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CALIFORNIA LABORATORY SERVICES <br />Committed. Responsive. Flexible. <br />Page 15 of 22 %.P 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 <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />S17B-S20B (21G1076-70) Soil Sampled: 07/19/2110:42 Received: 07/19/2115:30 <br />Mirex ND 3.3 pg/kg 1 2105935 07/20/21 EPA 8081A <br />Toxaphene ND 20 " " " " " <br />Surrogate: Decachlorobiphenyl 69% 52-141 <br />Surrogate: Tetrachloro-meta-xylene 55% 46-139 <br />S21B-S24B (21G1076-75) Soil Sampled: 07/19/2111:53 Received: 07/19/2115:30 <br />4,4' -DDD <br />ND <br />3.3 µg/kg 1 2105935 07/20/21 07/20/21 EPA 8081A <br />4,4' -DDE <br />ND <br />3.3 " <br />4,4' -DDT <br />ND <br />3.3 <br />Aldrin <br />ND <br />1.0 " <br />alpha -BHC <br />ND <br />1.7 <br />beta -BHC <br />ND <br />1.7 " <br />Chlordane -technical <br />ND <br />3.3 <br />delta -BHC <br />ND <br />1.7 <br />Dieldrin <br />ND <br />1.0 <br />Endosulfan I <br />ND <br />1.7 <br />Endosulfan II <br />ND <br />3.3 <br />Endosulfan sulfate <br />ND <br />3.3 <br />Endrin <br />ND <br />3.3 " <br />Endrin aldehyde <br />ND <br />3.3 <br />gamma -BHC (Lindane) <br />ND <br />1.7 " <br />Heptachlor <br />ND <br />1.7 <br />Heptachlor epoxide <br />ND <br />1.7 " <br />Methoxychlor <br />ND <br />17 <br />Mirex <br />ND <br />3.3 <br />Toxaphene <br />ND <br />20 <br />Surrogate: Decachlorobiphenyl <br />Surrogate: Tetrachloro-meta-xylene <br />72% 52-141 <br />44% 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 />QS -4 <br />