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+ McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR EPA 8010/8020/EDB <br /> Date: 06/14/95 Matrix: Water <br /> Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 1,1--DCE 0.0 9.3 10.3 10.0 93 103 10.2 <br /> Trichloroethene 0.0 8.7 9.3 10.0 87 93 6.7 <br /> EDB 0.0 7.4 9.2 10.0 74 92 21.7 <br /> Chlorobenzene 0.0 10.7 10.8 10.0 107 108 0.9 <br /> Benzene N/A N/A N/A N/A N/A N/A N/A <br /> Toluene N/A N/A N/A N/A N/A N/A N/A <br /> Chlorobz (PID) N/A N/A N/A N/A N/A N/A N/A <br /> % Rec = (MS - Semple) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />