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110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> [ McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Pax:510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 03/31/97 Matrix: Water <br />' I Concentration (mg/L) % Recovery <br /> Analyte I Sample Amount I RPD <br /> ] ('#74710) MS MSD Spiked MS MSD <br /> l <br /> TPH (gas) 0 .0 96.1 93 .3 100 . 0 96 .1 93 .3 3 .0 <br /> Benzene 0 . 0 10 .6 10.5 10 . 0 106 .0 105 .0 0.9 <br />' Toluene ( 0 .0 11.1 10.9 10 . 0 111 .0 109.0 1.8 <br /> Ethyl Benzene 0 .0 11.5 11.3 10 . 0 115 .0 113 .0 1.8 <br /> [[ Xylenes I 0 .0 34.5 33 .6 I 30 .0 115 . 0 112 .0 2 .6 <br /> t <br /> ITPH (diesel) 0 140 139 150 93 .93 0 .9 <br /> c <br /> TRPH I N/A N/A N/A N/A I N/A N/A N/A <br /> (oil & grease) <br />' % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / WS + MSD) x 2 x 100 <br /> 1 " <br />