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CALIFORNIA LABORATORY SERVICES <br />Page 6 of 10 11/07t07 12:29 <br />Weidmann-ACTI Inc. Project: PGEEI <br />4011 Power Inn Road Project Number. 193491 CLS Work Order #: CQK0083 <br />Sacratnento, 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 C009151- EPA 3050B <br />Matrix Spike (CQ09151-MSI) <br />Source: CQK0083-01 <br />Prepared & Analyzed: 11/06/07 <br />Arsenic <br />10.2 <br />1.0 mglkg <br />5.00 6.71 70.8 75-125 QM -5 <br />Selenium <br />4.54 <br />1.0 <br />5.00 ND 90.8 75-125 <br />Thallium <br />5.42 <br />1.0 <br />5.00 ND 108 75-125 <br />Matrix Spike Dup (CQ09151-MSDI) <br />Source: CQK0083-01 <br />Prepared & Analyzed: 11/06/07 <br />Arsenic <br />10.3 <br />1.0 mg/kg <br />5.00 6.71 71.5 75-125 0.341 30 QM -5 <br />Selenium <br />4.79 <br />1.0 <br />5.00 ND 95.8 75-125 5.36 30 <br />Thallium <br />5.42 <br />1.0 <br />5.00 ND 108 75-125 0.185 30 <br />Batch CQ09152 - EPA 3050B <br />Blank (CQ09152-BLKI) <br />Prepared & Analyzed: 11/06/07 <br />Antimony <br />ND <br />2.5 mg/kg <br />Barium <br />ND <br />1.0 " <br />Beryllium <br />ND <br />0.50 " <br />Cadmium <br />ND <br />0.50 " <br />Cobalt <br />ND <br />1.0 " <br />Chromium <br />ND <br />1.0 " <br />Copper <br />ND <br />1.0 " <br />Lead <br />ND <br />2.5 " <br />Molybdenum <br />ND <br />1.0 " <br />Nickel <br />ND <br />1.0 " <br />vanadium <br />ND <br />1.0 " <br />Zinc <br />ND <br />1.0 " <br />LCS (CQ09152-BSI) <br />Prepared & Analyzed: 11/06/07 <br />Antimony <br />23.3 <br />2.5 mg/kg <br />25.0 93.2 75-125 <br />Barium <br />94.0 <br />1.0 <br />100 94.0 75-125 <br />Beryllium <br />2.27 <br />0.50 <br />2.50 90.9 75-125 <br />Cadmium <br />2.26 <br />0.50 <br />2.50 90.4 75-125 <br />Cobalt <br />22.8 <br />1.0 <br />25.0 91.2 75-125 <br />Chromium <br />9.16 <br />1.0 <br />10.0 91.6 75-125 <br />Copper <br />11.5 <br />1.0 <br />12.5 92.3 75-125 <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 />