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110 2nd Avenue South, #137,Pacheco,CA 94553 <br />' McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date 12/18/97 Matrix WATER <br />' 1 i Concentration (ug/kg,u1 Recovery E <br /> Analyte 1 Sample 1 Amount RPD <br /> 1 # (84217) MS MSD i Spiked I MS MSD <br /> 11, 1-Dichloroethel 0 109 0 105 0 100 D 1 109 105 3 7 1 <br /> (Trichloroethene 1 0 92 0 95 0 1 100 0 1 92 95 3 2 , <br />' 1ED13 1 0 95 0 98 0 1 100 0 k 95 98 3 1 1 <br /> 1Chlorobenzene 1 0 101 0 101 0 100 0 1 101 101 0 0 1 <br /> 4Benzene 1 0 99 D 101 0 1 100 0 1 99 101 2 0 <br />' 1Toluene j 0 100 0 101 0 1 100 D k 100 101 1 0 <br /> 1 1 I <br /> ' Rec = (MS - Sample) / amount spiked x 100 <br /> RPD (MS MSD) / (MS + MSll) x 2 x 100 <br /> 1 <br /> 1 <br /> 1 <br />