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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 HYDROCARBON ANALYSES <br /> Date: 08/25/97 Matrix: Water <br /> Concentration (mg/L) Recovery <br /> Analyte I Sample Amount I RPD <br /> 1#$ (80000) MS MSD Spiked MS MSD <br /> TPH (gas) 1 0 . 0 105.3 103 .5 100 .0 1 105.3 103 .5 1.7 <br /> Benzene 0. 0 8.9 9. 0 10 .0 89.0 90 .0 1.1 <br /> 1 Toluene 0. 0 10 .2 10 .2 1 10 .0 102 .0 102 .0 0 .0 <br /> 1 Ethyl Benzene 1 0.0 11.2 11.2 1 10 .0 1 112 .0 112 .0 0 .0 <br /> Xylenes 1 0 .0 33 .7 33 . 8 30 .0 1 112 .3 3.12 .7 0 .3 <br /> ITPH(diesel) 0 104 100 100 104 100 3 . 9 , 1 <br /> I <br /> I <br /> TRPH N/A N/A N/A I N/A N/A N/A N/A <br /> I (oil & grease) I I I 1 <br /> I I I <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x-2 x 100 <br />