2010-11-17_PERMIT FILE - C1982056A (3)

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• Colorado Yampa Coal Company under Permit C -81 -071. Design and certification information for these facilities, as shown on the Surface Facilities Map, Map 24, was transferred from Permit C -81 -071 and incorporated into TCC's permit (the explosives bunker located to the south of the tipple facility was also transferred to TCC). The tipple /loadout facilities include the Run -of -Mine (ROM or "Belt- Out - Back ") stockpile, truck dump, crushing facilities (primary & secondary), conveying facilities, sampling facilities, finished product (Tipple) stockpile, stoker belt and dump, stoker product stockpile, conveyor belt and stacker for coal stockpile, train loadout, and trackage, and access and temporary storage site for cleaning spilled coal from loadout tunnel. Of the above structures (as discussed in the following sections), the following are identified as existing structures, transferred from Permit C -81 -071: Structure Dimension (LxWxH) Raw Coal Conveyor 126' x 10'(dia) ROM Coal Conveyor 168' x 10'(dia) ROM Coal Stockpile (doesn't include latest expansion area) Reclaim Tunnel 537' x 20'(dia) Primary Crushing Building 54' 27' x 48' Primary Crusher Secondary Crusher Building 42' x 42' x 68.4 Secondary Screen and Crusher Sampler Building 58.8' x 27' x 55.2' Stacking tube Finished Product Stockpile Conveyor Belts Truck Dump Tipple Site Train Loadout Trackage (doesn't include latest extension) Office 48' x 185' x 36' Foundation Concrete footers/ trusses Concrete footers Concrete Concrete Concrete & Crusher Concrete Concrete (Note: Foundations are typically 1- 1.5 foot thick concrete slabs with columns) • Main ROM Coal Stockpile (Located Near Portal) and Stockpile Expansion Review of coal handling systems and operations resulted in recognition of the need for increased coal stockpile capacity. In order to provide the required additional capacity, the coal stockpile area was expanded to the north and west in conjunction with site preparation and grading for the Coal Preparation Plant. Expansion required relocation and reconstruction of Pond E and the associated ditches, elimination of the segment of haul road which traversed the north edge of the stockpile area, and limited backfilling and grading work to expand the stockpile area. The stockpile expansion area was graded so that the base of the pile slopes to the north toward relocated Haul Road B -2. The stockpile expansion area is shown on Map 24, and required expansion activities are described under the appropriate section for each of the effected facilities. The stockpile expansion increased total capacity for the main stockpile area to approximately 600,000 tons. Most of the area affected by the ROM stockpile expansion, was previously disturbed; therefore no topsoil remains. Plant growth media recovery, however, occurred for the small area shown on Map 24, between the existing Pond E embankment and Haul Road B -2. Up to 4,170 cubic yards of plant growth media was recovered and stockpiled in stockpile (PPSP -2), located to the northeast, from an area approximately 752 x 100 feet (recovery depth approximately 1.5 feet). The reconstruction of Pond E required the removal of approximately 9,300 CY of topsoil from an area approximately 150 x 7,210 feet, with an average soil recovery depth of approximately 28 inches. Approximately 3,000 CY of the topsoil was placed in Stockpile SF -4, while the remaining 6,300 CY was placed in Stockpile PPSP -1. Table 49a was revised to reflect these topsoil salvage and stockpile volumes. MR.10 -246 2.05 -24 08/16/10