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CONCLUSIONS <br /> Based on the data from previous investigations, soils adjacent to the underground tanks contain <br /> the highest concentration of hydrocarbon beneath the site The extent of hydrocarbon <br /> contamination in soil has been defined, and appears to be limited to the tank area Soil samples <br /> from the new wells did not contain detectable hydrocarbon levels (Figure 5) <br /> Groundwater beneath the site occurs at about 48 feet below grade in an unconfined condition <br /> Wells MW2 and MW3 recently developed a free product sheen, the first instance of free product <br /> at the site Wells MW 1 and MW4 have consistently had very low or less than detectable benzene <br /> concentrations Well MW8 continues to have relatively high dissolved benzene levels, which is <br /> apparently derived from a separate source as indicated by the data from MW4 (Figure 6) New <br /> wells MWS and MW9 had low levels of dissolved benzene Downgradient well MW6 had less <br /> than detectable concentrations <br /> • Site reconstruction efforts have been in progress at the property recently These activities have <br /> included abandonment of six wells (VWX VWB, VWC, MW1, MW2, and MW8), removal of the <br /> old tanks, replacement with new tanks in the same general area, and construction of a new market <br /> on the southwest corner of the site Provisions have been made by Thnfty Oil Company to <br /> replace some of the abandoned wells and to continue with the environmental investigation and <br /> remediation of the site <br /> i <br /> Page 10 <br />