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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> 1 <br />' QC REPORT FOR VOCs {EPA 8240/8260 ) <br />' Date 09/26/97 Matrix Water <br />' I I Concentration (ug/kg,ul I Recovery <br /> Analyte I Sample I Amount I RPD 1 <br /> 1# (80836) MS MSD I Spiked I MS MSD I <br /> 11, 1-Dichloroethel 0 0 1.00 0 97 0 1 100 I 100 97 3 0 1 <br /> ITrachloroethene 1 0 0 83 0 83 0 1 100 I 83 83 0 0 1 <br /> IEDB 1 0 0 95 0 89 0 1 100 I 95 89 6 5 1 <br /> IChlorobenzene I 0 0 97 0 93 0 1 100 I 97 93 4 2 1 <br /> IBenzene 1 0 0 105 0 101 0 1 100 I 105 101 3 9 1 <br /> I Toluene 1 0 0 1.01. 0 100 0 1 100 I 101 100 1 0 1 <br /> I I I I <br />' 6 Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />