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�I <br />ROM Stockpile Facilities Additions (Modified and Superseded by TR07 -59 for Wash plant II) <br />Several planned upgrades for the facilities around the ROM stack tube were completed to allow for more efficient <br />• handling of coal. These upgrades include installation of a non - powered tripper on the coal belt between the transfer <br />building and the stack tube, extension of the ROM reclaim tunnel, and installation of four additional feeders, and <br />moving the MCC No 1 Fan- House/Escape Tube. <br />The non - powered tripper on the coal belt between the transfer building and the stack tube allow for coal to be <br />dropped off the belt approximately 160 feet south of the stack tube. This reduces the amount of pushing required <br />by dozers on the pile. The structural framework was extended from the revetment at bent #4 and a tripper <br />arrangement installed on this framework. The system is arranged with moveable chutework, so that the chutework <br />can be moved into the coal stream coming off the tripper and discharge coal to either side of the revetment. The <br />design of the chutework results in an open -type discharge similar to the BOB discharge. <br />The reclaim tunnel was extended 180 feet to the west reducing the length of dozer pushes away from the tube and <br />back to a draw- point. The reclaim tunnel extension is a multi -plate arch 180 feet long, 12 feet wide, and <br />approximately 8 feet high, constructed of 8 -gauge corrugated metal plate. The liner is supported by a concrete <br />footer extending 180 feet to the west of the existing tunnel on both sides of the overland belt. The footers are 4 feet <br />wide and 2 feet thick with a 12 -inch stem wall extending 3 feet up from the footer. As part of this extension, one <br />additional feeder was installed within the multi -plate arch. Three additional feeders were installed in the ROM <br />reclaim tunnel. These feeders are located in the legs of the "H" vault area, specifically the northeast, southeast, and <br />southwest legs. Installation of the feeders in the tunnel involved connecting the feeders to existing draw -point <br />chute -work and modifying the skirtboard hoods to accept the feeder discharge. <br />The MCC No. 1 Fan - House /Escape Tube buildings were moved approximately 200 feet to the north to allow for <br />coal storage in the pad area south of Haulroad B -1. Technical Revision 18 addressed the necessary grading for <br />expansion of the stockpile to the north. The pad area is currently permitted for coal storage but is being used for <br />• temporary equipment storage. Map 24 has been revised to show this area as both ROM coal stockpile and <br />equipment/material storage. <br />When no longer needed to support coal handling operations, the concrete associated with the tunnel will be broken <br />up and buried on -site, and the steel will be either salvaged or disposed of on -site. The buildings will be removed <br />when the ROM facilities are dismantled. <br />Coal Handling System Upgrades (Modified and Superseded by TR07 -59 for Washplant IIl <br />Expansion of mine production and, coal handling capacity to 10 million tons per year required additional conveyors <br />and facilities, which were added to or replaced existing systems, to handle the increased production. The existing <br />transfer building remains and another transfer building was constructed to the south of the existing building. A new <br />Run -of -Mine (ROM) conveyor belt was installed to convey coal to the coal stacking tube /raw coal stockpile. An <br />• <br />MR09 -238 2.05 -26 06/26/09 <br />