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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> F-77PBELL ANALYTICAL INC. Tele:510-798-1620 Fax: 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date: 09/20/97 Matrix: Water <br /> Concentration (ug/kg,ul % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethel 0.0 100.0 97 . 0 100 100 97 3 . 0 <br /> Trichloroethene I 0. 0 83 .0 83 . 0 100 83 83 0 . 0 <br /> EDB 1 0. 0 95.0 89. 0 1.00 95 89 6 .5 <br /> IChlorobenzene 1 0. 0 97.0 93 . 0 100 97 93 4 .2 <br /> Benzene 1 0. 0 1.05.0 101. 0 100 , 105 101 3 . 9 <br /> Toluene 1 0. 0 101.0 100 . 0 100 101 100 1.0 <br /> t Rec. _ (MS - Sample} / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> i <br />