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3. Reclaim Waste Piles <br />The two waste piles located at the Revenue Mine will be reclaimed sequentially over the course of <br />the mine life. This is to minimize the amount of waste pile that is unreclaimed at any time. Each <br />pile will be built using trucks dumping waste that is then pushed into a lift by a dozer. Each lift will <br />be compacted by equipment driving along it. Since the waste piles will be a mix of angular waste <br />rock from excavation and fine mill tailings, the compaction of lifts will minimize settling. Each <br />waste pile is expected to be approximately 20% waste rock and 80% tailings. The flotation process <br />being used at the Revenue Mine will ensure that the tailings are chemically inert. <br />Surface water runoff seeping through the piles is still to be discouraged in order to prevent the <br />contribution of sediment to Sneffels Creek. The tailings will be placed on the waste piles in six inch <br />lifts each year, and then compacted to 94% of maximum dry density. Prior to the end of each <br />summer, topsoil will be placed along the waste slope for the year, seeded, and mulched. The topsoil <br />quantities required for reclamation can be found in Table E -2. <br />5. Reclaim Shafts <br />As described in Exhibit D, there will be three shafts as part of the Revenue Mine: the 960 Raise, the <br />Yellow Rose Shaft, and the Monagahela Shaft. Each of these shafts will exit at the surface, and <br />therefore will generate surface disturbance that must be reclaimed. Each shaft must have its <br />concrete foundation on the surface removed, a seal installed, and then be topsoiled and revegetated. <br />The first step in reclaiming the vent holes will consist of digging down four to six feet deep around <br />each hole and cutting the casing off from three to four feet below the ground surface. After <br />removing the casing and concrete pad, each shaft will be covered with a steel plate and sealed upon <br />which a six inch concrete slab will be poured. Then seal will be buried with either available <br />overburden and soil generated from excavation, or regarded into the local topography to provide at <br />least four feet of backfill placed. 12 inches of topsoil will be placed on top of each shaft's backfilled <br />area. This topsoil will come from the berms constructed at the shaft installation. All of this should <br />be accomplishable in the 100' x 100' disturbance area of each shaft. All of the shafts are accessible <br />in the summer from BLM roads. <br />Revenue Mine August 2012 E - <br />