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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. <br /> Tele:510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR EPA 8010/8020/EDB <br /> Date: 08/29/93 Matrix: Soil <br /> Concentration (ug/kg) Recovery <br /> ' Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 1 1,1-DCE 0 Be 86 100 88 86 2.3 <br /> Trichloroethene 0 90 86 100 90 86 4.5 <br /> EDB 0 112 98 100 112 98 13.3 <br /> Chlorobenzene 0 102 106 100 102 106 3.8 <br /> Benzene 0 122 118 100 122 118 3.3 <br /> Toluene 0 104 104 100 104 104 0.0 <br /> Chlorobz (PID) 0 88 100 100 88 100 12.8 <br /> i <br /> ' X Rec. = (MS - Sample) / wotmt spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSO) x 2 x 100 <br />