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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 02/07/17 15:07 <br /> Bottom Ash Weekly Composite <br /> 1701107-02(Soil) <br /> Reporting Date Date <br /> Analyte Result Limit Units Batch Prepared Analyzed Method Notes <br /> Wet Chemistry <br /> pH 12.54 0.1000 pH Units A[A0146 01/24/17 01/24/17 EPA 9040B <br /> Total Recoverable Metals <br /> Arsenic 7.3 1.0 mg/kg A[B0027 01/27/17 02/03/17 EPA 6010B <br /> Lead 9.0 1.0 " <br /> STLC Analysis <br /> Arsenic 0.7 0.2 mg/L A[A0157 01/26/17 01/26/17 EPA 6010B <br /> Lead N D 0.2 " " " " <br /> 11 <br /> EXcelchern Environmental Lab. The results in this report apply to the samples analyzed in accordance with the chain of <br /> y custody document.This analytical report must be reproduced in its entirety. <br /> Laboratory Representative Page 4of9 <br />