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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 02/22/18 13:14 <br /> BACT4 <br /> 1802117-01(Soil) <br /> Reporting Date Date <br /> Analyte Result Limit Units Batch Prepared Analyzed Method Notes <br /> Wet Chemistry <br /> pH 12.588 0.10000 pH Units A\B0198 02/19/18 02/19/18 EPA 9040B <br /> Total Recoverable Metals <br /> Arsenic 1.5 1.0 mg/kg A\B0160 02/16/18 02/19/18 EPA 6010B <br /> Copper 124 2.0 " <br /> Lead 1.4 1.0 " <br /> STLC Analysis <br /> Arsenic ND 0.2 mg/L A\B0196 02/19/18 02/20/18 EPA 6010B <br /> Copper 3.5 0.4 " <br /> Lead ND 0.2 <br /> Geophysical <br /> Moisture 18.8 0.100 % ABB0002 02/19/18 02/19/18 %moisture <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 2of9 <br />