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' QAD'uanterra <br />' Environmental <br /> Services6ABORATORY CONTROL SAMPLE REPORT <br />' Volatile Organics by GC <br /> Project: 094903 <br />' Category: 602-A Aromatic Volatile Organics <br /> Test: 8020-BTX-A <br /> Matrix: AQUEOUS <br />' QC Lot: 08 SEP 97-111 QC Run. 08 SEP 97-11A <br /> Concentration Units: ug/L <br /> Concentration Accuracy(%) <br /> Analyte Spiked Measured LCS Limits <br /> Benzene 10.0 9.52 95 75-122 <br /> Toluene 10.0 10.2 102 76-117 <br />' Ethylbenzene 10.0 10.8 108 77-120 <br /> Xylenes total ) 30.0 31.7 106 72-128 <br /> 1,3-Dick orobenzene 10.0 9.82 98 74-123 <br /> a,a,a-Trzfluorotoluene 20.0 19.2 96 78-126 <br /> 1 <br /> 1 <br /> 1 <br /> 0 <br />' Calculations are performed before rounding to avoid round-off errors in calculated results. <br />