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Excelchem Environmental Labs <br /> DTE Stockton,LLC Project: Ash <br /> 2526 W.Washington St. Project Number: 4701052861 Date Reported: <br /> Stockton,CA 95203 Project Manager: Dan Crawford 11/13/17 17:56 <br /> CFA CT 1 <br /> 1711051-01(Soil) <br /> Reporting Date Date <br /> Analyte Result Limit Units Batch Prepared Analyzed Method Notes <br /> Wet Chemistry <br /> pH 12.193 0.10000 pH Units A[K0074 11/09/17 11/09/17 EPA 9040B <br /> Total Recoverable Metals <br /> Arsenic 18.9 1.0 mg/kg A[K0080 11/10/17 11/13/17 EPA 6010B <br /> Antimony 1.1 1.0 " <br /> Arsenic 18.9 1.0 " <br /> Barium 358 2.0 " <br /> Beryllium ND 0.5 " <br /> Cadmium 1.3 1.0 " <br /> Chromium 29.4 1.0 " <br /> Cobalt 6.0 5.0 " <br /> Copper 170 2.0 " <br /> Lead 37.2 1.0 " <br /> Molybdenum 2.5 1.0 " <br /> Nickel 18.8 1.0 " <br /> Selenium ND 2.0 " <br /> Silver ND 1.0 " <br /> Thallium ND 2.0 <br /> Vanadium 33.4 2.0 " <br /> Zinc 287 2.0 " <br /> Lead 37.2 1.0 " <br /> Mercury 0.170 0.016 A[K0064 11/09/17 11/09/17 EPA 7471A <br /> STLC Metals <br /> Antimony ND 2.0 mg/L A[K0086 11/13/17 11/13/17 EPA 6010B <br /> Arsenic 1.1 0.2 " <br /> Barium 1.3 0.4 " <br /> Beryllium ND 0.1 " <br /> Cadmium ND 0.2 " <br /> Chromium 0.7 0.2 " <br /> Cobalt ND 1.0 " <br /> Copper 5.6 0.4 " <br /> Lead 0.3 0.2 " <br /> Molybdenum 0.2 0.2 " <br /> Nickel 0.3 0.2 " <br /> Selenium ND 0.4 <br /> Silver ND 0.4 <br /> Thallium ND 0.4 <br /> Vanadium ND 0.4 <br /> Zinc 4.3 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 2of15 <br />