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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 08/07/17 10:51 <br /> CFA CT 1 <br /> 1708005-01(Soil) <br /> Reporting Date Date <br /> Analyte Result Limit Units Batch Prepared Analyzed Method Notes <br /> Wet Chemistry <br /> pH 11.987 0.10000 pH Units A[H0042 08/03/17 08/03/17 EPA 9040B <br /> Total Recoverable Metals <br /> Arsenic 17.8 1.0 mg/kg A[H0052 08/03/17 08/04/17 EPA 6010B <br /> Antimony 1.8 1.0 " <br /> Arsenic 17.8 1.0 " <br /> Barium 302 2.0 " <br /> Beryllium ND 0.5 <br /> Cadmium ND 1.0 <br /> Chromium 27.4 1.0 " <br /> Cobalt 6.3 5.0 " <br /> Copper 110 2.0 " <br /> Lead 27.0 1.0 " <br /> Molybdenum 1.5 1.0 " <br /> Nickel 21.6 1.0 " <br /> Selenium ND 2.0 " <br /> Silver ND 1.0 " <br /> Thallium ND 2.0 " <br /> Vanadium 31.2 2.0 " <br /> Zinc 270 2.0 " <br /> Lead 27.0 1.0 " <br /> Mercury ND 0.016 A[H0046 08/04/17 EPA7471A <br /> STLC Metals <br /> Antimony ND 2.0 mg/L A[H0056 08/04/17 08/04/17 EPA 6010B <br /> Arsenic 1.3 0.2 " <br /> Barium 5.1 0.4 " <br /> Beryllium ND 0.1 " <br /> Cadmium ND 0.2 " <br /> Chromium 0.6 0.2 " <br /> Cobalt ND 1.0 " <br /> Copper 3.1 0.4 " <br /> Lead ND 0.2 <br /> Molybdenum 0.2 0.2 " <br /> Nickel 0.4 0.2 " <br /> Selenium ND 0.4 <br /> Silver ND 0.4 <br /> Thallium ND 0.4 <br /> Vanadium ND 0.4 <br /> Zinc 12.8 0.4 " <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 2of15 <br />