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RECLAMATION - BENCHES <br /> • A recent, large slough-slide is present on the east facing slope south of the <br /> mine bench. This slide is within an avalanche area, and may be related to <br /> avalanche activity. <br /> • The avalanche hazard to the mine bench area consists of the zone south of <br /> the bench and the avalanche gully above the sediment pond, none of which <br /> threaten the main portion of the mine bench. <br /> Application of Reclamation Concept <br /> A buttress will be placed along the toe of the cut in order to increase the cut's <br /> long-term stability. <br /> Buildings still remaining at the site on closure of the mine, as well as <br /> foundations, will be utilized in construction of the buttress. The foundations will <br /> be rubblized and, together with the dismantled structures, placed against the <br /> toe of each cut, along the length of the toe, together with any rock and/or soil <br /> which has fallen from the crest of the cut. <br /> Material will then be placed over the rubble, compacted and contoured. Rock <br /> from the crest of the cut will be allowed to fall on the buttress. It is anticipated <br /> that material from reclamation on the fill at the bench will be utilized in <br /> constructing the buttress. <br /> The dimensions of the buttress will be determined by considerations of stability, <br /> so as to allow a factor of safety of 1.3. <br /> Further disturbance to the crest of the cut is not contemplated. <br /> Around the perimeter of the bench, the angle of the edge will be flattened to a <br /> slope of 1.5:1, or flatter. Material taken from the perimeter of the bench will be <br /> used in construction of the buttress along the cut. <br /> In order to increase the stability of the fill, a berm will be constructed above the <br /> flattened slope around the outside perimeter of the bench. Further back, and <br /> within the flattened area of the bench, a small ditch will be constructed. The <br /> objective is to improve surface drainage so as to prevent surface water from <br /> entering the fill. <br /> The area of the bench will be scarified and seeded with the approved 10,000' <br /> seed mix. <br /> No. 5 Bench <br /> 14 <br />