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. CALIFORNIA LABORATORY SERVICES <br /> 09/29/04 13 30 <br />' ENSR-Sacramento Project Former Unocal 5098,5606 c V.v y�to kto <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC 4 080er I0746 <br /> Sacramento,CA 95827-2508 Project Manager Ben 1 Heningburg COC# 41080 <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 CN07370-EPA 3010A <br />' LCS Dup(CN07370-BSD1) Prepared 09/23/04 Analyzed 09/27/04 <br /> Cobalt 514 20 µ&/L 500 103 80-120 135 20 <br /> Chromium 214 20 200 107 80-120 185 20 <br /> Copper 244 20 250 976 80-120 0 816 20 <br /> Molybdenum 501 20 500 100 80-120 139 20 <br /> Nickel 515 20 " 500 103 80-120 154 20 <br /> Silver 544 10 500 109 80-120 394 20 <br />' Vanadium 520 20 500 104 80-120 115 20 <br /> Zinc 521 20 500 104 80-120 0 765 20 <br /> Matnx Spike(CN07370-MS1) Source CN10762-01 Prepared 09/23/04 Analyzed 09/27/04 <br /> Wartimony 443 50 pg/L 500 ND 886 75-125 <br /> ium 2130 20 2000 270 930 75-125 <br /> Beryllium 483 50 Soo ND 966 75-125 <br /> Cadmium 417 10 „ 500 ND 834 75-125 <br /> Cobalt 470 20 500 ND 940 75-125 <br /> Chromium 211 20 200 11 100 75-125 <br /> Copper 284 20 250 47 948 75-125 <br /> Molybdenum 485 20 500 19 932 75-125 <br /> Nickel 466 20 500 ND 932 75-125 <br /> Silver 544 10 Soo ND 109 75-125 <br /> Vanadium 491 20 n500 ND 982 75-125 <br /> Zinc 512 20 500 27 970 75-125 <br /> Matrix Spike Dup(CN07370-MSD1) Source CN10762-01 Prepared 09/23/04 Analyzed 09/27/04 <br /> Antimony 444 50 gg/L 500 ND 88 8 75-125 0 225 25 <br /> Barium 2130 20 2000 270 930 75-125 000 25 <br /> Beryllium 493 50 500 ND 966 75-125 000 25 <br /> Cadmium 401 10 500 Nil 802 75-125 391 25 <br /> Cobalt 473 20 500 ND 946 75-125 0 636 25 <br /> Chromium 215 20 200 11 102 75-125 188 25 <br /> Copper 284 20 250 47 948 75-125 000 25 <br /> Molvbdenum 486 20 500 19 934 75-125 0206 25 <br /> CA DOHS FLAP Accreditation/Registration Number 1233 <br /> I3249 Fitzgerald Road Rancho Cordova,CA 95742 www californialab coin 916-638-7301 Fax 916-638-4510 <br />