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110 2nd Avenue South, #137,Pacheco,CA 94553 <br />' McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 1 <br /> 1 <br />' Date 09/09/97-09/10/97 Matrix Water <br />' I 1 Concentration (ug/kg,ul % Recovery i <br /> Analyte 1 I Amount RPD <br /> I I Sample MS MSD Spaked MS MSD <br /> 1 I <br /> 11, 1-Dichloroethel 0 0 100 0 97 0 1 100 100 97 3 0 1 <br />' ITrzchloroethene 1 0 0 83 0 83 0 1 100 83 83 0 0 <br /> (EDB 1 0 0 95 0 89 0 1 100 I 95 89 6 5 I <br /> IChlorobenzene 1 0 0 97 0 93 0 1 100 97 93 4 2 1 <br /> (Benzene 0 0 105 0 101 0 1 100 I 10S 101 3 9 <br />' Toluene l 0 0 101 0 100 0 I 100 1 101 100 1 0 <br /> 1 <br />� w <br />' Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br />