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fo"banterra <br /> DUPLICATE CONTROL SAMPLE REPORT se`"°es <br /> Volatile Organics by GC/MS <br /> Project: 094062 <br /> Category: 8260STO-A 8260, Aqueous <br /> Static limits - Do not up-date <br /> Testcode: 8260-LIN-STD-A Method: 8260A <br /> Matrix: AQUEOUS Concentration Units. ug/L <br /> QC Lot: 14 JUL 97-4A Analyzed Date: 14 JUL 97 Time: 15:23 <br /> ---Concentration-------- Accuracy Precision <br /> Analyte Spiked -------Measured----- M ( <br /> RPD) <br /> DCS1 DCS2 DCS1 DCS2 Limits DCS Limit <br /> 1,1-Dichloroethene 10.0 9.69 10.0 97 100 75-113 3.1 20 <br /> Benzene 10.0 9.52 9.75 95 98 78-116 2.4 20 <br /> Trichloroethene 10.0 8.46 8.94 85 89 70-110 5.5 20 <br /> Toluene 10.0 9.18 9.60 92 96 78-126 4.5 20 <br /> Chlorobenzene 10.0 9.04 9.43 90 94 81-115 4.2 20 <br /> ---------Concentration-------- <br /> Surrogate Spiked -------Measured----- Accuracy <br /> %) <br /> DCS1 DCS2 DCS1 DC12) Limits <br /> 1,2-Dichloroethane-d4 10 9.5 9.4 95 94 70-120 <br /> Toluene-d8 10 9.4 9.1 94 91 88-110 <br /> 4-Bromofluorobenzene 10 9.8 9.8 98 98 86-115 <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br />