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CONCLUSIONS AND DISCUSSI014S <br /> i <br /> _ A series of borings , fifteen 15in all were emplaced <br /> around an underground storage tank installation to define the <br /> limits of contamination present in the subsurface environment. A <br /> i <br /> d plume, situated approximately eleven (11) feet below ground <br /> surface, extends in a roughly eliptical fashion from the tank <br /> _ installation (see plume estimate diagram) . <br /> It is recommended that the tanks be verified for tightness <br /> - via a recognized testing technique. The evaluation of the <br /> - facility records indicates a fair chance that the unleaded <br /> gasoline tank does have a small leak. If the tanks prove to be <br /> tight, it will be assumed that the previous tank, which has <br /> I <br /> supposedly been removed, was the source of contaminatiori. If the <br /> tanks are found to leak, their removal/or repair is mandated. <br /> It is recommended that the Ohio EPA be notified of the <br /> T <br /> presence, extents and concentrations of contamination. Mr. <br /> Edward Onjia, 419/352-8461 is in charge of projects in this area. <br /> We have prepared an additional .document outlining several <br /> remedial techniques and gross approximations of the associated <br /> costs. This document accompanies p this report <br /> Page 38 <br /> 75 <br />