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_ Rule 2: Permits • After the cut through the ridge is completed, a cross ridge operation will be established on the east face. A contour cut on the lowest seam to be mined will be kept 300 feet in advance ofthe main pit area. The material from the contour cut will be pushed orhauled into adjacent fills. A solid 15-foot wide berm four feet high will be left along the outaop to keep material from going down slope in areas where overburden will not be placed above fills. After the contour cut has been established on both sides of the ridge, cuts will betaken down the center ofthe ridge on the exposed coal seams. The material from these cuts will be pushed, hauled, or cast into the open pit aeeas in the center of the ridge. This material will be graded to meet final reclamation contours and covered with topsoil or suitable material. This sequencing will minim;~r the need for topsoil storage and re-handling. Topsoil or other suitable material will be hauled or pushed from its original location to the graded areas during the mining cycle. Except for the initial cut through the ridge, the outslopes and pit areas will be graded to final contours within 1,500 ft of the active pit area except as noted. Coal will be removed as it is exposed and hauled from the pits. Shale and other extraneous material sepazated from the coal prior to loading will be left in the pit or placed with the overburden. Sediment structures will be built in advanceoftheou[cropcutforthepropercontrolofsediment. The mining operation will proceed southwest with the ridge. As fills are encountered, they will be filled with material adjacent to them. The cross ridge operation will continue until the upper end ofJeffCanyon is reached. This process is expected to continue on the ridge to the south ofJeffCanyon during the second permit term. Contour mining is scheduled to occur on both the west and east sides of the northernmost 1.5 to 2 miles of Lorencito Canyon during Years 2 and 3 ofthe next permit term. Operations will be similar to area mining, except mining will follow the Primero Seam outcrop and create a highwall ofonly 50 to 80 feet, similar to a roadcut. After initial startup cuts are completed, mining will bedone in ahaul-back method to allow current reclamation ofmined-out areas. Coal will be hauled on roads within the active mining aeeas main haul roads to be constructed along the valley floor, primazily on existing roads. Fill Construction All vegetation will be removed from the area covered by the fill and the adjacent spoil transportation zones. The vegetation will be burned or removed from the property if it has economic value. Topsoil stripping, salvaging, and replacement will occur in accordance with the plan described on pages 2.05-33 and 2.05.35. A contourcut will be taken on anycoal seams encountered within the fill boundaryand the coal removed. The material from this cut will be placed in the fill. Overburden from the mining operation will be placed in horizontal lifts with dozers in the bottom of the fill. Large rocks will be separated from the fill and worked with a dozer to construct a rock drain. This drain will run from the toe to the head ofthe valley being filled. The remaining overburden will be used to bring the fill to its designed profile and elevation. Design criteria for the fills aze provided in Exhibit 13. C~ J Lomci~oPmi-PATfI1]5)Ap~3001 wpd 2.05-1 O ~--0 (revised 08/30/01)