2012-01-17_REVISION - C1996083 (3)

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2.05.4 The drill pads for the Gob Ventilation Bore Holes will be reclaimed when the GVBs are no longer required. If topsoil is not salvaged in adequate quantity to provide a suitable seed bed, one will be developed as explained in the paragraph above. Reclaimed light use roads and drill pads will be graded to approximate original contour. (2)(d) A plan for the removal and storage of topsoil is presented in Section 2.05.3(5). During reclamation operations topsoil will be placed on regraded areas in an approximate uniform, stable thickness. Map No. 32, Topsoil Distribution Plan, shows the location of the topsoil stockpiles and the areas where and thickness which topsoil will be spread. Topsoil stockpile A (previously A, B and C) contains 111,900 cubic yards and will be spread over 63.1 acres which will provide an approximate uniform stable thickness of over 12- inches. Topsoil stockpiles D & E contain 5,300 cubic yards and will be spread over the 7 acre gob pile area which will provide an average replacement depth of approximately 6- inches. Additional topsoil will be salvaged from the gob pile founding which will supplement the 6 -inch topsoil replacement depth. The 12 -inch topsoil depth should provide adequate depth for the establishment of a self- sustaining cover of grasses, forbs and shrubs. The self- sustaining vegetation is appropriate for the postmining land use of rangeland and wildlife habitat. The 6 -inch depth for the gob pile area is marginal, however the actual replacement depth in this area will increase as additional topsoil is salvaged. Topsoil stockpile F will contain 24,000 cubic yards. It will be spread over the 22 acres of the reclaimed unit train loadout to a depth of approximately 1.2 feet. The regraded and topsoiled surface will reestablish the surface water drainage system by returning the area to the approximate original contours. The regraded surfaces will be ripped if necessary to relieve compaction and to provide for root penetration. Topsoil will be placed and spread with either scrapers or a front end loader and truck equipment spread. The topsoil will be spread with a track dozer. Handling topsoil in such a manner will minimize deterioration of the biological, chemical, and physical properties of the topsoil and will prevent excess compaction and contamination of the topsoil. Topsoil will not be handled when saturated either during the initial MR -128 2.05 - 66 - 01/13/12