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Following removal of structures and equipment and plugging and sealing of the shaft; road surfacing materials and <br />culverts will be removed and disposed of off-site; and the shaft pad and access road disturbance areas will be regraded to <br />reestablish effective drainage and blend with the surrounding terrain. „Stockpiled andiwindrowed topsoil will then be <br />replaced on those disturbed areas where it was previously removed, and the areas will be seeded with a pastureland seed <br />mixture. <br />•In reference to the thickener underflow project, the reclamation work will involve removal of the pump, hosing and <br />piping, pump platform, support beams, powerline and poles, transformer, concrete pad, and grounding bed. The pump <br />will be removed from the pit, along with salvageable components, and then the remainder of the platform and support <br />beams will be dozed into [he pi[. The powerline and poles and transformer will be salvaged and the concrete pad will be <br />dozed into the pit. The grounding bed will be disconnected and left in-place and covered during the backfilling and <br />grading of the surrounding area. The area then will be [opsoiled and seeded in conjunction with the reclamation of the <br />entire portaUfacilities area. ~ , <br />18-Right Ventilation Shaft (TR04-44) <br />When the 18-Right Ventilation Shaft and emergency hoist equipment aze no longer required to support ongoing or future <br />mining operations, the associated surface facilities will be removed, the shaft will be plugged and sealed, and surface <br />disturbance areas will be reclaimed. The emergency hoist equipment will be removed and reused at another locale, <br />salvaged, or disposed of off-site. Concrete pads will be broken up and foundations will be demolished to at least 2 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 slab and backfill <br />materiaUshaft cuttings to be placed in the shaft void. A cement plug shall be placed in the bottom fifteen feet of the shaft <br />and the remainder of the shaft will be filled with inert material including the shaft cuttings and collar excavation <br />materials. A cement plug will be poured from ten feet below grade to, within approximately three feet of the surface. <br />The remaining three fee[ will be filled with soil and graded to blend with the surrounding terrain. <br />As noted on page 2.05-45.4, any required pressure-grout boreholes will be sealed at the time of construction. <br />Cement grout will be pumped through the boreholes to seal any wet Tones encountered and the boreholes will be <br />.filled with grout and allowed to set-up on completion of grouting operations. Any surface casing extending above <br />ground surface would be cut-off flush with or below natural ground level. <br />Following removal of structures and equipment, and plugging and sealing of the shaft; any cuttings remaining in the <br />temporary mine waste disposal pit will be covered with excavated shaft collaz material; road culverts will be removed <br />and disposed of off-site; road-base and surfacing materials will be removed and placed on the shaft pad; and the shaft <br />pad and access road disturbance areas will be regraded to reestablish effective drainage and blend with the surrounding <br />terrain. Cover over any cuttings remaining in the cuttings pit will be a minimum of 2 feet of suitable material, and the <br />postmining configuration will approximate the premining contours. As-built certification will be provided to the <br />CDMG following final closure, backfilling, and grading of the cuttings pit. Any excess road-base and surfacing <br />materials not required to reestablish approximate original contour will be hauled off-site and disposed o£ Stockpiled and <br />windrowed topsoil will then be replaced on those disturbed aeeas where it was previously removed and seeded with a <br />pastureland seed mixture. <br />6-Main North Ventilation Shaft (TROS-48, MR06-208, MR06.2I0, MR06-2121 <br />When the 6-Main North Ventilation Shaft and supporting equipment and boreholes are no longer required to support <br />ongoing or future mining operations, the associated surface facilities will be removed, the shaft will be plugged and <br />sealed, and surface disturbance areas will be reclaimed. The supporting equipment and any structural steel or tanks will <br />be removed and reused at another locale, salvaged, or disposed of off-site. Buried utilities will bestubbed-off below <br />grade and abandoned. Concrete pads will be broken up, and foundations will be demolished to at least 2 feet below <br />grade, and the resulting concrete debris will be disposed of in the shafr opening. The shaft collar concrete will also be <br />broken up and disposed of into the shaft opening, leaving an open space for the concrete slab and backfill materiaVshaft <br />cuttings to be placed in the shaft void. A cement plug will be placed in the bottom fifteen fee[ of the shaft and the <br />.emainder of the shaft will be filled with inert material including the shaft cuttings and collar excavation <br />MR06-212 2.05 - 106 10/31/06 <br />