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CALIFORNIA LABORATORY SERVICES <br /> Page 24 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 /> Extractable Petroleum Hydrocarbons by EPA Method 8015M- Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CW00694-CA LUFT-orb shaker <br /> Blank(CW00694-BLK1) Prepared&Analyzed:02/04/13 <br /> Diesel ND 1.0 mg/kg <br /> Motor Oil ND 1.0 " <br /> Surrogate:o-Terphenyl 0.542 0.500 108 65-135 <br /> LCS(CW00694-BS1) Prepared&Analyzed:02/04/13 <br /> Diesel 45.2 1.0 mg/kg 50.0 90 65-135 <br /> Surrogate:o-Terphenyl 0.610 0.500 122 65-135 <br /> LCS Dup(CW00694-BSD1) Prepared&Analyzed:02/04/13 <br /> Diesel 44.5 1.0 mg/kg 50.0 89 65-135 2 30 <br /> Surrogate:o-Terphenyl 0.549 110.500 110 65-135 <br /> Matrix Spike(CW00694-MSI) Source:CWB0020-13 Prepared&Analyzed:02/04/13 <br /> Diesel 40.3 10 mg/kg 50.0 ND 81 59-138 QRL-7 <br /> Surrogate:o-Terphenyl 0.650 110.500 130 65-135 <br /> Matrix Spike Dup(CW00694-MSD1) Source: CWB0020-13 Prepared&Analyzed:02/04/13 <br /> Diesel 39.8 10 mg/kg 50.0 ND 80 59-138 1 37 QRL-7 <br /> Surrogate:o-Terphenyl 0.648 110.500 130 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 />