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Excelchem Environmental Labs <br /> DTE Stockton,LLC Project: Ash <br /> 2526 W.Washington St. Project Number: #4701180998 Date Reported: <br /> Stockton,CA 95203 Project Manager: Dan Crawford 06/07/18 16:27 <br /> BA CT 1 <br /> 1806007-01(Soil) <br /> Reporting Date Date <br /> Analyte Result Limit Units Batch Prepared Analyzed Method Notes <br /> Wet Chemistry <br /> pH 12.462 0.10000 pH Units AT0031 06/05/18 06/05/18 EPA 9040B <br /> Total Recoverable Metals <br /> Arsenic 4.0 1.0 mg/kg AT0029 06/05/18 06/05/18 EPA 6010B <br /> Antimony ND 1.0 <br /> Arsenic 4.0 1.0 " <br /> Barium 199 2.0 " <br /> Beryllium ND 0.5 " <br /> Cadmium ND 1.0 " <br /> Chromium 22.1 1.0 " <br /> Cobalt 6.6 5.0 " <br /> Copper 83.5 2.0 " <br /> Lead 13.9 1.0 " <br /> Molybdenum ND 1.0 <br /> Nickel 24.8 1.0 " <br /> Selenium ND 2.0 <br /> Silver ND 1.0 " <br /> Thallium ND 2.0 " <br /> Vanadium 31.4 2.0 " <br /> Zinc 30.5 2.0 " <br /> Lead 13.9 1.0 " <br /> Mercury ND 0.016 AT0036 06/06/18 06/06/18 EPA 7471A <br /> STLC Metals <br /> Antimony ND 2.0 mg/L AT0044 06/06/18 06/06/18 EPA 6010B <br /> Arsenic 0.4 0.2 " <br /> Barium 6.7 0.4 " <br /> Beryllium ND 0.1 <br /> Cadmium ND 0.2 <br /> Chromium 0.5 0.2 " <br /> Cobalt ND 1.0 <br /> Copper 5.2 0.4 " <br /> Lead 1.2 0.2 " <br /> Molybdenum ND 0.2 " <br /> Nickel 0.7 0.2 " <br /> Selenium ND 0.4 " <br /> Silver ND 0.4 <br /> Thallium ND 0.4 <br /> Vanadium 0.6 0.4 " <br /> Zinc 1.7 0.4 " <br /> Excelchem 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 2of14 <br />