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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #137,Pacheco, CA 94553 <br /> P <br /> Tele: 510-798-1620 Fax: 510-798-1622 <br /> ' QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 04/01/97 Matrix: Water <br /> F <br /> Concentration (mg/L) I $ Recovery <br /> I Analyte Sample Amount I RPD <br /> 1 (#74791) MS MSD I Spiked MS MSD <br /> I I I <br /> I TPH (gas) 0 . 0 88.7 97.4 100 .0 I 88 .7 97.4 9 .4 I <br /> Benzene I 0 .0 9.1 9.5 10 . 0 I 91. 0 95 .0 4 .3 <br /> Toluene I 0 . 0 9.3 9 . 8 10 . D f 93 .0 98.0 5 .2 <br /> I Ethyl Benzene 0.0 9.5 10 .2 ! 10 .0 I 95 .0 102 .0 7 .1 <br /> Xylenes I 0 . 0 28.1 30 . 6 I 30 . 0 I 93 .7 102 .0 8 .5 I <br /> ITPH (diesel) I 0 140 139 150 93 93 0 .9 <br /> TRPH I 0 24000 23400 ' 23700 I 101 99 2 .5 I <br /> ' (oil & grease) <br /> I <br /> 1 <br /> Is Rec. _ (MS - Sample) / amounc spiked x 100 <br /> RPD IMS - MSD) / (M8 + MSD) x 2 x 100 <br /> 1 <br /> �I <br /> 1 <br />