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•rte r'' and no hydrocarbons were detected in any of the samples using this method. On 9 and 10 January 1986, GTI personnel supervised the drilling of four soil borings (Figure 6) located "along the path of the fuel lines" (SBI-SB3 ) and near the waste oil tank excavation (SB4 ) to sample the soil for the presence of hydrocarbons (GTI 1986a) . Two soil samples were collected at 5 feet and 10 feet 4 from each of the four 10-foot--deep borings by driving a split- spoon sampler ahead of the augers. (Copies of the boring logs are included in Appendix D) . These soil samples were screened at the surface using an HNU photoionization detector calibrated for � . benzene. No hydrocarbons were detected in any of the .soil sam- plea using this method. In December. 1986, a soil boring was drilled by GTI in the area of the former- tank pit for the purposes of soil sampling and instal- lation of. a monitoringw ell (MW3) . Soil samples were collected from this boring .using a split-spoon sampler lined with brass tubes. . .Samples were handled, stored, and transmitted to Wesco yLaboratories according to GTI .sta:ndard operating procedures,.-as �. described in the GTI report. Three soil samples from this boring :.. were analyzed for, TPH, benzene,. toluene, and xylenes. Results of these analyses are inc.luded :in Table 8. F In June 1987 two additional soil borings were drilled to collect soil samples and install two monitoring. well,-s:(MW4, MW5, Figure One soil sample was collected .from the 45-Moot level of each . .: boring.., The results__of -the-chemicalanalysis_ of these samples are included .with .the other. GTI soil sample results in Table S. ' Soil samples collected, from.M143.contained very low levels of s e benzene, toluene; xylenes, and total ioetroleum hydrocarbons (Table 8); soil samples from MW4 and MW5 contained nondetectable levels .of.:these. €uel constituents. e35/71050/2-90/tx 20 ft.