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00!37n Laboratory CERTIFICATE OFANA LYSIS <br /> Friday;May 9,2014 <br /> Attention: Bill Litle <br /> Advanced GeoEnvironmental, Inc. Report Page 17 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 %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AE40110-General Preparation <br /> Blank(AE40110-BLKI) Prepared&Analyzed:O1-May-14 <br /> Chromium(VI) ND 0.0500 mg/kg <br /> LCS(AE40110-BSI) Prepared&Analyzed:O 1-May-14 <br /> Chromium(VI) 0.0480 0.0500 mg/kg 0.0500 96 80-120 <br /> LCS Dup(AE40110-BSDI) Prepared&Analyzed:01-May-14 <br /> Chromium(VI) 0.0475 0.0500 mg/kg 0.0500 95 80-120 l 20 <br /> Batch AE40620-General Preparation <br /> Blank(AE40620-BLKI) Prepared&Analyzed:06-May-14 <br /> Cadmium ND 0.0100 mg/kg wet <br /> Chromium ND 0.0100 " <br /> Lead ND 0.0100 " <br /> Nickel ND 0.0100 <br /> Zinc ND 0.100 " <br /> LCS(AE40620-BSI) Prepared&Analyzed:06-May-14 <br /> Cadmium 0.0801 0.0100 mg/kg wet 0.100 80 75-125 <br /> Chromium 0.0904 0.0100 O.I00 90 75-125 <br /> Lead 0.124 0.0100 0.100 124 75-125 <br /> Nickel 0.0873 0.0100 0.100 87 75-125 <br /> Zinc 0.0889 0.0100 0.100 89 80-120 <br /> Matrix Spike(AE40620-MSI) Source:4050610-01 Prepared&Analyzed:06-May-14 <br /> Cadmium 19.1 0.0500 mg/kg wet 25.0 ND 76 75-125 <br /> Chromium 26.4 0.0500 25.0 0.0768 105 75-125 <br /> Lead 29.0 0.0500 25.0 0.722 113 75-125 <br /> Nickel 26.1 0.0500 25.0 0.206 104 75-125 <br /> Zinc 30.2 0.500 25.0 2.24 112 75-125 <br /> mg,L=milligrams per Liter=ppm DLR=Detection Limitfor Ptapase ofRepmving. <br /> ug,L=micrograms per Liter=ppb Exceptional,sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> 4��5/Ot� <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />