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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> MCCAMPBELL ANALYTICAL INC Tele 925-798-1620 Fax 925-798-1622 <br />' QC REPORT FOR VOCs (EPA 8240/8260 ) <br />' Date 07/01/99-07/02/99 Matrix WATER <br /> Concentration (ug/kg,ul Recovery <br /> Analyte Sample Amount RPA <br /> I (#13574) MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethel 0 103 110 100 103 110 6 6 <br />' ITrichloroethene I 0 101 111 100 101 ill N/A N/A 94 <br /> IEDB I N/A N/A N/A <br /> NIA <br /> IChlorobenzene I 0 90 101 100 I 90 101 11 5 I <br />' IBenzene I 0 94 98 I 100 94 98 4 2 <br /> IToluene I 0 89 98 I 100 I 89 98 9 6 <br /> I ; I <br />� i <br /> t Rec = {MS Sample) / amount spiked x 100 <br /> RFD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> i - <br /> M <br /> i <br />