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I <br /> 110 2nd Avenue South,#D7, 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 08/03/97-08/04/97 Matrix Water <br />' 1 Concentration (ug/kg,u1 1 % Recovery l <br /> Analyte f Amount I RPD 1 <br /> Sample MS MSD I Spiked I MS MSD 1 <br /> 11, 1-Dichloroethel 0 0 100 0 97 0 1 100 1 100 97 3 0 l <br />' ITrichloroethene 1 0 0 83 0 B3 0 1 100 1 83 83 0 0 1 <br /> 1EDB 1 0 0 95 0 89 0 1 100 1 95 89 6 5 1 <br /> 1Chlorobenzene 1 0 0 97 0 93 0 1 100 1 97 93 4 2 1 <br />' [Benzene 1 0 0 105 0 101 0 1 100 1 105 101 3 9 1 <br /> Toluene 1 0 0 101 0 100 0 1 100 1 101 100 1 0 1 <br /> 1 I I I I <br />' t Rec = (MS - Sample) / amount Spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />