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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 02/10/98-02/11/98 Matrix WATER <br /> I Concentration (ug/kg,ul # Recovery <br /> Analyte 1 Sample Amount RPD <br /> 1 1 # (85740) MS MSD Spiked I MS MSD <br /> I I I I <br /> 11, 1-Dichloroethel 0 100 88 1 100 1 100 88 12 8 <br /> I ITrichlcroethene 1 0 92 85 1 100 I 92 65 7 9 1 <br /> ZEDS 1 0 102 88 1 100 I 102 88 14 7 1 <br /> IChlorobenzene 1 0 87 83 1 100 I 87 83 4 7 1 <br /> IDenzene 1 0 100 89 1 100 I 100 89 11 6 <br /> IToluene 1 0 102 88 1 100 I 102 88 14 7 <br /> 1 <br /> lie <br /> 8 Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (NS + MSD) x 2 x 100 <br /> I <br /> I <br /> 1 <br />