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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 /> I <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br />' Date: 08/20/97 Matrix: Soil <br /> I Concentration (ug/kg,ul I % Recovery <br /> Analyte I Sample Amount RPD <br /> I # (75867) MS MSD I Spiked MS MSD <br /> I I <br /> I1, 1-Dichloroethel 0.0 100 .0 97 .0 100 100 97 3 .0 <br />' ITrichloroethene I 0.0 83 .0 83 . 0 100 83 83 0 .0 <br /> IEDB I 0 .0 95.0 89. 0 I 100 95 89 6 .5 <br /> IChlorobenzene 0 .0 97 .0 93 . 0 100 97 93 4 .2 <br /> ISenzene 0 .0 105 .0 101 . 0 I 100 I 105 101 3 .9 <br />' IToluene 0 .0 101.0 100 .0 I 100 I 101 100 1.0 <br /> I ! <br /> W Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />