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Coal haulage in this black will be conducted on the Mine Entrance Road and (Haul Roads A, F, and H.} The <br />empty trucks will be brought into the mine site via the Mine Entrance Road and then traverse Haul Road A • <br />and, in some cases, into the pit area. From Haul Road A or H, the trucks will branch off to in-pit ramps, <br />depending on the location of coal loading operations. The coal beneath a portion of Haul Road A will not be <br />recovered until 1995 as shown on Exhibit 12-2. This will allow access to fhe upper block of coal to remain <br />open. The loaded trucks will continue through the pit area and down Haul Road F to the Mine Entrance <br />Road. Weather or unanticipated production problems may cause some deviation of the haulage scheme and <br />loaded trucks may be brought back down Haul Road A. <br />Although Haul Roads B and C may never be constructed, they will remain a part of this plan. In the event <br />that unforeseen problems arise with the proposed haulage system, roads Band/or C may have to be <br />constructed as altemate routes. <br />Middle Block (Deadhead Routel. Mining in the middle block will commence in the fall 1992. The dragline will <br />sidebench the first pit on the east side and cast the spoil behind, or to the west, of the dragline. This will be <br />accomplished as the dragline moves from the Lower Block to the Upper Block. The next cut in this area will <br />be accomplished as the dragline moves back to the Lower Block from the Upper Black. The final cut in this <br />area is expected to take place in 1993 on a subsequent move from one area to the other. Exact timing of the <br />mining of this block is subject to the mining operations in the Upper and Lower Blocks and may deviate from <br />the above schedule. <br />Coal haulage from this area will be conducted via Haul Road A and Haul Road G. Haul Road A will be <br />extended to the Upper Block on or near the Deadhead Route area as shown on Exhibit 12-2. <br />Upper Block. A box cut will be opened in fhe center of the upper block in 1992. Scrapers will most likely be <br />used to assist the dragline in unwvering the coal, especially in the northwest (tower) end of the box cut and <br />possibly the cropline coal on the east side. The overburden depth in this area approaches 90 feet. As stated <br />earlier, the dragline will alternate between this block and the lower block. The neM pit in this area will be in <br />1993, adjacent to the box cut. Pit progression will take place on both sides of the box cut. As with the lower <br />block, this schedule maybe deviated to adjust for unforeseen circumstances and the pit sequenced may vary <br />from that shown on Exhibit 12-2. The economic recovery line should be reached in 1996. <br />Haulage to and from this area will be on Haul Roads A and G. The empty trucks will proceed to this block up <br />Haul Road A. The loaded trucks will travel down Haul Road G. In good weather Haul Road G may be used <br />as both an in and out road. <br />South Block The pit layout in the south block deviates from the general mining configuration in the areas to <br />the north where the pits are aligned perpendicular to the coal cropline. In the south area, pit configuration is <br />constrained by a steepening of the dip of the coal seam and the resulting rapid increase in overburden depth <br />as mining progresses away from the cropline. In this area, mine pits and progressive development will occur <br />parallel to the cropline. Development of the south block will proceed directly from the final cut in the lower <br />PR-05 8 Revised 01/06 <br />