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CALIFORNIA LABORATORY SERVICES <br /> 09/22/04 10 07 <br /> tCNSR-Sacramento Project Former Unocal 5098,5400 ftc9-"1r9& ,W"R10426 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-130 COC# 41209 <br /> Sacramento,CA 95827-2508 Project Manager Ben I Heningburg <br /> CAM 17 Metals -Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />' Batch CN07257-EPA 3050B <br /> Matrix Spike(CN07257-MSI) Source CNI0605-01 Prepared&Analyzed 09/20/04 <br /> Lead 31 4 25 mg/kg 250 ND 126 75-125 QM-05 <br /> i <br /> Molybdenum 216 10 250 ND 964 75-125 <br /> Nickel 654 10 250 40 102 75-125 <br /> Silver 985 50 250 49 198 75-125 QM-05 <br /> Vanadium 522 10 250 26 105 75-125 <br /> Zinc 596 to 250 34 102 75-125 <br /> _Matnz Spike Dup(CN07257-MSD1) Source CN10605-01 Prepared&Analyzed 09/20/04 <br /> Antimony ND 25 mg/kg 250 ND 75-125 30 QM-05 <br /> Barium 676 10, " 100 520 156 75-125 0148 30 QM-05 <br /> Beryllium 258 50 250 ND 103 75-125 000 30 <br /> Cadmium 275 5 0 250 16 460 75-125 115 30 QM-05 <br /> Cobalt 307 10 250 88 876 75-125 l 64 30 <br /> Chromium 416 10 100 25 166 75-125 931 30 QM-05 <br /> Copper 279 10 125 17 872 75-125 421 30 <br /> Lead 28 0 25 250 ND 112 75 125 l 1 4 30 <br /> Molybdenum 214 10 250 ND 856 75 125 0 930 30 <br /> Nickel 67 0 10 250 40 108 75 125 242 30 <br /> Silver 985 50 250 49 198 75 125 000 30 QM-05 <br />' Vanadium 578 10 I' 250 26 127 75 125 102 30 QM-05 <br /> Linc 59 1 10 25 0 34 100 75 125 0 842 30 <br /> lip— <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 F10gerald Road Rancho Cordova,CA 95742 www californialab com 916-638-7301 Fax: 916-638-4510 <br />