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Excelchem Environmental Labs <br /> DTE Stockton,LLC Project: Bottom Ash Truck 1 Q3 Testing <br /> 2526 W.Washington St. Project Number: 4701180998 Date Reported: <br /> Stockton,CA 95203 Project Manager: Genny Huffinan 09/17/18 17:09 <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\I0079-EPA 6010B <br /> Matrix Spike(A\10079-MS1) Source:1809048-01 Prepared:09/12/18 Analyzed:09/14/18 <br /> Antimony 37.8 1.0 mg/kg 100 0.565 37.2 75-125 QM-01 <br /> Arsenic 103 1.0 100 3.66 99.2 75-125 <br /> Arsenic 103 1.0 100 3.66 99.2 75-125 <br /> Barium 437 2.0 100 227 210 75-125 QM-01 <br /> Beryllium 88.8 0.5 100 0.099 88.7 75-125 <br /> Cadmium 97.1 1.0 100 0.153 96.9 75-125 <br /> Chromium 117 1.0 100 21.4 95.6 75-125 <br /> Cobalt 92.2 5.0 100 6.43 85.8 75-125 <br /> Copper 158 2.0 100 57.3 101 75-125 <br /> Lead 87.8 1.0 100 6.22 81.6 75-125 <br /> Copper 158 2.0 100 57.3 101 75-125 <br /> Molybdenum 90.9 1.0 100 0.909 90.0 75-125 <br /> Nickel 113 1.0 100 24.8 88.6 75-125 <br /> Lead 87.8 1.0 100 6.22 81.6 75-125 <br /> Selenium 92.0 2.0 100 ND 92.0 75-125 <br /> Silver 92.6 1.0 100 ND 92.6 75-125 <br /> Thallium 74.6 2.0 100 ND 74.6 75-125 QM-01 <br /> Vanadium 113 2.0 100 26.6 86.8 75-125 <br /> Zinc 132 2.0 100 38.0 93.7 75-125 <br /> Matrix Spike Dup(A\10079-MSD1) Source:1809048-01 Prepared:09/12/18 Analyzed:09/14/18 <br /> Antimony 33.1 1.0 mg/kg 100 0.565 32.5 75-125 13.2 25 QM-01 <br /> Arsenic 99.4 1.0 100 3.66 95.8 75-125 3.43 25 <br /> Arsenic 99.4 1.0 100 3.66 95.8 75-125 3.43 25 <br /> Barium 418 2.0 100 227 191 75-125 4.50 25 QM-01 <br /> Beryllium 86.8 0.5 100 0.099 86.7 75-125 2.27 25 <br /> Cadmium 95.7 1.0 100 0.153 95.6 75-125 1.42 25 <br /> Chromium 112 1.0 100 21.4 90.8 75-125 4.18 25 <br /> Cobalt 89.2 5.0 100 6.43 82.8 75-125 3.30 25 <br /> Copper 149 2.0 100 57.3 91.9 75-125 5.67 25 <br /> Lead 85.4 1.0 100 6.22 79.1 75-125 2.81 25 <br /> Copper 149 2.0 100 57.3 91.9 75-125 5.67 25 <br /> Molybdenum 88.0 1.0 100 0.909 87.1 75-125 3.24 25 <br /> Nickel 110 1.0 100 24.8 85.5 75-125 2.77 25 <br /> Lead 85.4 1.0 100 6.22 79.1 75-125 2.81 25 <br /> Selenium 89.1 2.0 100 ND 89.1 75-125 3.15 25 <br /> Silver 92.0 1.0 100 ND 92.0 75-125 0.585 25 <br /> Thallium 71.6 2.0 100 ND 71.6 75-125 4.04 25 QM-01 <br /> Vanadium 116 2.0 100 26.6 89.2 75-125 2.09 25 <br /> Zinc 124 2.0 100 38.0 86.2 75-125 5.86 25 <br /> Excelchern Environmental 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 10 of 17 <br />