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5 <br /> Section 5 <br /> Conclusions and Recommendations <br /> Diesel Fuel Tank <br /> The GPR survey result., indicate that no underground tank exists in the vicinity of the <br /> suspected 500-gallon underground diesel tank location. The 1983 Johnson & Higgins <br /> Map (see Section 2) is the only known record of this buried tank. Long-time Del <br /> Monte Plant 33 employees do not recall a buried tank at this location; however, <br /> employees do recall an aboveground tank in the same area. Two 6-inch square <br /> footings exist in the concrete of the suspect location; these footings may have helped to <br /> support an aboveground tank. <br /> The available information indicates that an underground tank does not presently exist, <br /> and may never have existed, at the location shown on the 1483 map. <br /> Soil <br /> Visibly contaminated soil around the 500-gallon tank was removed, along with the tank, <br /> in 1985. The soil remaining at the East Miner site does not contain hydrocarbon or <br /> lead contamination at concentrations above recommended cleanup levels as defined by <br /> the LUIFT Manual. No further remedial action is recommended. <br /> r <br /> Groundwater <br /> No groundwater was encountered in :uoy of the East Miner horehooles to a maximum <br /> depth of 66 feet bgs. According to the LUFT Guidance Manual, the hydrocarbon <br /> concentrations detected during the yield investigation do no present a risk to <br /> recommended. <br /> groundwater; therefore, no groundwalei investigation is <br /> Sf U}IM1i1Rk"O1i5,5� 5-1 <br /> 4- �1 <br />