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