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backfilling and other sample site reclamation is logical to complete, given site specific <br />conditions. The winter sampled sites will be checked in the spring, after snow melt, for <br />implementation of any corrective actions necessary to stabilize the site.) <br />(5) All refuse and acid forming or toxic producing materials that have been <br />mined shall be handled and disposed of in a manner that will control unsightliness <br />and protect the drainage system from pollution: <br />All refuse generated from exploration operations will be removed and disposed in an <br />approved facility off -site. No new acid forming or toxic producing materials will be <br />exposed at the surface or stockpiled on the surface. Since these are historic waste mine <br />dumps, they may be acidic in nature. The purpose of the exploration operation is to <br />determine if sufficient value exists in the sampled dumps to remove them to a mill for <br />processing and recovery of metals. If it is determined a waste dump has sufficient value <br />to remove to a mill for processing, a possible source of acid mine runoff will be removed <br />from the drainage system. <br />(6) Any drill or auger holes that are part of the mining operation shall be <br />plugged with non - combustible material, which shall prevent harmful or <br />polluting drainage. Adits and shafts should be closed, and where practicable, <br />backfilled and graded in a manner consistent with the post mining land use: <br />Auger holes will be backfilled with excavated waste dump material and the sampled area <br />smoothed to blend in with the adjacent waste dump surface. The small disturbed area <br />will be covered with burlap or other suitable material to prevent erosion. <br />No exploration core hole drilling is anticipated at this time. <br />(7) Maximum slopes and slope combinations shall be compatible with the <br />configuration of surrounding conditions and selected land use. In all cases <br />where a lake or pond is produced as a portion of the Reclamation Plan, all <br />slopes, unless otherwise approved by the Board or Office, shall be no steeper <br />than a ratio of 2:1 (horizontal to vertical ratio), except from 5 feet above to <br />14 feet below the expected water line where slopes shall be not steeper than <br />3:1. If a swimming area is proposed as a portion of the reclamation Plan, <br />the slopes, unless otherwise approved by the Board or Office, shall be no <br />steeper than 5:1 through the area proposed for swimming, and a slope no <br />steeper than 2:1 elsewhere in the pond: <br />Not applicable to this operation. <br />11 <br />