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1 Y <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 04/30/98 Matrix WATER <br />' I Concentration (ug/kg,ul I % Recovery <br /> Analyte I Sample I Amount I RPD <br />' j (V488-935) MS MSD I Spiked I MS MSD <br /> 11, 1-Dichloroethel 0 91 94 100 91 94 3 2 <br />' Trichloroethene 1 0 86 90 f 100 I 86 90 4 5 <br /> EDB I N/A N/A N/A N/A N/A N/A N/A <br /> IChlorobenzene 1 0 108 111 100 108 111 2 7 <br />' Benzene I 0 109 116 100 I 109 116 6 2 <br /> Toluene 0 108 111 100 108 111 2 7 <br />' i Rec (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> 1 <br /> 1 <br />