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r <br /> 110 2nd Avenue South, #D7, Pacheco,CA 94511 <br /> ' McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> 1 <br /> ' QC REPORT FOR EPA 8010/8020/EDB <br /> Date: 06/29/95-06/30/95 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> ' Sample MS MSD Spiked _ MS MSD <br /> I <br /> 1,1-DCE 0.0 8.8 9.4 10.0 88 94 6.6 <br /> ' Trichloroethene 0.0 8.3 8.8 10.0 83 88 5 8 <br /> EDB 0.0 8.3 8.9 10.0 83 89 7 0 <br /> Chlorobenzene 0.0 9.1 9.6 10.0 91 96 5.3 <br /> Benzene 0.0 10.1 11.2 10.0 101 112 10.3 <br /> Toluene 0.0 9.1 10.3 10.0 91 103 12.4 <br /> Chlorobz (PID) 0.0 9.5 10.2 10.0 95 102 7 1 <br />� 1 <br /> % Rec = (MS - Sample) I amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />