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CALIFORNIA LABORATORY SERVICES <br /> Page 25 of 31 02/08/13 12:06 <br /> Tetra Tech Geo Project: VOP-TRACY <br /> 2969 Prospect Park Drive,Suite 100 Project Number: 117-7059009 CLS Work Order#:CWB0016 <br /> Rancho Cordova,CA 95670 Project Manager: Tim Costello COC#:2 COCs <br /> Gas/BTEX by GC PID/FID - Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CW00685-EPA 5030 Soil GC <br /> Blank(CW00685-BLKI) Prepared:02/01/13 Analyzed:02/03/13 <br /> Gasoline ND 200 µg/kg <br /> Surrogate:o-Chlorotoluene(Gas) 15.2 If20.0 76 65-135 <br /> LCS(CW00685-BS1) Prepared:02/01/13 Analyzed:02/03/13 <br /> Gasoline 986 200 gg/kg 1000 99 65-135 <br /> Surrogate:o-Chlorotoluene(Gas) 19.1 20.0 96 65-135 <br /> LCS Dup(CW00685-BSDI) Prepared:02/01/13 Analyzed:02/03/13 <br /> Gasoline 1020 200 µg/kg 1000 102 65-135 3 30 <br /> Surrogate:o-Chlorotoluene(Gas) 18.0 If20.0 90 65-135 <br /> Matrix Spike(CW00685-MS1) Source:CWB0020-13 Prepared:02/01/13 Analyzed:02/03/13 <br /> Gasoline 655 200 gg/kg 1000 102 55 63-124 QM-5 <br /> Surrogate:o-Chlorotoluene(Gas) 16.4 1120.0 82 65-135 <br /> Matrix Spike Dup(CW00685-MSDI) Source:CWB0020-13 Prepared:02/01/13 Analyzed:02/03/13 <br /> Gasoline 485 200 µg/kg 1000 102 38 63-124 30 35 QM-5 <br /> Surrogate:o-Chlorotoluene(Gas) 16.2 If20.0 81 65-135 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />