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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: 01/03-01/04/94 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 1,1-DCE 0.0 4.0 4.2 5.0 80 84 4.9 <br /> Trichloroethene 0.0 4.6 5.1 5.0 92 102 10.3 <br /> EDB 0.0 4.1 4.1 5.0 82 82 0.0 <br /> Chlorobenzene 0.0 5.0 5.1 5.0 100 102 2.0 <br /> Benzene 0.0 5.0 5.7 5.0 100 114 13.1 <br /> Toluene 0.0 5.0 5.7 5.0 100 114 13.1 <br /> Chlorobz (PID) 0.0 5.0 5.7 5.0 100 114 13.1 <br /> % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />