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ON <br /> �1a�alytical laboratory CERTIFICATE OFANALYSIS <br /> Monday,December 14,2015 <br /> Attention: William Little <br /> Advanced GeoEnvironmental, Inc. Report Page 15 of 28 <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 °/uREC RPD <br /> Analyte Result Limit Units Level Result °/6REC Limits RPD Limit Notes <br /> Batch AL50226-Volatiles <br /> Blank(AL50226-BLKI) Prepared&Analyzed:02-Dec-15 <br /> tert-Amyl Methyl Ether(TAME) ND 2.00 ug/kg <br /> o-Xylene ND 2.00 <br /> tert-Butyl Alcohol(TBA) ND 50.0 <br /> Diisopropyl Ether(DIPE) ND 2.00 <br /> Surrogate:l,2-Dichloroethane-d4 40.9 40.0 101 76-130 <br /> LCS(AL50226-BSI) Prepared&Analyzed:02-Dec-15 <br /> Benzene 20.5 2.00 ug/kg 20.0 102 88-124 <br /> Chlorobenzene 22.6 2.00 20.0 113 75-117 <br /> 1,1-Dichloroethene 18.5 2.00 20.0 93 79-133 <br /> Toluene 21.9 2.00 20.0 110 88-122 <br /> Trichloroethene 21.3 2.00 20.0 107 85-117 <br /> Surrogate:l,2-Dichloroethane-d4 42.3 40.0 106 76-130 <br /> LCS Dup(AL50226-BSDI) Prepared&Analyzed:02-Dec-15 <br /> Benzene 20.8 2.00 ug/kg 20.0 104 88-124 1 20 <br /> Chlorobenzene 22.5 2.00 20.0 112 75-117 0.6 20 <br /> 1,1-Dichloroethene 17.6 2.00 20.0 88 79-133 5 20 <br /> Toluene 21.9 2.00 20.0 110 88-122 0.1 20 <br /> Trichloroethene 21.2 2.00 20.0 106 85-117 0.4 20 <br /> Surrogate:l,2-Dichloroethane-d4 39.4 40.0 99 76-130 <br /> Matrix Spike(AL50226-MSI) Source:5120227-03 Prepared&Analyzed:02-Dec-15 <br /> Benzene 18.6 2.00 ug/kg 20.0 ND 93 60-124 <br /> Chlorobenzene 22.0 2.00 20.0 ND 110 60-117 <br /> I,l-Dichloroethene 17.3 2.00 20.0 ND 87 70-133 <br /> Toluene 19.8 2.00 20.0 ND 99 65-122 <br /> Trichloroethene 19.9 2.00 20.0, ND 99 65-117 <br /> Surrogate:l,2-Dichloroethane-d4 38.3 40.0 96 76-130 <br /> mg/L=milligrams per Liter=ppm DLR=Detection Limitfor Purpose ofReportlng. <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 />