorotoluene(Gas) 236 200 118 65-135 ' <br /> S t <br /> i <br /> 1 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californislab.com 916-638-7301 Fax: 916-638-4510 ' <br />