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Em7co <br /> AMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> Tele 510-798-1620 fax 510-798-1622 <br />' QC REPORT FOR VOCs {EPA 8240/8260 ) <br />' Date 05/29/98-06/01/98 Matrix SOIL <br />' I Concentration (ug/kg,ul J Recovery <br /> Analyte J Sample J Amount I RPD f <br />' I 1 (487566) MS MSD Spiked f MS MSD <br /> 11, 1-DschloroetheJ 0 89 81 100 89 81 9 4 <br />' JTrichloroethene 0 86 91 100 J 86 91 5 6 <br /> EDB 0 102 99 J 100 102 99 3 0 <br /> IChlorobenzene J 0 91 96 100 91 96 5 3 J <br />' JBenzene 0 93 99 100 J 93 99 6 3 <br /> Toluene 0 90 100 i 100 i 90 100 10 5 <br /> J <br />' f Rec (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br />