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CALIFORNIA LABORATORY SERVICES <br />Page 7 of 10 11/07/07 12:29 <br />Weidmann-ACTT Inc. Project: PGEEI <br />4011 Power Inn Road Project Number. 193491 CLS Work Order #: CQK0093 <br />Sacramento, CA 95826 Project Manager. Jawied Anwar COC #: <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 CQ09152 - EPA 3050B <br />LCS (CQ09152-BSI) <br />11/06/07 <br />Prepared & Analyzed: 11/06/07 <br />Lead <br />22.5 <br />2.5 <br />mglkg 25.0 89.9 75-125 <br />Molybdenum <br />23.8 <br />1.0 <br />25.0 95.2 75-125 <br />Nickel <br />22.3 <br />1.0 <br />25.0 89.2 75-125 <br />Vanadium <br />22.7 <br />1.0 <br />25.0 90.6 75-125 <br />Zinc <br />22.2 <br />1.0 <br />25.0 88.9 75-125 <br />LCS Dup (CQ09152-BSDI) <br />Prepared & Analyzed: <br />11/06/07 <br />Antimony <br />24.2 <br />2.5 <br />mg/kg <br />25.0 <br />96.6 <br />75-125 <br />3.65 <br />25 <br />Barium <br />97.6 <br />LO <br />100 <br />97.6 <br />75-125 <br />3.65 <br />25 <br />Beryllium <br />2.36 <br />0.50 <br />2.50 <br />94.6 <br />75-125 <br />3.97 <br />25 <br />Cadmium <br />2.38 <br />0.50 <br />2.50 <br />95.4 <br />75-125 <br />5.38 <br />25 <br />Cobalt <br />24.1 <br />LO <br />25.0 <br />96.3 <br />75-125 <br />5.42 <br />25 <br />Chromium <br />9.58 <br />1.0 <br />10.0 <br />95.8 <br />75-125 <br />4.48 <br />25 <br />Copper <br />I1.9 <br />1.0 <br />12.5 <br />95.4 <br />75-125 <br />3.28 <br />25 <br />Lead <br />23.4 <br />2.5 <br />25.0 <br />93.5 <br />75-125 <br />3.86 <br />25 <br />Molybdenum <br />24.9 <br />1:0 <br />25.0 <br />99.5 <br />75-125 <br />4.33 <br />25 <br />Nickel <br />23.5 <br />1.0 <br />25.0. <br />94.0 <br />75-125 <br />5.20 <br />25 <br />Vanadium <br />23.8 <br />LO <br />25.0 <br />95.1 <br />75-125 <br />4.80 <br />25 <br />Zinc <br />23.1 <br />1.0 <br />25.0 <br />92.5 <br />75-125 <br />4.01 <br />25 <br />Matrix Spike (CQ09152-MSI) <br />Source: CQK0083-01 <br />Prepared & Analyzed: <br />11/06/07 <br />Antimony <br />8.70 <br />2.5 <br />mg/kg <br />25.0 <br />ND <br />34.8 <br />75-125 <br />QM -5 <br />Barium <br />219 <br />LO <br />100 <br />80.1 <br />139 <br />75-125 <br />QM -5 <br />Beryllium <br />2.64 <br />0.50 <br />2.50 <br />0.247 <br />95.7 <br />75-125 <br />Cadmium <br />2.50 <br />0.50 <br />2.50 <br />0.350 <br />86.0 <br />75-125 <br />Cobalt <br />33.7 <br />1.0 <br />" <br />25.0 <br />9.48 <br />97.1 <br />75-125 <br />Chromium <br />45.1 <br />1.0 <br />10.0 <br />29.4 <br />157 <br />75425 <br />QM -5 <br />Copper <br />32.7 <br />1.0 <br />125 <br />16.7 <br />128 <br />75-125 <br />QM -5 <br />Lead <br />37.7 <br />2.5 <br />25.0 <br />9.04 <br />115 <br />75-125 <br />Molybdenum <br />22.5 <br />1.0 <br />25.0 <br />0.565 <br />87.6 <br />75-125 <br />Nickel <br />55.8 <br />1.0 <br />25.0 <br />33.1 <br />91.1 <br />75-125 <br />Vanadium <br />66.0 <br />1.0 <br />25.0 <br />32.3 <br />135 <br />75-125 <br />QM -5 <br />CA DOHS ELAP Accreditation/Registration Number 1233 <br />3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />