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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br />' MCCAMP$ELL ANALYTICAL INC Tele 925-798-1620 Fax 925-798-1622 <br /> 1 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br />' Date 08/17/98-08/18/98 Matrix WATER <br />' Concentration (ug/kg,ul t Recovery <br /> Analyte Sample I Amount RPD <br /> j 1 (#93472) MS MSD Spiked ! MS MSD <br /> 1 <br /> 11,1-Dichloroethel 0 83 87 100 83 87 5 1 <br /> Trichloroethene 1 0 79 82 100 79 82 3 4 <br />' EDB I 0 97 100 100 97 100 2 9 <br /> IChlorobenzene 0 96 99 1 100 96 99 3 1 <br /> Benzene 0 93 96 1 100 93 96 3 2 j <br />' Toluene 0 93 97 100 1 93 97 3 5 <br />' 6 Rec {MS - sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 X 100 <br /> 1 <br /> 1 <br />