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L <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Faac 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date: 07/30/98-07/31/98 Matrix': SOIL <br /> i <br /> Concentration (ug/kg,ul I . Recovery <br /> Analyte Sample ( Amount RPD <br /> 1 (#90424) MS MSD . ( Spiked I MS MSD <br /> 11,1-Dichloroethel 0 130 124 100 130 124 4 .7 <br /> Trichloroethene 1 0 73 69 100 73 69 5.6 <br /> EDB I N/A N/A N/A N/A I N/A N/A N/A <br /> lChlorobenzene 1 93 89 1 100 1 93 89 4.4 �. <br /> Benzene 0 105 99 1 100 105 995.9 <br /> Toluene 0 103 101 1 100 1 103 101, 2 .0 <br /> Rec. _ (MS - Sample) / amount spiked X 100 <br /> ' - RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> i <br /> fj <br /> . V . <br />