Laserfiche WebLink
PilIII <br /> Mr. J. Kelly Williar n <br /> Kayo Oil Company IT CORPORATION <br /> April 17, 1985 <br /> PeLge 4 <br /> soil at any particular site will tend to be overstated, especially if <br /> the volume of soil involved is large. The graph shows hypothetical <br /> volumes of 20,000 and 40,000 cubic.feet of contaminated soil. Note that <br /> a small difference in the assumed concentration of hydrocarbons will <br /> dramatically effect the predicted volume of hydrocarbons present. The <br /> larger the volume of soil involved, the more dramatic this relationship <br /> will be. <br /> REMEDIAL ALTERNATIVES <br /> The contamination is associated with the tank pit and the soils imme- <br /> diately around the tanks. Since the water table has not been found, a <br /> pumped recovery system is not appropriate for dealing with the plume. <br /> The data suggest that no contamination has penetrated deeper than <br /> 25 feet. Excavation of the contaminated soils around the tanks would be <br /> the most effective way of mitigating this contamination should that be <br /> neceLsary. <br /> Such an excavation would at a minimum necessitate removal of the tanks <br /> and a replcement installation that meets current underground tank regu- <br /> lations. <br /> RECOMMENDATIONS <br /> r <br /> IT recommends that the tank inlets should be equipped with spill preven- <br /> tion devices to prevent the further introduction of hydrocarbons into <br /> the subsurface. The vadose zone wells should be monitored with Draeger <br /> tubes or other calibrated devices to assure that the plume is not <br /> spreading. In addition; -fhree wells should be installed to the ground <br />