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XIV. Operation Description - Rules 2.05.2, 2.05.3(1 ), 2.05.3(2) and 4.01.1 <br />There has been no change in the main pit operations plan since the 1987 <br />permit renewal. <br />As shown on revised Map 23, Mine Plan, mining and reclamation <br />activities on the Danforth I Lease in Section 11 are within the current <br />dune Permit Boundary, Operations will include both a minor eastern <br />extension of the existing Colowyo multiple Seam Open Pit to recover <br />coal from the boundary between Section 10 in Coal Lease D-034365 and <br />Section 11 in Coal Lease C-29224, and a single seam dragline operation <br />in Section 11 to mine the "X" seam. <br />Section 11 will have amine life of approximately three years in the <br />single seam dragline operation and four to five years of boundary coal <br />in the existing open pit. Total recoverable coal production from <br />Section 11 is estimated at 3.6 mm tons. Reclamation will <br />contemporaneously follow the single seam operation approximately one <br />year behind mining. The extension of the multiple seam open pit will <br />be reclaimed in the same fashion as the current multiple seam operation. <br />Topsoil Removal <br />The first step in the operations plan fo <br />outlined in Section 2.05.3 of the Permit <br />Handling Map (Map 28) has been revised to <br />operations plan for topsoil handling. <br />Drilling and Blasting <br />r Section 11 is topsoil removal as <br />Renewal Application. The Topsoil <br />reflect the changes to the <br />The second step in the operations plan is to construct drill benches and drill <br />and blast the overburden to the X-seam prior to stripping. <br />ilo change in blasting practice i <br />pit, but the blasting practice i <br />the operation. The dragline pit <br />methods along the outcrop. The <br />width and will be typically shot <br />vary depending on cut depth. <br />Overburden Removal <br />s anticipated for the extension of the open <br />n the Section 11 pit will be modified to fit <br />in Section 11 will be opened by truck/shovel <br />truck/shovel cuts will average 185 feet in <br />on a 37 ft. X 42 ft. pattern, Patterns will <br />The third step in the operations plan is overburden removal. Both <br />truck/shovel and dragline stripping methods will be utilized for overburden <br />removal. Truck/shovel methods will De used predominately to open the dragline <br />cuts, although truck/shovel methods may be employed from time-to-time to <br />pre-strip high cover areas or assist in pad/ramp operations. Initial cut <br />volumes taken by truck/shovel will be hauled to the existing open pit dump <br />areas. Truck/shovel advances following the initial cuts will dump in the <br />existing open pit dump area or employ continuous haul back to backfill the <br />initial cuts. The dragline cuts will be oriented approximately north-south, <br />generally along both the geologic structure and the topographic contour. <br />-4- <br />