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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 925-798-1620 Fax 925-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date 03/03/99-03/04/99 Matrix WATER <br /> Concentration (ug/kg,u1 Recovery <br /> Analyte I Sample I Amount RPD 1 <br /> I (#04112) MS MSD Spiked I MS MSD 1 <br /> 11,1-Dichloroethel 0 116 108 1 100 1 116 108 7 1 <br /> ITrichloroethene 1 0 115 116 1 100 1 115 116 0 9 1 <br /> 1EDB I N/A N/A N/A I N/A N/A N/A N/A <br /> IChlorobenzene 1 0 100 102 I 100 1 100 102 2 0 1 <br /> 1Benzene 1 0 105 106 1 100 1 105 106 0 9 1 <br /> IToluene 1 0 112 112 1 100 1 11.2 112 0 0 1 <br /> 1 1 <br /> t Rec = (MS - Sample) / amount spiked x 1D0 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />