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CALIFORNIA LABORATORY SERVICES <br /> Committed. Responsive. Flexible. <br /> Page 20 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 /> Blank(2105935-BLK1) Prepared&Analyzed:07/20/21 <br /> Aldrin ND 1.0 µg/kg <br /> alpha-BHC ND 1.7 <br /> beta-BHC ND 1.7 <br /> gamma-BHC(Lindane) ND 1.7 <br /> delta-BHC ND 1.7 <br /> Chlordane-technical ND 3.3 <br /> 4,4'-DDD ND 3.3 <br /> 4,4'-DDE ND 3.3 <br /> 4,4'-DDT ND 3.3 <br /> Dieldrin ND 1.0 <br /> Endosulfan I ND 1.7 " <br /> Endosulfan II ND 3.3 " <br /> Endosulfan sulfate ND 3.3 <br /> Endrin ND 3.3 <br /> Endrin aldehyde ND 3.3 <br /> Heptachlor ND 1.7 <br /> Heptachlor epoxide ND 1.7 <br /> Methoxychlor ND 17 <br /> Mirex ND 3.3 <br /> Toxaphene ND 20 <br /> Surrogate:Tetrachloro-meta-xylene 4.74 8.33 57 46-139 <br /> Surrogate:Decachlorobiphenyl 9.59 8.33 115 52-141 <br /> LCS(2105935-BS1) Prepared&Analyzed:07/20/21 <br /> Aldrin 17.2 1.0 µg/kg 16.7 103 47-132 <br /> gamma-BHC(Lindane) 16.5 1.7 16.7 99 56-133 <br /> 4,4'-DDT 22.6 3.3 16.7 135 46-137 <br /> Dieldrin 22.5 1.0 16.7 135 44-143 <br /> Endrin 23.4 3.3 16.7 141 30-147 <br /> Heptachlor 15.6 1.7 16.7 94 33-148 <br /> Surrogate:Tetrachloro-meta-xylene 4.50 8.33 54 46-139 <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 />