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110 2nd Avenue South,#D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALY'�ICAL INC. Tele:510-798-1620 Fax 510-798-1622 <br /> 1 . <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/14-09/15/93 Matrix: Water <br /> ' Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> ' Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 104.2 100.9 101 103 100 3.2 <br /> ' Benzene 0.0 9.9 10.0 10 99 100 1.0 <br /> Toluene 0.0 9.9 10.0 10 99 100 1.0 <br /> Ethyl Benzene 0.0 9.8 9.8 10 98 98 0.0 <br /> ' Xylenes 0.0 30.1 30.3 30 100 101 0.7 <br /> i <br /> MTPH (diesel) 0 148 158 150 99 105 6.2 <br /> TRPH 0 21200 22000 20000 106 110 3.7 <br /> ' (oil 6 grease) <br /> r <br /> ' % Rec. _ (MS - Sample) / amount apiked x 100 <br /> RPD = (MS - MSO) / (MS + MSD) x 2 x 100 <br /> r <br /> r <br /> r <br /> r <br /> r <br />