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{ <br /> cn <br /> the installation of three new wells (Figure 3) . The new wells <br /> in will be installed adjacent to the three wells that have gone dry <br /> in the last two summers (MW3, MW4, MW5 ) . Drilling will be <br /> scheduled after the permits have been approved. <br /> The next- round of quarterly groundwater sampling is planned for <br /> mid--September 1990, <br /> i <br /> I 4. STATUS OF SOIL CONTAMINATION DEFINITION <br /> I <br /> TANK CLOSURE SAMPLES <br /> Soil samples were collected from the tank excavations at the time <br /> � --- of the tank removal in February 1986 (S-1 to S-6, Figure 1 ) .. The <br /> results .of . analysis of these samples (Fable 3) indicate that in <br /> 1.986 there were concentrations of up to 4,600 mg/kg of total <br /> volatile hydrocarbons in the. soil in the tank field. <br /> r <br /> j SOIL BORINrGS <br /> Samples have..been collected from several soil borings that have <br /> * been .drilled, either for monitoring well installations (Mw3, MW4, <br /> - MW5) ryr specifically for soil sampling (SB5, SB6, SB7) (see <br /> Figure. t) The results of the analyses of these samples are. <br /> shown in Table 3 .(MW3-MW5, drilled by `GTT) and Table 4 (SB5-SB7,, F <br /> 't <br /> rdrilled. by 'EA) . The results of analysis of these soil samples <br /> indicate :that only low levels.. ( <2 ppm) of TPH or. BTEX are present <br /> . ' <br /> in the unsaturatea .soils in the area of the borings. <br /> �q SOIL VAPOR SURVEYS <br /> Two soil vapor surveys have been conducted at this site, one by I <br /> EA in 1987 and one by EVAX in 1990. The EVAX results indicated <br /> the presence of up to 19,.000 ppm of TVH in the sail vapor beneath i <br /> the former tank field. These results were used by EVAX to design <br /> and propose a soil venting remedial. plan. <br /> ,:; <br /> _ e42/71050/sep90/tx 2 , <br /> i j. <br />