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110 2nd Avenue South,#D7, Pacheco,CA 94553 <br /> McCA.MPBELL ANALYTICAL INC. Tele. 925-798-1620 Fax:925-798-1622 <br /> QC REPORT FOR VOCs (EPA 6240/8260 ) <br /> I <br /> Date: 02/23/99-02/24/99 Matrix: SOIL <br /> S <br /> S <br /> Concentration (ug/k ,ul % Recovery <br /> Analyte Sample Amount I RPD } <br /> (##98798) MS PTSD I Spiked I MS MSD <br /> 1 <br /> 11,1-Dichloroethel 0 110 1 8 1 100 I 110 108 1.8 <br /> Trichloroethene 1 0 96 6 1 100 96 96 0 .0 I <br /> EDB I N/A N/A N A I N/A N/A N/A N/A j <br /> IChlorobenzene 1 0 99 98 100 99 98 1.0 <br /> Benzene 1 0 104 103 100 104 103 1.0 <br /> Toluene 1 0 100 38 100 100 98 2 .0 i <br /> i <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) c 2 x 100 <br /> f <br />