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CbCurtis&Tompkins,Ltd. , <br /> Batch QC Report <br /> Purgeable Organics by GC/MS <br /> Lab #: 260200 Location: DVI-Burn Pit <br /> Client: URS Corporation Prep: EPA 5030B <br /> Project#: 17327022 Analysis: EPA 82608 <br /> Matrix: Water Batch#: 214977 <br /> Units: ug/L Analyzed: 09/02/14 <br /> Diln Fac: 1.000 <br /> Type: BS Lab ID: QC755853 <br /> Analyte Spiked Result %REC Limits <br /> 1,1-Dichloroethene 12.50 14.10 113 65-134 <br /> Benzene 12.50 13.26 106 80-124 <br /> Trichloroethene 12.50 12.52 100 80-120 <br /> Toluene 12.50 12.60 101 80-122 <br /> Chlorobenzene 12.50 13.34 107 80-120 <br /> Surrogate %REC Limits i <br /> Dibromofluoromethane 114 77-136 <br /> 1,2-Dichloroethane-d4 103 75-139 <br /> Toluene-d8 98 80-120 <br /> Bromofluorobenzene 94 80-120 <br /> Type: BSD Lab ID: QC755854 <br /> Analyte Spiked Result %REC Limits RPD Lim <br /> 1,1-Dichloroethene 12.50 12.98 104 65-134 8 20 <br /> Benzene 12.50 13.17 105 80-124 1 20 <br /> Trichloroethene 12.50 12.15 97 80-120 3 20 <br /> Toluene 12.50 12.39 99 80-122 2 20 <br /> Chlorobenzene 12.50 13.20 106 80-120 1 20 <br /> Surrogate %REC Limits ' <br /> Dibromofluoromethane 112 77-136 <br /> 1,2-Dichloroethane-d4 101 75-139 <br /> Toluene-d8 96 80-120 ' <br /> Bromofluorobenzene 93 80-120 <br /> 1 <br /> RPD= Relative Percent Difference <br /> Page 1 of 1 19.0 <br /> 29 of 242 <br />