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u 4,1 <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 10/03/97-10/06/97 Matrix Water <br /> Concentration (ug/kg,ul l % Recovery l <br /> l Analyte l Sample l Amount l RPD l <br /> 4 (80837) MS MSD l Spiked l MS MSD l <br /> I I I I <br /> 11, 1-Dichloroethel 0 0 100 0 97 0 l 100 100 97 3 0 l <br /> (Trichloroethene l 0 0 83 0 B3 0 l 100 l 83 83 0 0 <br /> (EDB 1 0 0 95 0 89 0 l 100 l 95 89 6 5 f <br /> lChlorobenzene 1 0 0 97 0 93 0 l 100 l 97 93 4 2 l <br /> Benzene 1 0 0 105 0 101 0 l 1.00 l 105 101 3 9 l <br /> (Toluene l 0 0 101 0 100 0 l 100 l 101 100 1 0 l <br /> t Rec = (MS - Sample) / amoune spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> • <br />