2013-11-05_PERMIT FILE - C1981022A (2)

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Semon - 2.05.3 development from the point where the mains rum to the west will be in the D Coal Seam, development work will also involve mining of the recoverable coal reserves within the mine development areas. All proposed D Seam development is designed to accommodate possible future longwall mining of currently unleased Federal coal reserves to the north and west. OMI submitted an application for the Federal Coal Lease in August 1977 and the required Environmental Impact Statement was completed and agency (BLWLEFS) decision documents were published in March 2000. Lease approval and issuance are anticipated in second quarter 2000. Proposed future longwall operations in the D Coal Seam will be similar to those previously discussed for the B Seam The location and configuration of the Elk Creek Mute portals and associated surface facilities are shown on the General Facilities Map, (Map 2.05 -M1). The main decline entries, maim entries extending to the west, and longwall panels are shown on both the General Facilities Map, (Map 2.05 -MI), and the Mine Plan Map, (Map 2.05 -M2). Proposed development mining within OMI's privately-held fee coal reserves is differentiated by notation on the Mme Plan Map from potential future mining in the unleased Federal coal reserves to the north and west. Muting in the D Seam is currentlyplanned to extend under areas of up to 2,500 feet of cover. Operating experience in the initial deep cover areas will determine whether mining can be extended further for subsequent longwall panels. With high productivity longwall mining, coal recovery of 75 percent or greater is anticipated and subsidence factors, including angle of draw and surface subsidence limits, should be similar to those previously determined for the B Seam based on subsidence analyses (Abel, 1998) for the D Seam operations included in Exhibit 2.05 -E2, Geotechnical Design and Stability Analyses. Elk Creek Coal Handling, Support, and Ancillary Facilities - Goal from other mines in the area may be hauled to the Elk Creek facilities to be stockpiled and loaded out through the batch -weigh train loadout. Goal hauled to the facilities for loadout is delivered from State H%hway 133. The coal haul trucks use a designated haul road to deliver coal to the stockpile areas or to the dump station. Typically, 28 -ton capacity, 18 -wheel end- or belly dump trucks deliver coal from outside sources to is the facilities. Smaller 10 -wheel end -dump trucks that haul about 10 tons may also be used occasionally. Coal from the Sanborn Creek or Elk Creek Mines will typically be placed in stockpile but may also be routed directly to the coal storage silo or batch -weigh train loadout. Crxal will normally be transferred from the mines to stockpile by conveyor. Overland conveyors will run from both the Sanborn Creek and Elk Creek Mme portals to Stacking Tube No. I and the main Elk Creek coal stockpile. A transfer station on the Sanborn Creek Mme overland conveyor will also allow coal to be routed to the East Yard coal stockpile stacking conveyor. Modifications to the surface coal and mine waste handling systems in conjunction with the mine expansion initiated in 1995 included: • Modification of the Sanborn Creek Mute overland conveyor to increase capacity to a maxonnun of 4,800,000 tons per year • Extension of the exacting Elk Creek culvert to the north • Grading of present Elk Creek coal stockpile area to extend it to the north, east, and west • Clearing of the lower valley slopes to provide for dead coal storage • Construction of two coal stacking tubes and a coal distribution system • Installation of a sub -grade coal reclaim system from the stockpile area to the present dump station PR04 2.05 -7 Revised August 2000