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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 /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date 10/21/98-10/22/98 Matrix WATER <br /> 1 Concentration (ug/kg,ul I Recovery <br /> Analyte Sample I Amount I RPD <br /> i MS MSD I Spiked I MS MSD 1 <br /> I I I I 1 <br /> 11, 1-Dachloroethel 0 91 97 I 100 1 91 97 5 9 <br /> ITrichloroethene 1 0 81 83 I 100 i 81 83 2 4 1 <br /> 1EDE I N/A N/A N/A I N/A 1 N/A N/A N/A I <br /> lChlorobenzene ( 0 99 99 I 100 I 99 99 0 4 I <br /> 1Benzene 1 0 92 94 1 100 I 92 94 1 8 1 <br /> IToluene I 0 97 99 1 100 I 97 99 1 5 1 <br />' I 1 1 <br /> Rec (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />