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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> Page 21 of 22 07/21/21 15:23 <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#:21G1076 <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 2105935-LUFT-DHS GCNV <br /> LCS(2105935-BSI) Prepared&Analyzed:07/20/21 <br /> Surrogate:Decachlorobiphenyl 9.08 yg/kg 8.33 109 52-141 <br /> LCS Dup(2105935-BSD1) Prepared&Analyzed:07/20/21 <br /> Aldrin 17.8 1.0 gg/kg 16.7 107 47-132 4 30 <br /> gamma-BHC(Lindane) 18.3 1.7 16.7 110 56-133 10 30 <br /> 4,4'-DDT 21.6 3.3 16.7 130 46-137 4 30 <br /> Dieldrin 21.4 1.0 16.7 128 44-143 5 30 <br /> Endrin 22.0 3.3 16.7 132 30-147 6 30 <br /> Heptachlor 16.1 1.7 16.7 96 33-148 3 30 <br /> Surrogate:Tetrachloro-meta-xylene 6.03 8.33 72 46-139 <br /> Surrogate:Decachlorobiphenyl 9.14 8.33 110 52-141 <br /> Matrix Spike(2105935-MS1) Source:21G1076-05 Prepared&Analyzed:07/20/21 <br /> Aldrin 12.4 1.0 µg/kg 16.7 ND 74 47-138 <br /> gamma-BHC(Lindane) 13.6 1.7 16.7 ND 82 38-144 <br /> 4,4'-DDT 23.9 3.3 16.7 4.83 114 41-157 <br /> Dieldrin 16.9 1.0 16.7 ND 101 46-155 <br /> Endrin 18.7 3.3 16.7 ND 112 34-149 <br /> Heptachlor 10.1 1.7 16.7 ND 60 36-155 <br /> Surrogate:Tetrachloro-meta-xylene 7.70 20.8 37 46-139 QS-4 <br /> Surrogate:Decachlorobiphenyl 14.7 20.8 71 52-141 <br /> Matrix Spike Dup(2105935-MSD1) Source:21G1076-05 Prepared&Analyzed:07/20/21 <br /> Aldrin 10.7 1.0 gg/kg 16.7 ND 64 47-138 15 35 <br /> gamma-BHC(Lindane) 11.9 1.7 16.7 ND 71 38-144 14 35 <br /> 4,4'-DDT 16.3 3.3 16.7 4.83 69 41-157 38 35 QR-1 <br /> Dieldrin 13.1 1.0 16.7 ND 79 46-155 26 35 <br /> Endrin 13.7 3.3 16.7 ND 82 34-149 31 35 <br /> Heptachlor 9.27 1.7 16.7 ND 56 36-155 8 35 <br /> Surrogate:Tetrachloro-meta-xylene 11.8 20.8 57 46-139 <br /> Surrogate:Decachlorobiphenyl 14.6 20.8 70 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 />