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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 /> QC REPORT FOR VOCs (EPA 8240/8260 l <br /> Date: 08/22/97 Matrix: Water <br /> Concentration (ug/kg,ul I % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethel 0.0 100 .0 97 .0 100 I. 100 97 3 .0 <br /> Trichloroethene 1 0.0 83 .0 83 .0 f 1.00 83 83 0 .0 <br /> (EDB I 0.0 95 .0 89.0 100 I 95 89 6 .5 <br /> IChlorobenzene 1 0.0 97.0 93 .0 100 97 93 4 .2 <br /> (Benzene I 0 .0 105 .0 101.0 100 105 101 3 .9 <br /> Toluene I 0.0 101.0 100. 0 100 101 100 1 .0 <br /> l <br /> % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> C <br />