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low quality coal, which was stored prior to blending when conditions allowed. <br />• Reclaim Tunnel and 42-Inch Conveyor. A reclaim tunnel is located beneath the coal stockpile and the associated <br />conveyor is used to transport the coal from the coal stockpile to the screening and sizing building. <br />Screening and Sizing Building. The screening and sizing building is used to screen and size the coal. Included in the <br />building are screens, a rotary breaker, and associated conveyor belts. In the screening and sizing building, coarse <br />reject is separated from the coal and then hauled by truck [o the waste disposal site. Screened and sized coal is then <br />transferred to the 36-inch overland conveyor. <br />36-inch Overland Conveyor. The 36-inch overland conveyor transports the coal to the sample building. Coal samples <br />are taken at the sample building for quality control. <br />Raw Coal Storage Conveyor. The raw coal storage conveyor is an inclined conveyor, which transports the coal to the <br />10,000 ton storage silo from the sample building. <br />10,000 Ton Storage Silo. The 10,000 ton storage silo is used to feed coal to unit trains. The unit trains then haul the <br />coal to market. Due to the fact that the storage silo is a very important part of the coal handling operation and that <br />underground mining had been conducted immediately beneath the storage silo area, a stability analysis was conducted <br />for the storage silo area. The stability analysis indicated that the construction design of the storage silo was adequate. <br />Waste Water Treatment <br />Approval to construct a wastewater treatment facility was attained from the various regulatory agencies in 1982. The <br />construction of the facility was completed in late 1982. <br />• The main component of the treatment facility is the aerated lagoon, comprised of two cells, and the polishing pond. <br />Other components include oil water separator, sewer lines from the bathhouse, shop, and laboratory, a lift station, and <br />a discharge ditch. The discharge flows into the Williams Fork River and is compliance with the NPDES permit. The <br />wastewater treatment facility is located to the southeast of the shop between the railroad spur and the Williams Fork <br />River. <br />Mine Water Handling System <br />The mine water handling system is located to the north of the office and shop facilities. The mine water system is <br />used to settle solids before the water is discharged into the Williams Fork River. The system has been designed to <br />handle all water that was pumped from the No. 5 mine and all water that pumped from the No. 6 mine. A detailed <br />description of the system follows. <br />Background <br />It was originally planned to drill two boreholes (approximately 20 inches in diameter) from the hillside adjacent to the <br />planned pond location into a low area of the mined-out section of the No. 5 mine. However, due to the amount of <br />water encountered in one of the boreholes (approximately 400gpm), this location was abandoned. The borehole, <br />which encountered water, is now being used as a ground water monitoring well for the Middle Sandstone. The other <br />borehole has been sealed. <br />New borehole locations were selected and approved by the MLRD in November, 1982. They are located in the <br />Williams Fork River Valley. Refer to the Structures and Renewable Resources Map (Map 25) for locations. <br /> <br />MidTerm Response 2.05-10 1 ~ ~~ Revised 12/05/01 <br />