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CALIFORNIA LABORATORY SERVICES <br /> Page 29 of 31 02/08/13 12:06 <br /> Tetra Tech Geo Project: VOP-TRACY <br /> 2969 Prospect Park Drive,Suite 100 Project Number: 117-7059009 CLS Work Order#:CWB0016 <br /> Rancho Cordova,CA 95670 Project Manager: Tim Costello COC#:2 COCs <br /> Organochlorine Pesticides by EPA Method 8081A- Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CW00710-LUFT-DHS GCNV <br /> LCS(CW00710-BS1) Prepared&Analyzed:02/04/13 <br /> Surrogate:Tetrachloro-meta-xylene 7.26 Uglkg 8.33 87 46-139 <br /> Surrogate:Decachlorobiphenyl 7.79 8.33 93 52-141 <br /> LCS Dup(CW00710-BSD1) Prepared&Analyzed:02/04/13 <br /> Aldrin 14.3 1.0 Ug/kg 16.7 86 47-132 2 30 <br /> gamma-BHC(Lindane) 14.5 10 16.7 87 56-133 1 30 <br /> 4,4'-DDT 15.9 15 16.7 96 46-137 2 30 <br /> Dieldrin 15.6 1.0 16.7 93 44-143 2 30 <br /> Endrin 16.8 15 16.7 101 30-147 3 30 <br /> Heptachlor 14.7 5.0 16.7 88 33-148 2 30 <br /> Surrogate:Tetrachloro-meta-xylene 6.77 8.33 81 46-139 <br /> Surrogate:Decachlorobiphenyl 8.04 8.33 96 52-141 <br /> Matrix Spike(CW00710-MSI) Source:CWB0020-13 Prepared&Analyzed:02/04/13 <br /> Aldrin 20.5 5.0 Ug/kg 16.7 ND 123 47-138 <br /> gamma-BHC(Lindane) 14.4 50 16.7 ND 87 38-144 <br /> 4,4'-DDT 18.4 75 16.7 ND 110 41-157 <br /> Dieldrin 16.8 5.0 16.7 ND 101 46-155 <br /> Endrin 15.3 75 16.7 ND 92 34-149 <br /> Heptachlor 14.4 25 16.7 ND 86 36-155 <br /> Surrogate:Tetrachloro-meta-xylene 19.0 20.8 91 46-139 <br /> Surrogate:Decachlorobiphenyl 19.3 20.8 93 52-141 <br /> Matrix Spike Dup(CW00710-MSDI) Source:CWB0020-13 Prepared&Analyzed:02/04/13 <br /> Aldrin 19.0 5.0 Ug/kg 16.7 ND 114 47-138 8 35 <br /> gamma-BHC(Lindane) 14.2 50 16.7 ND 85 38-144 1 35 <br /> 4,4'-DDT 15.4 75 16.7 ND 93 41-157 18 35 <br /> Dieldrin 18.1 5.0 16.7 ND 109 46-155 7 35 <br /> Endrin 16.2 75 16.7 ND 97 34-149 6 35 <br /> Heptachlor 14.5 25 16.7 ND 87 36-155 1 35 <br /> Surrogate:Tetrachloro-meta-xylene 20.5 20.8 99 46-139 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />