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CALIFORNIA LABORATORY SERVICES <br /> Page 9 of 14 02/15/13 15:58 <br /> Tetra Tech Geo Project: VOP-TRACY <br /> 2969 Prospect Park Drive,Suite 100 Project Number: 117-7059009 CLS Work Order#:CWB0402 <br /> Rancho Cordova,CA 95670 Project Manager: Tim Costello COC#: <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> GW-3(CWB0402-03)Water Sampled:02/12/13 13:40 Received:02/12/13 16:25 <br /> Methylene chloride ND 0.50 µg/L 1 CW00978 02/13/13 EPA 8260B <br /> 4-Methyl-2-pentanone ND 10 " <br /> Methyl tert-butyl ether ND 0.50 " <br /> Naphthalene ND 0.50 " <br /> n-Propylbenzene ND 0.50 " <br /> Styrene ND 0.50 " <br /> 1,1,1,2-Tetrachloroethane ND 0.50 " <br /> 1,1,2,2-Tetrachloroethane ND 0.50 " <br /> Tetrachloroethene ND 0.50 " <br /> Toluene 0.61 0.50 " <br /> 1,2,3-Trichlorobenzene ND 0.50 " <br /> 1,2,4-Trichlorobenzene ND 0.50 " <br /> 1,1,1-Trichloroethane ND 0.50 " <br /> 1,1,2-Trichloroethane ND 0.50 " <br /> Trichloroethene ND 0.50 " <br /> Trichlorofluoromethane ND 0.50 " <br /> 1,2,3-Trichloropropane ND 0.50 " <br /> 1,2,4-Trimethylbenzene ND 0.50 " <br /> 1,3,5-Trimethylbenzene ND 0.50 " <br /> Vinyl chloride ND 1.0 " <br /> Xylenes(total) 3.2 1.0 " <br /> Surrogate:1,2-Dichloroethane-d4 119% 66-135 <br /> Surrogate: Toluene-d8 82% 72-125 " <br /> Surrogate:4-Bromofluorobenzene 107% 73-125 " <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 />