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I - <br />' CALIFORNIA LABORATORY SERVICES <br />' 11/05/04 15 09 <br /> ENSR-Sacramento Project Former Unocal 5098, 5606 ` lark&09, T'�J0883 <br />' 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC# None <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 °/aREC Limits RPD Limit Notes <br /> Batch CN08303-EPA 3010A <br />' Matrix Spike(CN08303-MSI) Source CNJ0876-01 Prepared&Analyzed 10/26/04 <br /> Cobalt 504 20 pg/L 500 ND 101 75-125 <br /> Chromium 204 20 200 ND 102 75-125 <br /> Copper 253 20 250 69 985 75-125 <br />' Molybdenum 518 20 500 73 102 75-125 <br /> Nickel 511 20 500 ND 102 75-125 <br /> Silver 659 10 500 78 116 75-125 <br /> Vanadium 503 20 500 ND 101 75-125 <br /> Zinc 496 20 500 13 966 75-125 <br /> Matrix Spike Du (CN08303-MSDI) Source CNJ0876-01 Prepared&Analyzed 10/26/04 <br />' ony 490 50 pglL 500 ND 980 75-125 242 25 <br /> um 1940 20 2000 16 969 75-125 204 25 <br /> Beryllium 485 50 500 ND 970 75-125 264 25 <br />' Cadmium 537 10 1 500 ND 107 75-125 1 48 25 <br /> Cobalt 490 20 500 ND 980 75-125 282 25 <br /> Chromium 201 20 200 ND 100 75-125 148 25 <br />' Copper 246 20 11 250 68 957 75-125 281 25 <br /> Molybdenum 505 20 500 73 995 75-125 254 25 <br /> Nickel 489 20 500 ND 978 75-125 440 25 <br /> Silver 680 10 500 78 120 75-125 3 14 25 <br />' Vanadium 490 20 500 ND 980 75-125 262 25 <br /> Zinc 488 20 500 13 950 75-125 1 63 25 <br /> I <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 13249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab com 916-638-7301 Fax. 916-638-4510 <br />