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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> 7CMMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> r• <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> ' Date 01/23/98 Matrix AIR <br /> ' Concentration (ug/kg,ul Recovery <br /> Analyte Sample Amount RPD <br /> 1# (85094) MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethel 0 109 0 105 0 100 0 109 105 3 7 <br /> ' Trichloroethene 1 0 92 0 95 0 100 0 92 95 3 2 <br /> EDB 1 0 95 0 98 0 100 0 f 95 98 3 1 <br /> IChlorobenzene 1 0 101 0 101 0 100 0 101 101 0 0 <br /> Benzene 1 0 99 0 101 0 100 0 99 101 2 0 <br /> ' Toluene I 0 100 0 101 0 100 0 100 101 1 0 <br /> ' 3 Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> 1 <br /> 1 <br />