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r�uanterra <br /> Envrronmen[al <br />' DUPLICATE CONTROL SAMPLE REPORT Se`"es <br /> ' latile Organics by GC/MS <br /> 4iiject: 096382 <br /> 1 Category: 8260-A 8260 Aqueous <br /> Testcode 8260-TCL-LL-A q Method- 8260 <br /> Matrix: AQUEOUS Concentration Units: ug/L <br /> QC Lot: 11 DEC 97-3A Analyzed Date. 11 DEC 97 Time: 13:02 <br /> L Analyte Spiked <br /> ---------C-------Measured----- Accuracy Pre(RPDs)on <br /> DCS1 DCS2 DCS1 DCS2 Limits DCS Limit <br /> 1,1-Dichloroethene 10 0 9.25 8.99 92 90 78-120 2.9 12 <br /> Benzene 10.0 9.98 14. 1 100 101 78-109 0.90 10 <br /> Trichloroethene 10 0 9.87 9.74 99 97 77-108 1.3 13 <br /> Toluene 10.0 9 90 9.94 99 99 76-106 0.40 10 <br /> Chlorobenzene 10 0 9 66 9.89 97 99 77-106 2.4 10 <br /> ---------Concentration-------- <br /> Surrogate Spiked -------Measured----- Accuracy(%) <br /> DCS1 DCS2 DCS1 DCS2 Limits <br /> 1,2-Dichloroethane-d4 10.0 10 9 10.7 109 107 75-121 <br />' Toluene-d8 10 0 10 2 10.2 102 102 85-111 <br /> 4-Bromofluorobenzene 10.0 8 95 9. 10 90 91 81-117 <br />' Calculations are performed before rounding to avoid round-off errors in calculated results. <br />