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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 /> 1 <br /> ' QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> ' Date 08/30/99-06/31/99 Matrix WATER <br /> ' I Concentration (ug/kg,ul I Recovery <br /> Analyte I Sample Amount RPD <br /> I (#17446) MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethe] 0 127 126 100 127 126 0 8 <br /> ' ITrichloroethene I 0 104 101 I 100 104 101 2 9 I <br /> ]EDB N/A N/A N/A I N/A I N/A N/A N/A I <br /> IChlorobenzene ] 0 112 112 I 100 I 112 112 0 0 I <br /> ' IBenzene I 0 101 101 I 100 I 101 101 0 0 } <br /> ]Toluene I 0 109 108 I 100 I 109 108 0 9 I <br /> I I I I I <br /> M <br /> ' Rec = (MS - Sample) / amount spiked x 100 <br /> RPI a (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />