2008-01-11_PERMIT FILE - C1982056A (2)

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gateroad. The Northwest Mains will continue in this direction towards the fault that currently runs between the Northern (NMD) and Western Mine Districts (WMD). Development mining will then explore the extent of the fault. After exploring the extent of the fault, the Northwest Mains will again be turned in the northwest direction to • access the northern reserves. This orientation of the Northwest Mains will continue to provide for driving the entries at an angle to the cleat. The location and orientation of the panels and the mains are shown on Map 23. It can be noted that the panel lengths increase with the 19-Right panel and continues with the mining of the panels in the Northern Mining District. The 16-Right panel will be shortened by approximately 500 feet due to the adverse roof conditions encountered during the driving of the gate road. TCC will maximize the mining of this panel as dictated by roof conditions. The projection for the panel is shown on Map 23, although the length of the panel may be shortened due to the adverse roof conditions. NMD (Panels 12-Right through 16-Right, PR99-05; 17-Right through 23-Right, PR03-06; 21-Right through 25-Right, and WMD (Pane112-Left through 17-Left (preliminary development) - PR06-07, TR07-63) The NMD will increase the affected area within the permit, i.e. area overlying longwall panels, gateroads and mains, by approximately 5,600 acres. The area to be mined in the NMD permit term is shown on Map 23 Mine Plan. The permit area is identified by the color coding used in creating the map. The mining layout will include longwall panel lengths up to approximately 15,000 feet, a longwall panel width of 1,000 feet, and gateroad, and mine development work as described in the referenced Permit Revisions. The dimension of pillars in these development areas may vary based upon mining conditions. Sumps and ventilation doglegs will be added as needed. Locations for these minor operational features are not provided on Map 23, due to the need for some flexibility in the placement of these features. Initial development in the WMD will increase the affected area within the permit, i.e. area overlying longwall panels, gateroads and mains, by approximately 200 acres. The areas to be developed and/or mined in the NMD/WMD during the current permit term are shown on Map 23 Mine Plan. Alignment of development entries • may be adjusted, as necessary, to address geologic conditions. The preliminary development layout will include main and submain development work as described in the referenced Permit Revisions. The dimension of pillars in these development areas may vary based upon mining conditions. Sumps and ventilation doglegs will be added as needed. Locations for these minor operational features are not provided on Map 23, due to the need for some flexibility in the placement of these features. During the NMD and initial WMD development permit term, preliminary development work and longwall mining will be conducted under the Foidel and Fish Creek AVF's, Fish Creek, the Union Pacific Railroad, several powerlines, two reservoirs owned by the Ashleys, and several stock ponds. Amore detailed discussion of undermining these structures is presented under the subsidence discussion. Because the preliminary development work (WMD, and NMD, Panels 22-Right through 25-Right) will be limited to main and submain entry development, no subsidence is associated with these activities. Underground Drillholes (MROl-172 -Withdrawn 07/11/01) ~) Mine Facilities ~) A narrative and maps to meet the standards prescribed in 2 10 describinE the location, construction modification use maintenance and removal of mine facilities in the perrrut area mcludme all buildings structures and utility corridors. RESPONSE The existing Foidel Creek Mine surface facilities consist of building structures, material handling system, utilities, •and surface areas as shown on Map 24, Surface Facilities. Previously disturbed areas within the surface facilities area maybe leveled and then utilized for additional storage. TR07-63 2.05-17.2 09/14/07