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At_;.ErLseco <br />.«A..-GC,..a... <br />DUPLICATE CONTROL SAMPLE REPORT <br />Volatile Organics by GC <br />Calculations are performed before rounding to avoid round -off errors in calculated results. <br />u <br />Concentration <br />Accuracy <br />Precision <br />Analyte <br />Spiked <br />Measured <br />Average(%) <br />(RPD) <br />DCS1 <br />DCS2 <br />AVG <br />DCS <br />Limits <br />DCS Limit <br />Category: 601-A <br />Matrix: AQUEOUS <br />QC Lot: 21 OCT 89-38A <br />Concentration Units: ug/L <br />1,1-Dichloroethane <br />5.0 <br />4.85 <br />4.81 <br />4.83 <br />97 <br />70-138 <br />0.8 <br />24 <br />Chloroform <br />5.0 <br />4.29 <br />4.24 <br />4.26 <br />85 <br />83-124 <br />1.2 <br />18 <br />Bromodichloromethane <br />10.0 <br />8.72 <br />8.49 <br />8.60 <br />86 <br />78-132 <br />2.7 <br />21 <br />Trichloroethene <br />5.0 <br />4.78 <br />4.62 <br />4.70 <br />94 <br />82-122 <br />3.4 <br />16 <br />Chlorobenzene <br />5.0 <br />4.69 <br />4.29 <br />4.49 <br />90 <br />80-126 <br />8.9 <br />19 <br />Category: 602-A <br />Matrix: AQUEOUS <br />QC Lot: 25 OCT 89-11A <br />Concentration Units: ug/L <br />Benzene <br />5.0 <br />4.93 <br />5.01 <br />4.97 <br />99 <br />82-112 <br />1.6 <br />11 <br />Toluene <br />5.0 <br />4.93 <br />5.00 <br />4.96 <br />99 <br />81-114 <br />1.4 <br />13 <br />1,3 -Dichlorobenzene <br />5.0 <br />4.76 <br />4.83 <br />4.80 <br />96 <br />68-124 <br />1.5 <br />13 <br />IW Ethyl benzene <br />5.0 <br />5.03 <br />5.23 <br />5.13 <br />103 <br />73-117 <br />3.9 <br />11 <br />Xylenes (total) <br />15.0 <br />15.5 <br />15.7 <br />15.6 <br />104 <br />75-120 <br />1.3 <br />10 <br />Calculations are performed before rounding to avoid round -off errors in calculated results. <br />u <br />