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CALIFORNIA LABORATORY SERVICES <br />Committed. Responsive. Flexible. <br />'age 19 of 20 %.P 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 />malyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 2105965 - LUFT-DHS GCNV <br />5.88 <br />1.0 gg/kg <br />8.33 <br />ND <br />71 <br />46-139 <br />LCS (2105965 -BSI) <br />7.11 <br />gamma -BHC (Lindane) <br />Prepared & Analyzed: 07/21/21 <br />1.7 <br />85 <br />52-141 <br />Surrogate: Decachlorobiphenyl <br />6.82 <br />Source: 21G1148-80 <br />yg/kg 8.33 82 <br />52-141 <br />07/21/21 <br />3.3 <br />LCS Dup (2105965-BSD1) <br />18.3 <br />1.0 gg/kg <br />Prepared & Analyzed: 07/21/21 <br />ND <br />110 <br />47-138 <br />Aldrin <br />16.5 <br />1.0 <br />gg/kg 16.7 99 <br />47-132 <br />5 <br />30 <br />gamma -BHC (Lindane) <br />16.8 <br />1.7 <br />16.7 101 <br />56-133 <br />4 <br />30 <br />4,4' -DDT <br />19.1 <br />3.3 <br />16.7 114 <br />46-137 <br />3 <br />30 <br />Dieldrin <br />18.0 <br />1.0 <br />16.7 108 <br />44-143 <br />2 <br />30 <br />Endrin <br />17.7 <br />3.3 <br />16.7 106 <br />30-147 <br />0.4 <br />30 <br />Heptachlor <br />15.1 <br />1.7 <br />16.7 91 <br />33-148 <br />7 <br />30 <br />Surrogate: Tetrachloro-meta-xylene <br />5.88 <br />1.0 gg/kg <br />8.33 <br />ND <br />71 <br />46-139 <br />Surrogate: Decachlorobiphenyl <br />7.11 <br />gamma -BHC (Lindane) <br />8.33 <br />1.7 <br />85 <br />52-141 <br />Matrix Spike (2105965-MS1) <br />38-144 <br />Source: 21G1148-80 <br />Prepared & <br />Analyzed: <br />07/21/21 <br />3.3 <br />Aldrin <br />18.3 <br />1.0 gg/kg <br />16.7 <br />ND <br />110 <br />47-138 <br />gamma -BHC (Lindane) <br />19.0 <br />1.7 <br />16.7 <br />ND <br />114 <br />38-144 <br />4,4' -DDT <br />18.9 <br />3.3 <br />16.7 <br />ND <br />113 <br />41-157 <br />Dieldrin <br />20.3 <br />1.0 <br />16.7 <br />ND <br />122 <br />46-155 <br />Endrin <br />20.4 <br />3.3 <br />16.7 <br />ND <br />122 <br />34-149 <br />Heptachlor <br />15.5 <br />1.7 <br />16.7 <br />ND <br />93 <br />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 <br />19.3 <br />1.0 gg/kg <br />16.7 <br />ND <br />116 <br />47-138 <br />6 <br />35 <br />gamma -BHC (Lindane) <br />20.1 <br />1.7 <br />16.7 <br />ND <br />121 <br />38-144 <br />6 <br />35 <br />4,4' -DDT <br />18.7 <br />3.3 <br />16.7 <br />ND <br />112 <br />41-157 <br />1 <br />35 <br />Dieldrin <br />21.2 <br />1.0 <br />16.7 <br />ND <br />127 <br />46-155 <br />4 <br />35 <br />Endrin <br />21.3 <br />3.3 <br />16.7 <br />ND <br />128 <br />34-149 <br />5 <br />35 <br />Heptachlor <br />16.6 <br />1.7 <br />16.7 <br />ND <br />100 <br />36-155 <br />7 <br />35 <br />Surrogate: Tetrachloro-meta-xylene <br />15.4 <br />20.8 <br />74 <br />46-139 <br />Surrogate: Decachlorobiphenyl <br />18.7 <br />20.8 <br />90 <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 />