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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> j McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax: 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date: 04/15/97-04/17/97 Matrix: Water <br /> Concentration (ug/kg,ul % Recovery <br /> l Analyte I I Amount l RPD l <br /> l I Sample MS MSD I Spiked l MS MSD l <br /> l l I f t <br /> 11, 1-Dichloroethel 0. 0 116.0 109 .0 1 100 1 116 109 6 .2 1 <br /> lTrichloroethene 1 0.0 90.0 87.0 1 100 1 90 87 3 .4 1 <br /> 1EDB 1 0.0 106 .0 101.0 100 1 106 101 4 .8 1 <br /> 1Chlorobenzene 1 0.0 102 . 0 100 .0 , 100 1 102 100 2 .0 1 <br /> 1Benzene 1 0 .0 108 . 0 104 .0 l 100 1 108 104 3 . 8 1 <br /> 1Toluene 1 0 .0 106.0 106 .0 l 100 1 106 106 0.0 1 <br /> k <br /> Rec_ _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> .l <br /> �I <br /> I <br /> :I <br /> i <br />