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4.0 OWNERSHIP The surface and coal is owned by differententities but SCC holds coal leases on those areas proposed to be highwall mined. Refer to Exhibit 3-1 i Tab 3 of the permit application package for any details. 5.0 OPERATION PLAN SCC is replacing the previously approved The Wadge, Sage Creek, and Wolf Creek Stratigraphically, the Wadge seam is the ul seam, and another 100 to 150 feet lower penetration distance (600 feet) only the Sat vertical section. Only if the penetration maximum 1,000-Toot limit could all three topography, stratographic dips, and coal cl seams are available for recovery. Figures coal seams and the projected mining limn prevalent and will be the seams concentrate is present in only portions of the South Bloc where access is available. The mining areas 5.1 HIGHWALL MINER PLAN 1. The area will be surface mined uger system with a highwall miner coal recovery system. earns will be mined wherever possible in the South Block. ~ermost coal seam, 50 to 65 feet below is the Sage Creek is the Wolf Creek seam. Based on the expected average Creek and Wolf Creek seams would be mined in the same istance exceeds the projected 600 feet and reaches the seams be mined in the same vertical section. Surface rracteristics are the controlling factors dictating where the 12-4-1 and 12-4-2 indicate the vertical relationship of the ,. The Wadge and the Wolf Creek seams are the most f on for highwall mining operations. The Sage Creek seam < and will be potentially highwall mined only in those areas ue identified on Exhibits 123, 123a, and 123b. to the approved, existing mine plans. 2. After overburden and coal removal s completed, some highwalls and endwalls will be highwall mined, see Exhibit 123, Operation Plan Mining. It should be noted that the area as shown in Exhibit 123 is the projected final highwall location, and highwall mining areas will vary based on the exact final highwall locations and associated mining conditions. 3. Highwall mining operations will be~onducted 24 hours a day 5-7 days/week schedule, based on the current anticipated mine p duction projections. When working after dark, adequate illumination for the work areas shall be provided. 4. Coal will be extracted utilizing the ighwall miner, starting within the coal seam to maximize recovery and coal quality. The hig wall miner will take the entire thickness of the coal seam with a maximum penetration of 1,0 0 feet. 5. Coal will either be conveyed onto t~e pit Tloor or directly into the haulage trucks. If conveyed onto the pit floor the front-end loa er/dozer will stack the coal away from the highwall miner for loading at a later time. u • • PR04 12-4-4 Revised 04/04