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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 10/24/97 Matrix WATER <br /> Concentration (ug/kg,ul Recovery <br /> Analyte I Sample Amount I RPD <br /> I# (79443) MS MSD Spiked I MS MSD <br /> I I I I 1 <br /> 11, 1-Dichloroethel 0 109 0 105 0 1 100 0 4 109 105 3 7 1 <br /> [Trichloroethene 1 0 92 0 95 0 1 100 0 E 92 95 3 2 I <br /> [EDB 1 0 95 0 98 0 I 100 0 ! 95 98 3 1 I <br /> IChlorobenzene I 0 101 0 101 0 I 100 0 I 101 101 0 0 <br /> 1Benzene 1 0 99 0 101 0 1 100 0 1 99 101 2 0 1 <br /> IToluene 1 0 100 0 101 0 I 100 0 1 100 101 1 0 <br /> I I I I <br /> Rec = (MS - Sample} / amount spiked x 100 <br /> RPD - (MS - msn) / (MS + MSD) x 2 x 100 <br />