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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 /> I <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date 09/30/97 Matrix Water <br /> Concentration (ug/kg,ul j Recovery <br /> Analyte Sample Amount RPD <br /> # (80837) MS MSD f Spiked MS MSD <br /> 11, 1-Dzchloroethel 0 0 100 0 97 0 I 100 100 97 3 0 <br /> Trichloroethene 1 0 0 83 0 83 0 100 C 83 83 0 0 <br /> IEDB 1 0 0 95 0 89 0 100 I 95 89 6 5 <br /> IChlorobenzene 1 0 0 97 0 93 0 100 97 93 4 2 <br /> lBenzene 1 0 0 105 0 101 0 100 105 101 3 9 <br /> Toluene 0 0 101 0 100 0 I 100 101 100 1 0 <br /> Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / WS + MSD) x 2 x 100 <br />