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2.05.4 Reclamtion Plan Reclamation at the Blue Ribbon Mine is scheduled to start during the first full construction season fullowing the completion of mining in the present reserves. The initlal stage of reclamation will be to reclaim all but the sed- iment control atructurea. The final stage will be the reclamation of sediment control structures. The three mine portals will be sealed in accordance to MSNA regulations. Non-combustable fill will be placed in each portal for a minimum distance of 25'. pn 8-inch solid cinder block wall covered with mortar or gunnite will form [he final seal, see plate 16. This wall will be notched into the roof ribs and floor to create an airtight-watertight seal. The portal bench fill will be backfilled against these seals to allow them to withstand a greater hydraulic head in the event that the water level in the mine rises above the seals. Mayor inflows into the mine have been at least 80' lower than the portals and no inflows have been seen in portions of the mine higher than the portals. No detailed hydrologic studies have been done to determine the hydrologic head in the mine subsequent to mining, but these facts lead ua to believe that the water level will not reach the portal seals. The surface facilities will be removed and foundations and other non- combustable, non-toxic material will be used in the backfill of the portal bench and the acceea road. Blue Ribbon has been granted a variance from approximate original contour restoration under provision 2.06.5(2). Refer to stipulation response No. 3. Blue Ribbon plane on backfilling the mine bench area with material obtained from the undisturbed hillside directlq south of the bench. Exhibit F-2 shows the approx- imate final contours of both the mine bench area and the hillside borrow area. The mine bench area backfill shall be placed on approximately a 15° slope from the edge of the mine bench to the highwall. This will leave approximately a 35-foot highwall. The hillside borrow area shall be excavated to a slope no greater than 25°. The work shall be accomplished using a combination of a bulldozer and front end loader. 108 (Rev. 8/30/85)