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Saban - 2.05.4 <br />from the portal surface openings. The portal entries will then be backfilled from the seals to the <br />• portal openings with soil and broken rock materials and portal and face-up azeas backfilled and graded <br />to completely cover all portal stmctures, establish a stable slope configuration, and eliminate exposed <br />highwall areas. A permanent shaft seal will be constmcted/installed on the GGulch Ventilation Shaft <br />in accordance with applicable provisions of Rule 4.07. Two options exist for shaft sealing; <br />1. Approximately 2.5 feet of soil material was removed prior to shaft constmction leaving the shaft <br />collar below natural grade. A permanent reinforced concrete cap with vent pipe, complying with <br />applicable MSHA requirements, could be placed over the shaft opening. <br />2. A false deck could be established by installing lateral support beams into the ring beams within <br />the shaft collar and placing decking over the support beams using either steel plate or expanded <br />metal and reinforced concrete. The remainder of the collar would be backfilled with material <br />previously excavated doting shaft constmction. <br />The preferred method will be determined through discussion with the DMG prior to final reclamation <br />and implemented to assure effective shah closure. All equipment, buildings and above ground <br />structures will be dismantled and removed from the site. All concrete foundations will be demolished <br />to at least two feet below surface and the resulting concrete nibble will be used as backfill or buried in <br />place. <br />Final backfilling and grading will be completed to create a stable final topography appropriate to the <br />posttnining land use. The final topographic configuration of the Sanbom Geek Mme area is shown <br />by the Facilities Postmining Topography Map, (Maps 2.05-M6), and the Postntining Cross-Sections, <br />(Map 2.05-M7). The existing highwall near the porals will not be rechtimed since it is stable and u <br />ako the cut slope for the existing road connecting the Sanbom Creek road and old State Highway <br />• 133, which will remain to provide long-term access following completion of ntinurg and reclamation. <br />The culvert in Sanbom Geek and the culvert near the mine portals will be left in place since they <br />provide necessary drainage control for the adjacent railroad bed. <br />Degasificarion wells CBM-1 through CBM-11, and fire control and monitoring boreholes SCWF-1 <br />and SGGM-1 through SGGM-10 have been or will be plugged and sealed in accordance with <br />applicable provisions of Rule 4.07. Associated surface disturbance areas, including roads will be <br />reclaimed in conjunction with reclamation of the Sanbom Creek Mme facilities areas once mining <br />and/or degasification in the Sanbom Geek Mme has ceased. <br />The pre-disturbance land use of this area was undeveloped land and historic mining activities. T'he <br />affected lands will be reclaimed consistent with the undeveloped land tsse while maintaining access <br />through the area and to adjacent public lands. As previously noted, the Sanbom Geek road will be <br />re[ained to provide long-term access. <br />Soil Replacement - As previously discussed, there is a shortage of soil for replacement over the entire <br />disturbed area associated with the Somerset Mme area, which included portions of the Sanbom Geek <br />Mute area. During constmcuon of the Sanbom Creek surface facilities, some soil material was <br />salvaged from areas not previously disturbed and stockpiles. Since limited topsoil is available, the <br />stockpiled soil material will be used in this area only if sampling indicates that surficial materiak are <br />not suitable as a revegetation growth medium If soil is required, it will be replaced only in those areas <br />where it is needed. replacement will be at a uniform depth of 6 co 12 inches, and the replaced soil will <br />be seeded and mulched as soon as possible following placement to m+nim~>p the potential for loss due <br />to wind and water erosion. If soil u not required in this area, available stockpiled soil material will be <br />• used on other areas where it is needed to support final revegetation. <br />Revegetatron - In accordance with an agreement with the DMG, a vegetation study was conduced <br />for the Bear Creek and Hubbard Geek disturbance areas and adjacent undisturbed areas during the <br />PR04 2.05-61 Revised May 2001 <br />