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CALIFORNIA LABORATORY SERVICES <br />Page 7 of 10 11/07/07 12:29 <br />Weidmann-ACTI Inc. Project: PGEEI <br />4011 Power Inn Road Project Number: 193491 CLS Work Order #: CQK0083 <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 />Prepared & Analyzed: 11/06/07 <br />Lead <br />22.5 <br />2.5 <br />mg/kg <br />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: 11/06/07 <br />Antimony <br />24.2 <br />2.5 <br />mg/kg <br />25.0 96.6 75-125 <br />3.65 <br />25 <br />Barium <br />97.6 <br />1.0 <br />too 97.6 75-125 <br />3.65 <br />25 <br />Beryllium <br />2.36 <br />0.50 <br />2.50 94.6 75-125 <br />3.97 <br />25 <br />Cadmium <br />2.38 <br />0.50 <br />2.50 95.4 75-125 <br />5.38 <br />25 <br />Cobalt <br />24.1 <br />1.0 <br />25.0 96.3 75-125 <br />5.42 <br />25 <br />Chromium <br />9.58 <br />1.0 <br />10.0 95.8 75-125 <br />4.48 <br />25 <br />Copper <br />11.9 <br />1.0 <br />12.5 95.4 75-125 <br />3.28 <br />25 <br />Lead <br />23.4 <br />2.5 <br />25.0 93.5 75-125 <br />3.86 <br />25 <br />Molybdenum <br />24.9 <br />1.0 <br />25.0 99.5 75-125 <br />4.33 <br />25 <br />Nickel <br />23.5 <br />1.0 <br />25.0 94.0 75-125 <br />5.20 <br />25 <br />Vanadium <br />23.8 <br />1.0 <br />25.0 95.1 75-125 <br />4.80 <br />25 <br />Zinc <br />23.1 <br />1.0 <br />25.0 92.5 75-125 <br />4.01 <br />25 <br />Matrix Spike (CQ09152-MS1) <br />Source: CQK0083-01 <br />Prepared & Analyzed: 11/06/07 <br />Antimony <br />8.70 <br />2.5 <br />mg/kg <br />25.0 ND 34.8 75-125 <br />QM -5 <br />Barium <br />219 <br />1.0 <br />100 80.1 139 75-125 <br />QM -5 <br />Beryllium <br />2.64 <br />0.50 <br />2.50 0.247 95.7 75-125 <br />Cadmium <br />2.50 <br />0.50 <br />2.50 0.350 86.0 75-125 <br />Cobalt <br />33.7 <br />1.0 <br />25.0 9.48 97.1 75-125 <br />Chromium <br />45.1 <br />1.0 <br />10.0 29.4 157 75-125 <br />QM -5 <br />Copper <br />32.7 <br />1.0 <br />12.5 16.7 128 75-125 <br />QM -5 <br />Lead <br />37.7 <br />2.5 <br />25.0 9.04 115 75-125 <br />Molybdenum <br />22.5 <br />1.0 <br />25.0 0.565 87.6 75-125 <br />Nickel <br />55.8 <br />1.0 <br />25.0 33.1 91.1 75-125 <br />Vanadium <br />66.0 <br />1.0 <br />25.0 32.3 135 75-125 <br />QM -5 <br />CA DOHS ELAP Accreditation/Registration Number 1233 <br />3249 Fitzgerald Road Rancho Cordova, CA 95742 www.caUfornialab.com 916-638-7301 Fax: 916-6384510 <br />