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An overlay of the chromatograms for SB-3-7', a reference gasoline and a reference jet fuel is shown in the <br /> last chromatogram that accompanies this report. This shows that while the hydrocarbon distributions of <br /> gasoline and jet fuel to some extent overlap,jet fuel cannot be contributing to the hydrocarbons found in the <br /> samples. Jet fuel contains heavier hydrocarbons than those observed. This is illustrated numerically in Table <br /> 3 which shows the hydrocarbon distributions for the samples, the reference gasoline and the reference jet <br /> fuel. Allowing for the evaporation of the light components of gasoline, the hydrocarbon distributions of the <br /> samples best match that of the reference gasoline. Jet fuel is clearly not the source of the hydrocarbons. <br /> Table 3. Hydrocarbon distribution of sam les and reference petroleum products. <br /> Sample C6-C10 C11-C14 C15+ <br /> SB-2-6' soil 64.4 33.1 2.5 <br /> SB-1-6.5' soil 65.5 34.5 0.0 <br /> SB-3-7' soil 51.4 46.1 2.6 <br /> SB-2-GW <br /> (groundwater) 80.3 18.7 0.9 <br /> SB-1-GW <br /> oundwater 76.5 23.2 0.2 <br /> SB-3-GW <br /> (groundwater) 68.9 30.5 0.7 <br /> Reference jet fuel 21.2 64.4 14.4 <br /> Reference gasoline 92.9 7.0 0.2 <br /> Analytical Auuroach:The sample was analyzed by gas chromatography using a flame ionization detector to <br /> determine the hydrocarbon composition. <br /> Analyzed by: G. C. Chen <br /> Reported by: M. E. Moir 7n E71� <br /> RCochran MEMoir <br /> RHoffmore SLang GChen <br /> AW Verstuyft SFSciamanna <br /> Technical Files ECTFiles <br />