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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 05/17/18 18:09 <br /> CFA CT 1 <br /> 1805087-01(Soil) <br /> Reporting Date Date <br /> Analyte Result Limit Units Batch Prepared Analyzed Method Notes <br /> Wet Chemistry <br /> pH 12.691 0.10000 pH Units AT0117 05/15/18 05/15/18 EPA 9040B <br /> Total Recoverable Metals <br /> Arsenic 17.1 1.0 mg/kg AT0127 05/15/18 05/16/18 EPA 6010B <br /> Antimony 1.7 1.0 " <br /> Arsenic 17.1 1.0 " <br /> Barium 430 2.0 " <br /> Beryllium ND 0.5 " <br /> Cadmium 1.5 1.0 " <br /> Chromium 42.7 1.0 " <br /> Cobalt 9.6 5.0 " <br /> Copper 141 2.0 " <br /> Lead 52.7 1.0 " <br /> Molybdenum 2.4 1.0 " <br /> Nickel 33.0 1.0 " <br /> Selenium ND 2.0 <br /> Silver ND 1.0 <br /> Thallium ND 2.0 <br /> Vanadium 55.3 2.0 " <br /> Zinc 335 2.0 " <br /> Lead 52.7 1.0 " <br /> Mercury ND 0.016 AT0121 05/15/18 05/15/18 EPA 7471A <br /> STLC Metals <br /> Antimony ND 2.0 mg/L AT0144 05/17/18 05/17/18 EPA 6010B <br /> Arsenic 0.8 0.2 " <br /> Barium 3.6 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 2.4 0.4 " <br /> Lead 0.9 0.2 " <br /> Molybdenum 0.2 0.2 " <br /> Nickel 0.2 0.2 " <br /> Selenium ND 0.4 " <br /> Silver ND 0.4 <br /> Thallium ND 0.4 <br /> Vanadium ND 0.4 <br /> Zinc 3.2 0.4 " <br /> Excelchetn 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 /> b_ <br /> Laboratory Representative Page 2 of 16 <br />