2011-06-20_REVISION - C1981019 (2)

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RULE 2 PERMITS The coal stockpile is utilized for storage of the coal hauled from the primary crusher facility. Depending on the amount of coal in the "live" stockpile and /or the operating status of the secondary crusher, coal can be placed in temporary storage or directly discharged into the truck dump. Trucks, the reclaim conveyor, and /or a front -end loader can discharge coal into the truck dump hopper. When coal is stockpiled -at a distance to the West of the truck dump, front -end loaders reclaim the coal and feed the reclaim conveyor which transports the coal directly to the truck dump hopper. Feeders at the bottom of the hopper will discharge the coal into a secondary crusher. The secondary crusher will reduce the coal to an approximate 1 1/2 inch by 0 inch size. After secondary crushing, the coal is conveyed on a conveyor belt for discharge through a stacking tube into the crushed coal stockpile. The coal is then fed by gravity directly into unit trains which pass through a corrugated steel tunnel located beneath the crushed coal stockpile. All the conveyors are completed with walkways on both sides of the belt and are enclosed to control emissions. A bag house is installed at the secondary crusher building. Additional fugitive dust control measures for the coal crushing handling, and loadout facilities are discussed in Volume 1, Section 2.05.6. Drainage from the primary crusher will enter the active mining area. Drainage from the Gossard Loadout passes through one of three sedimentation ponds located on the northeast side of the facility as shown on the Hydrology - North Map (Map 11). Explosives Storage Area Details concerning the existing explosives storage facility are found in Exhibit 16 - Explosives Storage Facility, and Map 22, Existing Structures South. The existing storage facility is in compliance with all requirements of the Mine Safety and Health Administration and Bureau of Alcohol, Tobacco, Firearms and explosives. The Collom area explosives storage facilities are scheduled to be constructed near the western perimeter of the Plant Facilities area (See Map 22B) and will meet or exceed all MSHA and BATFE regulations. The planned configuration of the explosives storage facility (high explosive magazines area) will mirror the construction, magazine orientation and relative configuration of the existing facility. Overall volume of high explosives used by Colowyo collectively while mining activities transition over time from the existing operation to the Collom area exlusively logically dictates the number, capacity and configuration of the Collom facility magazines be similar if not identical to the existing facility to ensure sufficient magazine capacity is available at the time peak utilization of high explosives in the Collom area will occur. This logical approach is also applied to the ammonium nitrate, emulsion and Type V magazine storage area also identified on Map 22B. The configuration of this area will be very similar to the existing structures currently in use at the existing operation (Large elevated storage tanks for ammonium nitrate, a tank storing emulsion, and a designated area to park the Type V magazines -semi trailers). As these structures contain blasting materials and not high explosives, specific requirements governing their management are different and as such are separated by location from the high explosives storage area. Loadout Colowyo's loadout, the Gossard Loadout, is located at the end of the Union Pacific rail line. The only segment of the spur within the permit area is shown on Map 22A, Existing Structures North. Power Lines Because Colowyo utilizes many electric - powered mining machines, a network of electric power lines is located in the permit area to supply electricity to the equipment. The location of the supporting power Collom — Rule 2, Page 94 Revision Date: 1/23/09 Revision No.: PR -03