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GeoAnalytical Laboratories, Inc. <br />2 00 Maryann Dr. Turlock, CA 95380 Phone (209) 669-0100 Fax (209) 593-2212 <br />email: infongeoanaly(icallab.com <br />Report # E8A2520 Project: GMM Date: 02/21/18 <br />San Joaquin County Environmental ealth Date Recd: 0125/18 <br />1868 East Hazelton Ave <br />Stockton, CA 95205 <br />Inorganic Chemistry - Quality Control <br />GeoAnalytical Laboratories, Inc. <br />Reporting Spike Source %REC RPD <br />lAnalyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch E000412 - STLC Prepared: 02/08/18 Analyzed: 02/12/18 <br />Blank (E000412-BLK1) <br />Chromium <br />80-120 <br />ND <br />0.02 <br />mg/L <br />91 <br />80-120 <br />Lead <br />20 <br />ND <br />0.10 <br />80-120 <br />LCS (E000412-BS1) <br />QM -4X <br />376 <br />Chromium <br />0.242 <br />0.02 <br />mg/L <br />0.2500 <br />Lead <br />QM -4X <br />0.23 <br />0.10 <br />0.7 <br />0.2500 <br />QM -07. <br />LCS Dup (E000412-BSD1) <br />QM -4X <br />490 <br />80-120 <br />Chromium <br />20 <br />0.243 <br />0.02 <br />mg/L <br />0.2500 <br />Lead <br />0.23 <br />0.10 <br />" <br />0.2500 <br />Matrix Spike (E000412 -MSI) <br />Source: E8A2520-01 <br />Chromium <br />10.1 <br />0.02 <br />mg/L <br />0.2500 <br />9.55 <br />Lead <br />46.9 <br />0.10 <br />0.2500 <br />45.9 <br />Matrix Spike Dup (E000412-MSDI) <br />Source: E8A2520-01 <br />Chromium <br />10.2 <br />0.02 <br />mg/L <br />0.2500 <br />9.55 <br />Lead <br />47.2 <br />0.10 <br />0.2500 <br />45.9 <br />Certification 4 2585 <br />97 80-120 <br />93 80-120 <br />97 <br />80-120 <br />0.4 <br />20 <br />91 <br />80-120 <br />2 <br />20 <br />232 <br />80-120 <br />QM -07. <br />QM -4X <br />376 <br />80-120 <br />QM -07. <br />QM -4X <br />262 <br />80-120 <br />0.7 <br />20 <br />QM -07. <br />QM -4X <br />490 <br />80-120 <br />0.6 <br />20 <br />QM -07. <br />QM -4X <br />