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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> IMcCAMPBELL ANALYTICAL INC• T Tele: 925-798-1620 Fax 925.798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> r <br /> Date 09/22/99-09/23/99 Matrix WATER <br /> Concentration (ug/kg,ul I Recovery <br /> Analyte Sample I Amount I RPD <br /> � (#19419) MS MSI] Spiked I MS MSD <br /> 11,1-Dichloroethel 0 120 128 1 100 120 128 6 5 f <br /> Trichloroethene 1 0 80 81. 1 100 80 81 1 2 <br /> EDB I N/A N/A N/A I N/A I N/A N/A N/A <br /> IChlorobenzene 1 0 110 110 1 100 1 110 110 0 0 <br /> Benzene 1 0 103 105 1 100 1 103 105 1 9 <br /> Toluene 1 0 98 98 100 1 98 98 0 0 <br /> V Rec = (MS - Sample) / amount spiked x 100 <br /> RPO (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br />