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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele: 925.798-1620 Fax: 925-798-1622 <br /> QC REPORT FOR EPA 8010/8020/EDB <br /> Date: 08/04/99-08/05/99 Matrix: WATER <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> MS MSD Spiked MS MSD <br /> 11, 1-DCE 0. 0 9.7 8.9 10.0 97 89 8 .6 <br /> 1Trictlloroethene 1 0. 0 9.'_ 8 .4 1 10 .0 1 91 84 8. 0 1 <br /> 1EDB 1 I4/A N/A N/A 1 N/A 1 N/A N/A N/A 1 <br /> 1Chlorobenzene 1 0.0 9.5 9.1 1 10.0 1 95 91 4 .3 1 <br /> 1 1 1-1 1 <br /> i Benzene 1 IST/A NIA N/A 1 N/A 1 N/A N/A N/A 1 <br /> 1Toluene 1 N/A N/A N/A 1 N/A 1 N/A N/A N/A 1 <br /> 1Ch1orobz (PID) 1 I\T/A N/A N/A 1 N/A 1 N/A N/A N/A 1 <br /> 4 Rec. _ (N.S - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS . MSD) x 2 x 100 <br />