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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> Page 19 of 20 07/23/21 14:52 <br /> Wallace Kuhl&Associates-West Sacramento Project: Westlake Villages E,G,H,I,J <br /> 3050 Industrial Boulevard Project Number: 13221.02 CLS Work Order#:21G1148 <br /> West Sacramento,CA 95691 Project Manager: Dennis Nakamoto COC#: <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 2105965-LUFT-DHS GCNV <br /> LCS(2105965-BSI) Prepared&Analyzed:07/21/21 <br /> Surrogate:Decachlorobiphenyl 6.82 yg/kg 8.33 82 52-141 <br /> LCS Dup(2105965-BSD1) Prepared&Analyzed:07/21/21 <br /> Aldrin 16.5 1.0 gg/kg 16.7 99 47-132 5 30 <br /> gamma-BHC(Lindane) 16.8 1.7 16.7 101 56-133 4 30 <br /> 4,4'-DDT 19.1 3.3 16.7 114 46-137 3 30 <br /> Dieldrin 18.0 1.0 16.7 108 44-143 2 30 <br /> Endrin 17.7 3.3 16.7 106 30-147 0.4 30 <br /> Heptachlor 15.1 1.7 16.7 91 33-148 7 30 <br /> Surrogate:Tetrachloro-meta-xylene 5.88 8.33 71 46-139 <br /> Surrogate:Decachlorobiphenyl 7.11 8.33 85 52-141 <br /> Matrix Spike(2105965-MS1) Source:21G1148-80 Prepared&Analyzed:07/21/21 <br /> Aldrin 18.3 1.0 µg/kg 16.7 ND 110 47-138 <br /> gamma-BHC(Lindane) 19.0 1.7 16.7 ND 114 38-144 <br /> 4,4'-DDT 18.9 3.3 16.7 ND 113 41-157 <br /> Dieldrin 20.3 1.0 16.7 ND 122 46-155 <br /> Endrin 20.4 3.3 16.7 ND 122 34-149 <br /> Heptachlor 15.5 1.7 16.7 ND 93 36-155 <br /> Surrogate:Tetrachloro-meta-xylene 15.7 20.8 75 46-139 <br /> Surrogate:Decachlorobiphenyl 19.2 20.8 92 52-141 <br /> Matrix Spike Dup(2105965-MSD1) Source:21G1148-80 Prepared&Analyzed:07/21/21 <br /> Aldrin 19.3 1.0 gg/kg 16.7 ND 116 47-138 6 35 <br /> gamma-BHC(Lindane) 20.1 1.7 16.7 ND 121 38-144 6 35 <br /> 4,4'-DDT 18.7 3.3 16.7 ND 112 41-157 1 35 <br /> Dieldrin 21.2 1.0 16.7 ND 127 46-155 4 35 <br /> Endrin 21.3 3.3 16.7 ND 128 34-149 5 35 <br /> Heptachlor 16.6 1.7 16.7 ND 100 36-155 7 35 <br /> Surrogate:Tetrachloro-meta-xylene 15.4 20.8 74 46-139 <br /> Surrogate:Decachlorobiphenyl 18.7 20.8 90 52-141 <br /> 3249 Fitzgerald Road,Rancho Cordova,CA 95742 1 800.638.7301 1 Tel:916.638.7301 x102 1 Fax:916.638.4510 1 www.californialob.com <br /> Small Business#2916 1 ELAP#1233 1 NAICS#541380 1 CA SWRCB ELAP Accreditation/Registration Number 1233 <br />