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Excelchem Environmental Labs <br /> DTE Stockton,LLC Project: Ash <br /> 2526 W.Washington St. Project Number: [none] Date Reported: <br /> Stockton,CA 95203 Project Manager: Dan Crawford 08/10/17 16:22 <br /> Total Recoverable Metals-Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch A[H0089-EPA 6010B <br /> Matrix Spike(A[H0089-MS1) Source:1708038-01 Prepared&Analyzed:08/09/17 <br /> Antimony 28.4 1.0 mg/kg 100 1.93 26.4 75-125 QM-01 <br /> Arsenic 117 1.0 100 22.8 94.5 75-125 <br /> Arsenic 117 1.0 100 22.8 94.5 75-125 <br /> Barium 428 2.0 100 351 77.3 75-125 <br /> Beryllium 86.8 0.5 100 0.362 86.4 75-125 <br /> Cadmium 89.4 1.0 100 1.01 88.4 75-125 <br /> Chromium 115 1.0 100 32.9 82.4 75-125 <br /> Cobalt 85.0 5.0 100 6.94 78.1 75-125 <br /> Copper 188 2.0 100 116 71.7 75-125 QM-01 <br /> Lead 106 1.0 100 31.4 74.7 75-125 QM-01 <br /> Molybdenum 83.3 1.0 100 1.71 81.6 75-125 <br /> Nickel 101 1.0 100 22.4 78.6 75-125 <br /> Lead 106 1.0 100 31.4 74.7 75-125 QM-01 <br /> Selenium 89.3 2.0 100 ND 89.3 75-125 <br /> Silver 82.1 1.0 100 ND 82.1 75-125 <br /> Thallium 68.2 2.0 100 ND 68.2 75-125 QM-01 <br /> Vanadium 112 2.0 100 35.5 76.0 75-125 <br /> Zinc 340 2.0 100 272 68.5 75-125 QM-01 <br /> Matrix Spike Dup(A[H0089-MSD1) Source:1708038-01 Prepared&Analyzed:08/09/17 <br /> Antimony 28.1 1.0 mg/kg 100 1.93 26.2 75-125 0.921 25 QM-01 <br /> Arsenic 112 1.0 100 22.8 89.5 75-125 4.36 25 <br /> Arsenic 112 1.0 100 22.8 89.5 75-125 4.36 25 <br /> Barium 419 2.0 100 351 68.2 75-125 2.15 25 QM-01 <br /> Beryllium 83.9 0.5 100 0.362 83.5 75-125 3.42 25 <br /> Cadmium 85.9 1.0 100 1.01 84.9 75-125 3.99 25 <br /> Chromium 111 1.0 100 32.9 78.0 75-125 3.89 25 <br /> Cobalt 81.8 5.0 100 6.94 74.8 75-125 3.87 25 QM-01 <br /> Copper 180 2.0 100 116 64.5 75-125 3.91 25 QM-01 <br /> Lead 103 1.0 100 31.4 72.0 75-125 2.58 25 QM-01 <br /> Molybdenum 79.6 1.0 100 1.71 77.9 75-125 4.47 25 <br /> Nickel 96.8 1.0 100 22.4 74.4 75-125 4.29 25 QM-01 <br /> Lead 103 1.0 100 31.4 72.0 75-125 2.58 25 QM-01 <br /> Selenium 85.6 2.0 100 ND 85.6 75-125 4.24 25 <br /> Silver 79.5 1.0 100 ND 79.5 75-125 3.25 25 <br /> Thallium 64.9 2.0 100 ND 64.9 75-125 5.08 25 QM-01 <br /> Vanadium 108 2.0 100 35.5 72.2 75-125 3.47 25 QM-01 <br /> Zinc 330 2.0 100 272 58.4 75-125 3.01 25 QM-01 <br /> EXcelchem.Enviromnental Lab. The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> Laboratory Representative Page 9 of 16 <br />