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cbCurtis &Tompkins.Ltd. <br /> Batch QC R�por_ <br /> Purgeable Organics ,by GC/MS <br /> , . <br /> Lab Lcc_�i ior_: JVI-Burr, Fit <br /> Client: URS Corporation Prep: EPA 50303 <br /> Project#: DVI-BP Analysis: EPA 82603 <br /> Matrix: Water Batch#: 174015 <br /> Units: ug/L Analyzed: 04/22/11 <br /> Diln Fac: 1 .000 <br /> Type: BS Lab ID: QC588682 <br /> Analyte Spiked <br /> 1, 1-Dichloroethene 25.00 23.82 95 65-138 <br /> Benzene 25.00 26. 61 106 80-124 <br /> Trichloroethene 25.00 21.25 85 78-122 <br /> Toluene 25.00 26.17 105 80-120 <br /> Chlorobenzene 25.00 26.76 107 80-120 <br /> ISurrogate -%REC Limits <br /> Dibromo£luoromethane 109 80-125 <br /> 1,2-Dichloroethane-d4 126 11-146 <br /> Toluene-d8 103 80-120 <br /> Bromofluorobenzene 95 80-120 <br /> Type: Lab QC588683 <br /> Analyte .Spiked ,.Result %REC Limits RPD..Lim.. . <br /> 1, 1-Dichloroethene 25.00 23.79 95 65-138 0 20 <br /> Benzene 25.00 27.22 109 80-124 2 20 <br /> Trichloroethene 25.00 22.21 89 78-122 4 20 <br /> Toluene 25.00 26.97 108 80-120 3 20 <br /> Chlorobenzene 25.00 27.38 110 80-120 2 20 <br /> Dibromofluoromethane 110 80-125 <br /> 1,2-Dichloroethane-d4 127 71-146 <br /> Toluene-d8 104 80-120 <br /> Bromofluorobenzene 95 80-120 <br /> RPD= Relative Percent Difference <br /> 'Page 1 of 1 _...., <br /> 1 11 of 35 <br />