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line. After removal or demolition of the buildings, structures, and conveyors, the related concrete foundations will <br />be demolished. Any concrete or structural debris resulting from demolition of the Washplant facilities and related <br />foundations will either be placed in the mine portal area and buried, or disposed of off-site. The associated <br />disturbance areas will then be backfilled and rough-graded to blend with surrounding terrain. In conjunction with <br />• site regrading, any surplus fill material not required to establish the design postmining configuration will either be <br />hauled back to one of the original the borrow sites, or if suitable material, may be used as cover for the Coal Refuse <br />Pile. After structure removal and backfilling, the site will be topsoiled and seeded with the approved seed mixture. <br />The topsoil replacement will involve redistributing the 9,300 CY of topsoil that was placed in stockpile SF-4 (3,300 <br />CY) and PPSP-1(6,000 CY). The 4,170 CY of plant growth media placed in stockpile PPSP-2 will be redistributed <br />over the area from which it was removed. <br />During review of TR94-18, a concern was mined over the postmining elevation, and if the foundation would be <br />below grade. The bond for the technical revision was established using the worst-case estimate that the foundation <br />would have to be removed and the site then regraded. The map and certification presented in Exhibit 26B, <br />Postmining Topography Evaluation, shows that the foundation could be at the surface upon completion of Final <br />grading, however given the ability to fine tune the grading plan ~ the field, it would be possible to keep the <br />foundation three feet below grade. As opposed to modifying the bond or the present reclamation plan, it is TCC's <br />intent to have the foundation removed prior to final grading. TR 02-40 provides the updated bond estimate for <br />removing the piers at the Washplant I facilities. This includes the Washplant, Refuse Bin, Thickener, and two <br />magnetite bins. This final bond estimate addresses Stipulation 46 presented in the Mid-Term Permit Review. <br />Fish Creek Ventilation and Dewaterine Borehole (Revised - MR07-2161 <br />The Fish Creek Ventilation Borehole/Dewatering Site will require a minor amount of work in order to reclaim the <br />site. The work includes: fan, fan control equipment, fan building, and duct-work removal (previously completed); <br />pumphouse removal; demolition of concrete pads and removal of concrete demolition debris; plugging and sealing <br />of the well bore and casing; stubbing-off and capping buried piping; powerline removal; road removal; and topsoil <br />replacement and seeding. <br />•The Fish Creek Ventilation installation had a useful life of approximately seven years, until the first set of longwall <br />panels were mined-out. The fan building, duct-work, and fan have been removed from the site. The borehole was <br />temporarily sealed, as described in the response to Rule 2.05.4(2)(g), and was used only for discharge from the <br />excess flow diversion line from the Fish Creek water treatment system. In 2007, the shaft installation was modified <br />for use as a dewatering well to replace the inoperable Fish Freek South Dewatering Borehole. At the time of final <br />reclamation, the pumphouse for the dewatering well will be removed, the connecting pipeline will be stubbed-off <br />and capped below grade, the connecting powerline will be removed, and the concrete pads will be broken up and <br />the concrete removed from the site. The concrete demolition debris will either be hauled to the refuse site for <br />disposal or hauled to a landfill. <br />Final reclamation of the 36-inch diameter casing will involve excavating down 4 feet from grade around the casing, <br />cutting off the steel casing 3 feet below grade, hanging steel decking from the top of the cut-off casing (this decking <br />will be 30 feet below the top of the cut-off casing), placement of 30 feet of concrete in the 36 inch diameter casing, <br />and backfilling the excavated area. The 30 foot x 3 foot diameter cement plug will weigh approximately 32,000 <br />pounds, which will be adequate to resist the calculated hydrostatic pressure and provide an effective seal. The <br />access road will be graded to blend with the surrounding terrain, and the culvert will be removed. The entire area <br />will be topsoiled and seeded with the appropriate seed mixture. <br />• <br />MR07-216 2.05-103 05/28/07 <br />