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West Elk Mine <br />approximately 5,000 tons of coat and/or coal fines product. If needed, the fines can be used <br />for later blending to meet coal quality specifications, or can be transported to the RPE for <br />disposal, depending on the quality of the fines. Refer to Exhibit 81 for more specific <br />information. <br />Water will be supplied to the Preparation Plant via a new 8-inch diameter buried HDPE <br />pipeline. The coal preparation plant is a closed-loop system designed to produce no effluent. <br />As a precaution, a buried HDPE discharge water pipe was installed to flow to a sediment trap <br />on the south east corner of the bench and flow to an existing LRP perimeter drainage ditch. <br />The Plant Control and Lab building is a two-story steel-sided building on the south side of the <br />plant building. The preparation plant controls and operating facilities are housed on the top <br />floor and third-party-operated laboratory facilities are housed on the bottom floor. These tab <br />facilities replace the lab facilities formerly located near crushed coat stack-tube ST-4. <br />Storage Silos <br />Two silos provide temporary storage for product coal. These silos provide the storage capacity <br />needed to accommodate MCC's production schedules and use of unit trains for shipping <br />product coal from West Elk Mine. The reinforced concrete silos provide about 24,000 tons of <br />product coat storage capacity. The silos were designed to reduce the hazard of spontaneous <br />combustion by minimizing dead storage areas within the silo compartments. <br />Crushed Product Coal Stacktube and Underground Reclaim <br />A 48-inch width conveyor belt transports crushed product-sized coal from the top of Silo No. 2 <br />to stack-tube ST-4. This stack-tube is approximately 106 feet in height and is constructed <br />similarly to the run-of=mine coal stack-tubes. The transfer structure on the top and the reclaim <br />tunnel and conveyor belt underneath the area are also similar in construction to the run-of-mine <br />coal stack-tube facilities. A dozer trap and reclaim system, located just west of the silos, is <br />similarly constructed, as well. <br />Loadout Facility <br />MCC uses a pre-weigh, over-the-track type of loadout facility at West Elk Mine. In this <br />facility, a surge bin receives the coal from the loadout conveyor. The coal is then transferred <br />to a weigh bin. Finally, the weigh bin drops a measured amount of coal into a railroad car via <br />a chute. The capacity of this system is 6,000 tons per hour. Two, double-walled (self- <br />contained secondary containment) polyethylene tanks are located west of the loadout building <br />to contain antifreeze (diethylene glycol) for treatment of coal and railcars for winter shipment. <br />One 12-foot diameter tank contains approximately 15,000 gallons of antifreeze to spray on the <br />coal as it is loaded. Another 12-foot diameter tank contains approximately 9,800 gallons of a <br />thicker antifreeze to treat the railcars prior to loading. A concrete clean-up bunker is located <br />to the east of the loadout building. The bunker is used to clean-up coal that occasionally spills <br />2.05-44 Rev. 11/{14, 113/06, 114111(, 81151716- PRI11: l18A19- TR118;118/119-TR119