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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: 02/16/95 Matrix Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 1,I-DCE 0.0 11.1 11.2 10 0 111 112 0.9 <br /> Trichloroethene 0.0 9.5 9.6 10.0 95 96 1.0 <br /> EDB 0.0 9.6 9.5 10.0 96 95 1.0 <br /> Chlorobenzene 0.0 10.3 10.2 10.0 103 102 1.0 <br /> Benzene 0.0 10.7 11.1 10 0 107 111 3.7 <br /> Toluene 0.0 10.2 9 6 10 0 102 96 6.1 <br /> Chlorobz (PID) 0.0 9 9 9.6 10 0 99 96 3.1 <br /> ' % Rec = (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />