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SEtriar - 2.05.4 from the portal surface openings. The portal entries will then be backfilled from the leak to the pottal openings with soil and broken rock materiak and portal and face-up areas backfilled and graded to completely cover all ortal strucrures, establish a stable slope configuration and elirtvnate exposed lu hwal az ~. A'permanent s a t sear e~d/ttLStalled on the GGulch Ventilation Shaft in accordance with applicable provisions of Rule 4.07. Two options exist for shaft sealing: Approximately 2.5 feet of soil material was removed prior to shaft constmction leaving the shaft collar below natural grade. A permanent reinforced concrete cap with vent pipe, complying with applicable MSHA requirements, could be placed over the shaft opening. 2. A fake deck could be established by installing lateral support beams into the ring beams within the shaft collar and placing decking over the support beams using either steel plate or expanded metal and reinforced concrete. The remainder of the collaz would be backfilled with material previously excavated during shaft construction. The preferred method will be deterrrtined through discussion with the DMG prior to final reclamation and implemented to assure effective shah closure. All equipment, buildings and above ground structures will be dismantled and removed from the site. All concrete foundations will be demolished to at least two feet below surface and the resulting concrete rubble will be used as backfill or buried in place. Final backfilling and grading will be completed to create a stable final topography appropriate to the postmirtirtg land use. The final topographic configuration of the Sanborn Creek Mme azea is shown by the Facilities Postmining Topography Map, (Maps 2.05-M6), and the Posttnining Goss-Sections, (Map 2.05-M7). The existing highwall neaz the portals will not be reclaimed since it is stable and is ako the cut slope for the existing road connecting the Sanbom Geek road and old State Highway 133, which will remain to provide long-term access following completion of training and reclamation. The culvert in Sanbom Geek and the culvert neaz the mine portak will be left in place since they provide necessary drainage control for the adjacent railroad bed. Degassification borehole TG3 and fire control and monitoring boreholes SCWF-1, and SCGM-1 through SOGM-10 will be plugged and sealed in accordance with applicable provisions of Rule 4.07, and associated surface disturbance auras, including roads, will be reclaimed in conjunction with reclamation of the Sanborn Creek Mine Facilities areas once twining in the Sanbom Leek Mme has ceased. The pre-disturbance land use for this area was undeveloped land and historic training activities. The affected lands will be reclaimed consistent with the undeveloped land use while maintaining access through the area and to adjacent public lands. As previously noted, the Sanbom Creek road will be retained to provide long-term access. Soil Replacement - As previously d'acrused, there is a shortage of soil for replacement over the entire disturbed area associated with the Somerset Mme area, which includes portions of the Sanbom Creek Mute area. During construction of the Sanbom Leek surface facilities, some soil material eras salvaged from areas not previously disturbed and stockpiled. Since limited topsoil is available, the stockpiled soil material will be used in this azea only if sampling indicates that surficial materials are not suitable as a revegetation growth medium If soil is required, it will be replaced only in those areas where it is needed, replacement will be at a.uniform depth of 6 to 12 inches, and the replaced soil will be seeded and mulched as soon as possible following placement to ^~~^~~^i~P the potential for loss due to wind and water erosion. If soil u not required in this area, available stockpiled soil material will be used on other areas where it is needed to support final revegetarion. Revegetation - In accordance with an agreement with the DMG, a vegetation study was conducted for the Bear Creek and Hubbard Geek disturbance areas and adjacent undisturbed areas during the PR04 2.05-61 Revised August 2000