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Water Tank <br />• A 20,000 - gallon water tank is proposed to be installed on the east side of the pump house. The tank is of steel <br />construction and will be supported, by a newly constructed 14 x 14 x 1 foot concrete pad. The location of this tank <br />is illustrated on Map 24. The tank and pad will be removed when no longer needed. <br />Surfactant Tank <br />TCC will be moving an existing 8,000 gallon storage tank to a permanent location adjacent to the Electrical Shop. <br />The tank will be supported by a concrete pad approximately 20 x 17 x 1 feet and enclosed in a metal building. The <br />building will be 20 x 17 x 20 feet and tie -in to the existing shop. <br />The building, tank, and pad will be removed when no longer required, and either placed in the portal area during <br />final reclamation, or moved off -site. <br />Additional Rock Dust Bin <br />An additional rock dust bin (Rock Dust Bin #2) was constructed next to the existing rock dust bin. The bin is <br />within a previously disturbed area where the limited site drainage is covered by a Small Area Exemption. Rock <br />Dust Bin #2 is 35.5 feet high and has a capacity of 11,000 cubic feet. The foundation is a 22 x 24 x 1 foot steel - <br />reinforced concrete slab extending 6 feet below grade. Four steel I -beam pillars support the bin. The location of <br />this rock dust bin is shown on Map 24. This additional rock dust bin and pad will be removed when no longer <br />needed. <br />Coal Handling Svstem (Modified and Super by TR07 -59 for Washplant II) <br />• The original coal handling system, as shown on Map 24 (Sheet 1/3), Surface Facilities and Freshwater Systems, <br />was designed to handle a maximum production rate of 750,000 tons per year. The system originally consisted of <br />two conveyors, a transfer building and a stacking tube. The slope conveyor (BC -101) carries coal from the <br />underground mine workings to the surface. The original design capacity of this conveyor was 600 tons per hour, <br />based on a dual 150 H.P. Dowty drive and maximum length. A hydraulic take -up is used to maintain adequate belt <br />tension. The Slope Conveyor (BC -101) discharges to the storage pile feeder belt (BC -102) at a transfer station. A <br />flop -gate in the BC -101 discharge chute allows coal or mine development rock to bypass BC -102 and be discharged <br />to a stacking conveyor. A stationary magnetic separator located over the BC -101 head pulley removes tramp iron <br />from the coal stream. The magnet is moved from its operating position to dump any collected tramp iron. <br />Conveyor BC -102 discharges to a steel stacking tube which forms a open conical storage pile. The original design <br />capacity of BC -102 was 1,200 tons per hour, however, coal throughput is primarily a function of how much coal <br />the slope conveyor can deliver. <br />In addition, the crushing, tipple, and loadout coal handling facilities in the Tipple 2 area, which were constructed to <br />serve the previous surface mining, operations, were transferred to TCC, and TCC is now responsible for ongoing <br />maintenance, permit compliance 'and final reclamation of these facilities. These facilities were permitted by <br />Colorado Yampa Coal Company under Permit C -81 -071. Design and certification information for these facilities, <br />as shown on the Surface Facilities Map, Map 24, was transferred from Permit C -81 -071 and incorporated into <br />TCC's permit (the explosives bunker located to the south of the tipple facility was also transferred to TCC). <br />• <br />MR09 -238 2.05 -23 06/26/09 <br />