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Wa1S11 <br />Favuaunenul Srie'disu end Engineer. Inc <br />The tailings pond is currently Hypalon Gned to prevent seepage of pond water into the <br />water table. This Gner will be removed to prevent the tailings-cement mixture from <br />becoming saturated by precipitation infiltration. The berm of the pond will be bulldozed <br />into the depression. The remainder of the pond depression will be filled with material <br />from useable waste-rock piles within the permit azea and clean fill from off site as <br />necessary. <br />Waste rock piles will be tested for ABP prior to use as fill material for the pond. Waste <br />rock that does not pass the ABP test will not be used as fill unless it is neutralized and <br />stabilized with concrete, and confirmation testing indicates that it is suitable for use. Fill <br />material will be imported if it is more cost effective than neutralizing and stabilizing the <br />waste rock, or if all on-site waste rock sources are depleted. <br />The fill over the pond will be regraded with a constant slope from one side of the pond to <br />the other. A 1-foot thick layer of suitable plant growth material (soil) will be placed atop <br />the fill. The soil layer will be revegetated with native grasses, and tree and shrub seedlings <br />to prevent erosion and give a natural appeazance. <br />The dam will be regraded to a slope no greater than 3:1 if necessary. Soil will be placed <br />on the regraded surface, and tree and shrub seedlings and native grasses will be planted on <br />the dam areas as needed to stabilize slopes and give a natural appearance. Impound <br />fencipg will be removed after the reclamation is complete. Figure 4 shows the conceptual <br />design of the reclaimed tailings pond. <br />Diversion ditches that currently route storm water around the pond will be left in place <br />and repaired to prevent storm water run-on to the reclaimed impoundment. All above- <br />ground piping will be removed. <br />3.4 Land Application System <br />All piping and other equipment associated with the land application system will be <br />removed from the permit azea. All salvageable materials will be stored at an unspecified <br />off-site location. Other materials will be disposed of off site. The land application system <br />is installed in a well vegetated area among trees, shrubs and grasses. The piping is above <br />ground, and no site disturbance will occur during removal. <br />3.5 Waste-Rock Removal Area Revegetation <br />Several waste-rock piles lie within the permit area. These piles were generated during <br />historic mining activities dating to the 1870s, and reclamation is not required under the <br />milling permit. However, some of these materials may be used as fill as discussed in <br />Section 3.3. <br /> <br />3 <br />