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110 2nd Avenue South,#D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR VOLS (EPA 8240/8260 } <br /> Date 12/06/97 Matrix WATER <br /> I Concentration (ug/kg,ul I p Recovery i <br /> Analyte l Sample Amount RPD <br /> l 1##(83808) MS MSD I Spiked I MS MSD l <br /> 1 I ! <br /> 11, 1-Dichloroethel 0 109 0 105 0 100 0 109 105 3 7 <br /> ITrichloroethene 1 0 92 0 95 0 l 100 0 I 92 95 3 2 1 <br /> IEDB l 0 95 0 98 0 l 100 0 I 95 98 3 1 1 <br /> 1Chlorobenzene l 0 101 0 101 0 1 100 0 l 101 101 0 0 <br /> lBenzene I 0 99 0 101 0 I 100 0 1 99 101 2 0 1 <br /> Toluene 0 100 0 101 0 1 100 0 1 100 101 1 0 1 <br /> 1 I I <br /> lie <br /> $ Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / {MS + MSD) x 2 x 100 <br /> 1 <br />