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The next two Feet of the shaft will then be filled with concrete to form a top plug for the shaft. Fill material will be
<br />placed in the remaining three feet of the shaft (approximately 1.4 CY), and then the site will be topsoiled and
<br />revegetated. The redistributed topsoil will be seeded with the pastureland seed mixture.
<br />EMD Ventilafion Site
<br />When the facilities aze no longer required, they will be dismantled and removed from the site. The fans, silencer,
<br />supports, and associated buildings will be removed and hauled from the site. The concrete pads, footers, and piers will
<br />be broken-up and placed into the cased holes. Cement plugs will be poured in the bottom fifteen feet ofeach hole, and in
<br />the intervals corresponding to the Twentymile Sandstone and 20 feet above and below it. The remainder of the holes,
<br />will be filled with inert material. A cement plug will be poured from ten feet to three feet below ground surface, and the
<br />top 3 feet will be filled with soil.
<br />After the holes have been plugged and the building materials removed, the site will be regraded to blend with the
<br />surrounding topography. The topsoil will then be reapplied to the site and seeded with a pastureland seed mixture.
<br />Dewaterin¢ Borehole and Mine Water Recycle System
<br />Upon completion of mining, and when the system is no longer required, the facilities will be removed and the site
<br />reclaimed. Removal of the surface facilities will involve removal of the modulaz electro-coagulation units (2);
<br />dismantling of surface structures, which includes the powerline, transformer and pad, any remaining chemical and pump
<br />control equipment, buildings and pads; and reclamation of the ponds and road. After the facilities are removed, the site
<br />will be regraded to blend in with the existing topography and the stockpiled topsoil redistributed over the area. The
<br />topsoil redistributed over the dewatering site and reclaimed road segments will be seeded with the pastureland seed
<br />mixture. The existing road and beginning segment will be left in place to serve the postmining land use. The topsoil
<br />windrowed or stockpiled adjacent to the road will be seeded with pastureland seed mixture.
<br />NMD Power Borehole
<br />• Upon completion of mining, and when the power borehole is no longer needed, the facilities will be removed and the site
<br />reclaimed. Removal of the surface facilities will involve dismantling of surface structures, which includes the powerline,
<br />transformer and pad, road and culvert, and building. After the facilities are removed, the site will be regraded to blend
<br />with the existing topography, the stockpiled topsoil will be redistributed over the area, and the power borehole pad and
<br />reclaimed road segments will be seeded with the pastureland seed mixture. The entire road will be chisel-plowed after
<br />removing the geotextile.
<br />1WV-Mains Ventilation Shaft and Thickener Underllow Project tTR01-39)
<br />When the NW-Mains ventilation shaft and fan installation are no longer needed to support ongoing or future mining
<br />operations, the associated surface facilities will be removed, the shaft will be plugged and sealed, and surface disturbance
<br />areas will be reclaimed. The fan equipment, buildings, powerline, and poles will be removed and reused at another local,
<br />salvaged, or disposed of off-site. Concrete pads will be broken up and foundations will be demolished to at least 4 feet
<br />below grade, and the resulting concrete debris will be disposed of in the shaft opening. The shaft collar concrete will
<br />also be broken up and disposed of into the shaft opening, leaving an open space for the concrete decking, concrete slab
<br />and backfill material to be placed in the shaft void. Shaft plugging and sealing will involve construction and placement
<br />of apre-fabricated framework of steel support beams, steel composite decking and 4 inches of concrete to be placed at
<br />the bottom of the shaft collaz {approximately 20 feet below grade), which will rest on the lower shaft liner, Once this is
<br />completed, a 24-inch thick reinforced concrete slab will be constructed over the previously placed slab and decking. The
<br />concrete in this slab will also flow down and fill-in the annular space between the C-channel and surrounding strata as
<br />shown in Exhibit 26B, Section 3/S-l. This will effectively seal the plug at the interface of the plug and lower shaft liner.
<br />Also, tie-ins will be placed around the periphery of the 24-inch slab to allow for tying-in the rebaz of the reinforced
<br />concrete slab. After this slab has cured, backfill material will be placed in the void. The backfill material will be placed
<br />• to within 6 inches of the surface, and the final 6 inches will be filled with topsoil. The plug drawing is presented in
<br />Exhibit 26B, NW-Mains Ventilation Shaft Plug.
<br />TR06-52 2.05 - 105.1 05/23/06
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