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CALIFORNIA LABORATORY SERVICES <br /> Page 13 of 19 02/14/13 16:20 <br /> Tetra Tech Geo Project: VOP-TRACY <br /> 2969 Prospect Park Drive,Suite 100 Project Number: 117-7059009 CLS Work Order#:CWB0366 <br /> Rancho Cordova,CA 95670 Project Manager: Tim Costello COC#: <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 CW00921 -CA LUFT-orb shaker <br /> Blank(CW00921-BLK1) Prepared&Analyzed:02/13/13 <br /> Diesel ND 1.0 mg/kg <br /> Motor Oil ND 1.0 " <br /> Hydraulic Oil ND 1.0 " <br /> Mineral Oil ND 1.0 " <br /> Kerosene ND 1.0 " <br /> Surrogate:o-Terphenyl 0.494 0.500 99 65-135 <br /> LCS(CW00921-BS1) Prepared&Analyzed:02/13/13 <br /> Diesel 45.0 1.0 mg/kg 50.0 90 65-135 <br /> Surrogate:o-Terphenyl 0.569 0.500 114 65-135 <br /> LCS Dup(CW00921-BSD1) Prepared&Analyzed:02/13/13 <br /> Diesel 44.4 1.0 mg/kg 50.0 89 65-135 1 30 <br /> Surrogate:o-Terphenyl 0.619 110.500 124 65-135 <br /> Matrix Spike(CW00921-MSI) Source:CWB0338-01 Prepared&Analyzed:02/13/13 <br /> Diesel 48.4 1.0 mg/kg 50.0 ND 97 59-138 <br /> Surrogate:o-Terphenyl 0.625 110.500 125 65-135 <br /> Matrix Spike Dup(CW00921-MSDI) Source:CWB0338-01 Prepared&Analyzed:02/13/13 <br /> Diesel 39.8 1.0 mg/kg 50.0 ND 80 59-138 20 37 <br /> Surrogate:o-Terphenyl 0.475 110.500 95 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 />