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Surface Facilities
<br />The surface facilities transferred to TCC and CYCC will be reclaimed as follows:
<br />. Remove any buildings or structures and then grade the disturbed area(s) to blend with the sun•ounding terrain. The
<br />buildings and structures will be buried at the base of the highwall. Soil materials will be replaced in the amounts and
<br />locations shown on Map 29, Reclamation. Following topsoil redistribution, the areas will be seeded with the
<br />appropriate seed mixture. The re-grading, topsoil, and seeding will be done in accordance with the plan and applicable
<br />regulations.
<br />As shown on Map 29, topsoil from Stockpiles SF-1 and SF-2 will be redistributed over the eastern end of the surface
<br />facilities. Topsoil from Stockpile SF-3 will be redistributed over the office/bathouse area, portal area, warehouse azea
<br />and part of the existing waste-rock dump. This topsoil is from the stockpile relocated from the backfill pad to SF-1.
<br />Topsoil from Stockpile SF-4 will be redistributed in the wazehouse area. Topsoil from Stockpile SF-5 will be
<br />redistributed in the road corridor. Topsoil from Stockpile SF-6 will initially be redistributed over the waste pile in order
<br />to minimize the need to relocate Stockpile SF-6 while establishing pem~anent perimeter drainage control for the waste
<br />pile. The remainder of SF-6 will be redistributed over the office area, road corridor, tipple azea, original waste-rock
<br />dump, and batch-weigh loadout facilities areas. Topsoil from Stockpile SF-11 will be redistributed in the road corridor.
<br />Topsoil from the footprint of the new waste pile area was salvaged and added to topsoil Stockpile SF-12. A maximum
<br />of 154,880 CY was stripped (18 inches over the azea of the pile) and placed in Stockpiles SF-12, 13, and 14. The
<br />majority of the topsoil placed in Stockpile SF-12 will be redistributed over the waste pile during the reclamation
<br />process with the exception that offsetting yazdage from the waste pile utilization of Stockplle SF-6 will be used as
<br />necessary from SF-12 to cover the office azea, road comdor, tipple area, original waste rock dump, and batch weigh
<br />loadout facilities areas originally slated to be topsoiled from Stockpile SF-6. Additionally, "clouds" have been placed
<br />around those topsoil stockpiles dedicated to a particulaz disturbance azea. Those stockpiles are SF-9 and 10 -railroad
<br />tract extension, SF-7 -coal stockpile expansion azea, W W"I'F -waste water treatment facility, RDT-1 - rockdust tank,
<br />•FCB-1, 2, 3, and FCVF-1 -Fish Creek Bore Hole area, and SSS-1 -power borehole.
<br />Fish Creek Dewaterina Site
<br />The two Fish Creek Dewatering boreholes will be permanently sealed by placement of a cement plug within each
<br />casing. The plug, for each borehole, will extend within 10 feet of the surface. The following information addresses
<br />the hydrostatic conditions that will exist in the plugged boreholes:
<br />Facility/ilnit Elevation
<br />Boreholes 6,788
<br />Portal 6,800
<br />Mine roof at boreholes 5,729
<br />Wadge Overburden water level 6,967
<br />Given the above information, a cement plug 1,059 feet in length and 8 inches in diameter will be placed in each of
<br />the boreholes. The hydrostatic presswe at the bottom of these plugs equals the head existing between the portal
<br />elevation and the mine roof elevation at the borehole plus the Wadge Overburden aquifer head. Therefore, the total
<br />hydrostatic pressure at the bottom of the concrete plug equals 536 psi. Using a cement weight of 150 lbs/cf the
<br />concrete will weigh 55,449 lbs. The water force equals 26,956 lbs. Therefore, the hydrostatic pressure is
<br />approximately one-half the weight of the cement plug, and the plugs should be adequate to effectively seal the
<br />boreholes.
<br />The Fish Creek Dewatering Area will be regraded following removal of the facilities. Topsoil stored adjacent to the
<br />site will be spread evenly over the regraded surface. After the power system of the Fish Creek Dewatering Site is no
<br />longer required, the substation will be removed and the area reclaimed. The reclamation activities for the dewatering
<br />f~oreholes substation include the following: fence removal, pole removal, transformer removal, wncrete pad removal,
<br />topsoil replacement, and seeding. The azea will be seeded with the rangeland seed mixture. The topsoil will be bladed
<br />over the gravel, or if other gravel is needed for road maintenance, it will be removed and placed on the appropriate
<br />section of land. Approved permanent access roads will remain intact for use by the surface owner. During the 10-yeaz
<br />MR07-216 2.05-I Ol 05/28/07
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