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stripping the topsoil. These trees will be placed in a sepazate pile and made available for firewood <br />• collection. <br />The Packrat Mine was reclaimed by importing alluvial soil from the Gateway azea. The material <br />was used to cover the backfilled portal and regraded waste embankment azea. This material will be <br />stripped to the extent possible, but it is expected that only 4 to 6 inches of material will be salvaged <br />over an azea of approximately 1.0 acres. This is a volume of 672 cubic yazds, assuming an average <br />soil depth of 5 inches. Since there is no room at the Packrat portal area for storing this material, the <br />material will be used for the creation of the MSHA berm along the Packrat access road. These <br />berms will be seeded with the mix described in the reclamation plan to minimize erosion. <br />The following azeas of topsoil stripping correspond to the azeas shown on map C-lA. <br />Area I: Most of the Whirlwind portal area was previously reclaimed without placing topsoil; <br />accordingly, there is only a limited amount of topsoil that can be salvaged from the previously <br />. reclaimed azea. Almost all of the salvageable topsoil in this azea occurs on the slope of the <br />reclaimed waste pile, which covers about 1.6 acres. This material will be stripped to a depth of 6 <br />inches and will be placed in the Whirlwind stockpile on the north side of 5/10 Road (Stockpile #1). <br />This represents about 1,300 cubic yazds of topsoil. The existing growth media on top of the waste <br />pile pad will be used to construct MSHA berms azound the edge of the pad. <br />Area 2: The waste embankment will expand east over Area 2, which is relatively flat with gentle <br />slopes. Most of the soil borings were completed in this azea, where topsoil ranges from 1.2 feet to <br />2.3 feet in thickness. There aze a number of rock outcrops in the azea where no topsoil is available. <br />Based on the collected soil samples, the average topsoil thickness in this azea is 1.78 feet. When the <br />rock outcrops aze subtracted, the average thickness is estimated to be 1.6 feet. Since the azea is 8.42 <br />acres in size, the volume available for stripping is 21,700 cubic yazds. Initially, only about 5,900 <br />cubic yazds will be stripped and placed in Stockpile #1, located north of 5/10 Road, for use in final <br />reclamation. The stockpile will have 3H:1 V sideslopes. A smaller stockpile will exist on the portal <br />bench as shown on Map C-2 (Stockpile #3). This azea will have the same 3H:1 V sideslopes and will <br />~~ <br />Whirlwind Mine June 07 D-15 <br />