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00Ar=nLaboratory CERTIFICATE OFANALYSIS <br /> Friday,May 9,2014 <br /> Attention: Bill Litle <br /> Advanced GeoEnviron mental, Inc. <br /> Report Page 22 of 25 <br /> 837 Shaw Road <br /> Stockton, CA 95215 <br /> Volatile Organic Compounds by EPA Method 8260B-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 AE40201-Volatiles <br /> Blank(AE40201-BLKI) Prepared:02-May-14 Analyzed:06-May-14 <br /> o-Xylene ND 2.00 ug/kg <br /> tert-Amyl Methyl Ether(TAME) ND 2.00 " <br /> tert-Butyl Alcohol(TBA) ND 50.0 " <br /> Diisopropyl Ether(DIPE) ND 2.00 " <br /> Surrogate:l,2-Dichloroethane-d4 38.9 40.0 97 76-114 <br /> LCS(AE40201-BSI) Prepared:02-May-14 Analyzed:05-May-14 <br /> Benzene 45.4 2.00 ug/kg 40.0 113 88-124 <br /> Chlorobenzene 38.5 2.00 40.0 96 88-117 <br /> I,1-Dichloroethene 46.7 2.00 40.0 117 79-133 <br /> Toluene 44.2 2.00 40.0 111 88-122 <br /> Trichloroethene 44.7 2.00 40.0 112 85-117 <br /> Surrogate:l,2-Dichloroethane-d4 38.0 40.0 95 76-114 <br /> Matrix Spike(AE40201-MSI) Source:4050109-01 Prepared:02-May-14 Analyzed:06-May-14 <br /> Benzene 38.0 2.00 ug/kg 40.0 ND 95 60-124 <br /> Chlorobenzene 37.6 2.00 40.0 ND 94 60-117 <br /> 1,1-Dichloroethene 35.9 2.00 40.0 ND 90 70-133 <br /> Toluene 41.5 2.00 40.0 ND 104 65-122 <br /> Trichloroethene 42.1 2.00 40.0 ND 105 65-117 <br /> Surrogate:l,2-Dichloroethane-d4 39.0 40.0 97 76-114 <br /> Matrix Spike Dup(AE40201-MSDI) Source:4050109-01 Prepared:02-May-14 Analyzed:06-May-14 <br /> Benzene 39.5 2.00 ug/kg 40.0 ND 99 60-124 4 15 <br /> Chlorobenzene 37.7 2.00 40.0 ND 94 60-117 0.3 15 <br /> LI-Dichloroethene 41.2 2.00 40.0 ND 103 70-133 14 15 <br /> Toluene 45.6 2.00 40.0 ND 114 65-122 9 15 <br /> Trichloroethene 40.5 2.00 40.0 ND 101 65-117 4 15 <br /> Surrogate:l,l-Dichloroethane-d4 37.7 40.0 94 76-114 <br /> mg:L=millignunns per Liter=ppm DLR=Detection Limit jor Purpose ojReporting. <br /> ug,L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />