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110 2nd Avenue South,#D7, Pacheco, CA 94553 <br /> L.McCAMPBELL ANALYTICAL INC Tele 925-798-1620 Fax 925-798-1622 <br /> QC REPORT FOR VOLS (EPA 8240/8260 ) <br /> 1 <br /> Date 10/16/98-10/17/98 Matrix SOIL <br /> Concentration (ug/kg,ul I % Recovery <br />' Analyte E Sample I Amount RPD <br /> MS MSD Spiked MS MSD <br />' I1, 1-Dkchloroethel 0 70 72 1 100 70 72 2 8 <br /> ITrichloroethene I 0 80 84 f 100 80 84 4 9 <br /> (EDB I 0 98 91 I 100 98 91 7 4 <br />' IChlorobenzene I 0 111 108 I 100 111 108 2 7 <br /> (Benzene I 0 87 88 I 100 I 87 88 1 1 <br /> (Toluene I 0 104 105 I 100 I 104 105 1 0 <br /> $ Rec iMS - Sample) / amount spiked x 100 <br />' RPD (MS - MSD) / IMS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br /> 1 <br />