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110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele: 510-798-1620 Fax:510-798-1622 <br />' QC REPORT FOR VOCs (EPA 8240/8260 ) <br />' Date: 09/09/97-09/10/97 Matrix: Water <br />' l Concentration (ug/kg,ul % Recovery <br /> Analyte I l Amount RPD l <br />' Sample MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethel 0 .0 100.0 97 . 0 l 100 i 100 97 3 . 0 l <br />' lTrichloroethene l 0 .0 83 .0 83 . 0 l 100 i 83 83 0 . 0 l <br /> JEDB l 0 .0 95.0 89. 0 l 100 l 95 89 6 .5 l <br /> lChlorobenzene l 0 . 0 97.0 93 . 0 l 100 i 97 93 4 .2 l <br />' lBenzene l 0 . 0 105.0 101. 0 l 100 l 105 101 3 . 9 l <br /> lToluene l 0 . 0 101. 0 100. 0 l 100 l 101 1.00 1.0 l <br /> I <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br />