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�v <br /> I _ <br /> m. <br /> F <br /> E[ <br /> i <br /> I ndUnter uan <br /> Groundwater gradients in the area are relatively shallow, so, <br /> groundwater impacts on surrounding sells are not expected. The <br /> closest off-site wells are approximately one of a mile away <br /> and are used intermittently for domestic or agricultural water <br /> supply and irrigation. All of tho off-site wells apparently <br /> produce from the zone 5 or deeper aquifers. It is not <br /> anticipated that their operation or activity will be impacted b <br /> y <br /> remediation activities. <br /> s <br /> Conclusions <br /> ` The results of chemical analyses performed on soil samples and <br /> f <br /> groundwater samples suggest that soil contamination r b � <br /> y petroleum <br /> ' hydrocarbons is restricted to a soil column near the tank pit <br /> area and.has migrated � <br /> r; g d to the underlying water table. M',le ongoing � <br /> � . s <br /> groundwater recovery program, incorporating air stripping of j <br /> dissolved hydrocarbons, has achieved significant free. product <br /> removal. The proposed s to bioreclamation program, combined <br /> r <br /> with continued <br /> groundwater recovery and air stripping.'.will <br /> most # <br /> �.. cost effectivelyE - <br /> and:most quickly achieve acceptable residual <br /> concentrations in soils and groundwater at the site. <br /> 5 <br /> E <br /> I <br /> A <br /> 0. <br /> 3 <br /> 1f <br />