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as existing structures that will be refurbished and relocated. The table also identifies <br />the existing structures (permitted structures prior to TR-06) not needed for the unloading <br />system that will be demolished and properly disposed. <br />The proposed coal handling system will consist of a train dump hopper (new), a reclaim <br />tunnel and belt conveyor (new) and a radial stacker (new) to unload rail cars. These three <br />components were included in the previous unloading system approved under TR-O5. However, <br />the structures constructed as part of TR-06 will be slightly larger to handle the increased <br />throughput, and the train dump hopper will be enclosed in a fabricated, metal building. The <br />existing truck dump hopper and belt conveyor, existing crusher building (refurbished), an <br />existing reclaim belt conveyor (refurbished and relocated) and the existing loading building <br />(refurbished and relocated) will be used to load tandem-trailer bottom dump trucks for coal <br />haulage to the Hayden Station Power Plant. See Exhibit 12-1, (Revision 13, dated 06/06), <br />Exhibit 12-1A, Train Unloading and Truck Loading Facilities Plan and Sections, and Exhibit <br />12-2 (Revision 10, dated 06/06) for anticipated locations and layout o£ the proposed coal <br />handling facility. <br />Railcar Unloading Facility: The rail car unloading hopper will be located slightly west of <br />the existing train loadout structure location. The hopper will be enclosed in a fabricated, <br />metal building. The hopper will be able to accommodate up to approximately 275 tons of <br />coal. Coal from the hopper will be transferred to a reclaim conveyor by a 118-inch belt <br />feeder located below the hopper. <br />Dust control for the proposed coal handling system will be by FogJetTM System (Raring <br />Corporation, Vancouver, Washington), or equivalent. A new storage building will be <br />constructed near the existing water tank to house the dust control system. <br />Reclaim Tunnel and ConveVOr: A 60-inch wide reclaim belt conveyor will be housed in an <br />inclined (16 '~°) concrete tunnel perpendicular to the railroad tracks. The reclaim belt <br />conveyor will transport coal (4,000 tons per hour) to the radial stacker. <br />Radial Stacker: The radial stacker will be a 59-inch wide by 125-feet long self-propelled <br />rubber tired unit. The stacker will be capable of adjusting the dump height to minimize <br />dust, and will slew through 160 degrees on a concrete runway. <br />Coal Storage: The coal storage pile will be kidney shaped and approximately 30 feet maximum <br />height. The stockpile will be capable of storing a maximum of 30,000 tons of coal. Tracked <br />dozers will be used to push coal from the stockpile to the dump hopper which feeds the truck <br />loading facility. <br />TR-07 15 Revised 06/06 <br />