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The material generated during this start-up period was stockpiled in the location shown on Figure 7b, (Prep. Plant <br />Material, Temporary Stockpile Location). Markers for easy recognition identified the material. The start-up period <br />ran for approximately two to three weeks. During the initial first few days, the plant was run for 10 hours per day. <br />Given a feed rate of 200 to 250 tons per hour, approximately 700 to 875 tons per day, or 2,100 to 2,625 tons for this <br />three -day period was generated. After the initial first few days, the plant was run 20 hours per day for a two -week <br />period. This resulted in an additional 19,600 to 24,500 tons, for this period. Therefore, a total of 21,700 tons of <br />material could be produced. The quantity was dependent upon the functioning of the plant. This material was <br />relocated to the permanent refuse pile by June 30, 1995. <br />As of May, 1999, TCC had exhausted all of the previously stockpiled low - quality coal. It was originally planned to run <br />the plant on a seasonal time -frame of April though October, unless conditions dictated it run year - round. In order to <br />accommodate this schedule, approximately 200,000 — 400,000 tons of material would have to be stockpiled near the <br />existing grizzly. The location of the stockpile is shown on Map 24. With ongoing operations, it has been determined <br />that year -round operation of the Washplant is beneficial, both minimi stockpiled quantities of low- quality coal and <br />providing a supplemental feed source for both stoker and clean coal. <br />When the Washplant and associated facilities are no longer needed, the buildings and equipment will be demolished <br />and removed and the foundations will be graded over, as part of the final reclamation for the mine. Based on the <br />final topography, all foundation structures will be below the proposed final contours; therefore, no additional bond <br />is required for the removal of the foundation materials. <br />Self - Cleaning Magnet (MR96 -141) <br />A self - cleaning magnet was installed above the Washplant feed belt immediately outside the plant reclaim tunnel. <br />This magnet is required to prevent steel from being transported into the mechanical systems in the plant with the <br />coal. The foundation is four 18 -inch concrete caissons extending 14 feet below existing grade. The support <br />structure is constructed of steel W8x31 beams and is 25 feet in height. Approximately 140 feet of steel beams was <br />used in the support structure. Electrical service is provided via a conduit mounted on the feed belt truss and tied <br />into the plant MCC room. <br />Temporary Conveyor from Rock Belt Discharge He to Low- Ouality Coal Stockpile/Washplant <br />A system of temporary conveyors including an underground feeder, conveyor structures and foundations, a radial <br />stacker, and associated power and control components was proposed from the existing rock belt discharge pile, <br />extending to the east end of the Low - Quality Coal Stockpile and the Washplant. The system was never <br />constructed, and there are no plans to construct the system in its originally proposed configuration. <br />Temporary Conveyor from the Low- Ouality Coal Stockpile to the Washplant <br />A temporary conveyor with portable feeder was proposed from the low- quality coal pile to the Washplant. The <br />system was never constructed, and there are no plans to construct the system in its originally proposed <br />configuration. <br />Stoker Truck Self- Loading System <br />TCC installed a self - loading system for the stoker trucks that were previously loaded using a front -end loader on <br />the west side of the Washplant. This system required installation of a multi -plate tunnel with two feeders, an <br />escape tube, conveyor structure, MCC building, retaining wall, and widening of Haulroad B -2. <br />A 12 -foot diameter, 10 -gauge multi -plate tunnel was buried below the existing Stoker Coal Pile. This tunnel is <br />approximately 100 feet long and buried to a depth of 14 to 15 feet below grade. A total of 100 cubic yards of <br />concrete was required to install the tunnel. Two FCM Vibratory Syntron Feeders were placed in the tunnel to <br />reclaim the stoker coal. It is estimated that 20 cubic yards of concrete were required for the feeder foundations. <br />TR08 -65 2.05 -31 07/08/08 <br />