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110 grid Avenue South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL AN INC. Tele: 925-798-1620 Fax: 925-798-1622 <br /> 1 <br /> QC REPORT FOR EPA 8010/8020/EDB <br /> Date: 08/04/99-08/05/99 I✓atrix: WATER <br /> Concentration {ug/L) Recovery <br /> P-nalyte I Amount RPD <br /> MS MSD Spiked I MS MSD <br /> I � I <br /> 11, 1-DCE 0.0 9. 7 8 .9 I 10 .0 97 89 8 .6 <br /> 'ITrichlorcethene I 0 .0 9 .1 8 .4 I 10 .0 I 91 84 8.0 <br /> J EDB I N/A N/A N/A I N/A I N/A N/A N/A I <br /> IChlorobenzene I 0. 0 9.5 9. 1 I 10 .0 I 95 91 4 .3 ] <br /> I II I <br /> (Benzene I N/A N/P. N/A I N/A I N/A N/A N/A <br /> (Toluene I N/A N/A N/A I N/A I N/A N/A N/A I <br /> IChlorobz (PID) I N/A N/A N/A I N/A N/A N/A N/A <br /> i I 1 <br /> t Rec. ws - Sample) / amount eriked x 100 <br /> RPl) (MS - MSA) / (M5 + MSD) x 2 x 100 <br />