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ON <br /> 00�=nLaboratory CERTIFICATE OFANALYSIS <br /> Friday,May 9,2014 <br /> Attention: Bill Litle <br /> Advanced GeoEnvironmental, Inc. Report Page 18 of 25 <br /> 837 Shaw Road <br /> Stockton, CA 95215 <br /> Metals by EPA 6000/7000 Series Methods-Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source °/uREC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AE40620-General Preparation <br /> Matrix Spike Dup(AE40620-MSDI) Source:4050610-01 Prepared&Analyzed:06-May-14 <br /> Cadmium 19.9 0.0500 mg/kg wet 25.0 ND 79 75-125 4 20 <br /> Chromium 28.9 0.0500 25.0 0.0768 115 75-125 9 20 <br /> Lead 31.6 0.0500 25.0 0.722 123 75-125 9 20 <br /> Nickel 28.7 0.0500 25.0 0.206 114 75-125 9 20 <br /> Zinc 30.2 0.500 25.0 2.24 112 75-125 0.1 20 <br /> mgl=milligrams per Liter=ppm DLR=Detection Limi!for Putpose of Reporting. <br /> ug,L=micrograms perLiter=ppb Erceptional.sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> 10Lre .., <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 vhone: (209) 477-8105 Fax: (209) 546-7497 <br />