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CALIFORNIA LABORATORY SERVICES <br /> Page 18 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 /> Semivolatile Organic Compounds by EPA Method 8270C - Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CW00943-LUFT-DHS GCMS <br /> Matrix Spike(CW00943-MSI) Source:CWB0366-01 Prepared&Analyzed:02/13/13 <br /> Surrogate:Phenol-d6 1920 'ug/kg 2500 77 10-110 <br /> Surrogate:Nitrobenzene-0 1390 1670 83 23-120 <br /> Surrogate:2-Fluorobiphenyl 1370 1670 82 30-115 <br /> Surrogate:2,4,6-Tribromophenol 2200 2500 88 19-122 <br /> Surrogate:Terphenyl-&4 1680 1670 101 18-137 <br /> Matrix Spike Dup(CW00943-MSDI) Source:CWB0366-01 Prepared&Analyzed:02/13/13 <br /> Acenaphthene 1290 330 gg/kg 1670 ND 77 31-137 5 20 <br /> 1,4-Dichlorobenzene 1360 330 1670 ND 82 28-104 7 27 <br /> 2,4-Dinitrotoluene(2,4-DNT) 1660 330 1670 ND 100 28-105 5 45 <br /> N-Nitrosodi-n-propylamine 1450 330 1670 ND 87 41-126 5 38 <br /> Pyrene 1100 330 1670 ND 66 35-142 0.7 36 <br /> 1,2,4-Trichlorobenzene 1490 330 1670 ND 89 38-107 6 23 <br /> 4-Chloro-3-methylphenol 2580 330 2500 ND 103 26-103 5 33 <br /> 2-Chlorophenol 2060 330 2500 ND 82 25-102 6 45 <br /> 4-Nitrophenol 2550 830 2500 ND 102 11-114 5 45 <br /> Pentachlorophenol 2390 830 2500 ND 96 17-109 8 47 <br /> Phenol 2070 330 2500 ND 83 6-125 7 35 <br /> Surrogate:2-Fluorophenol 1990 2500 80 25-121 <br /> Surrogate:Phenol-d6 2050 2500 82 10-110 <br /> Surrogate:Nitrobenzene-d5 1480 1670 89 23-120 <br /> Surrogate:2-Fluorobiphenyl 1460 1670 87 30-115 <br /> Surrogate:2,4,6-Tribromophenol 2330 2500 93 19-122 <br /> Surrogate:Terphenyl-&4 1690 1670 102 18-137 <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 />