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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. <br /> r Tele:510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR VOCs -{EPA 6240/8260 ) <br /> Date: 09/13./98-09/12/98 Matrix: WATER <br /> I Concentration (ug/kg,ul l Recovery <br /> Analyte I Sample I Amount l RPD l <br /> I (#94788) MS MSD I Spiked MS MSD l <br /> 1 I l <br /> 11, 1-Dichloroethel 0 82 82 l 100 I 82 82 0 .4 I <br /> ITrichloroethene I 0 76 79 I 100 i 76 79 4 .4 <br /> (EDB I N/A N/A N/A I N/A I N/A N/A N/A <br /> IChlorobenzene l 0 93 93 I 100 l 93 93 0 .2 <br /> (Benzene I 0 88 89 l 100 I 68 89 1.2 l <br /> IToluene I 0 89 93 l 100 I 89 93 4 .1 l <br /> Rec. (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />