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Str>7me - 2.05.3 point for the new batch-weigh loadout. Silo modifications included modification of the headhouse to • accommodate an increase in the width of the silo feed conveyor and address existing dust control concerns and modification of the discharge chutes and gates to feed a new batch-weigh loadout transfer belt at a rate of 6,000 tons per hour. The new transfer conveyor rtms from the silo discharge point to the new batch-weigh loadout constructed adjacent to the existing sidetrack to the east of the silo. The transfer conveyor includes partial covers for dust control, walkways, and emergency stop controls for inspection and maintenance in compliance with applicable MSHA safety regulations. Batch-Weigh Loadout and Sampling System -The new batch-weigh loadout, constructed in conjunction with the 1997-1998 coal handling facilities expansion, consists of a surge bin, batch weigh bin, traversing telescoping loading chute, and ass«iated control and ancillary equipment, all of which are contained in apre-engineered steel building. The loadout system is designed to load a unit train at a rate of approximately 6,000 tons per hour, allowing a full train to be loaded in less than two hours. A two-stage coal sampling system is installed on the transfer conveyor from the silo. The system includes a ptimarysweep sampler, dtscharge chute, coal crusher, and secondarysarnpler. The primary sampler periodically sweeps a sample of coal off of the transfer conveyor. The sample falls into a chute that delivers the coal to a small crusher and a secondary sampler. The reject coal is conveyed back to the transfer conveyor by a screw auger. The entire sampling system a enclosed in a small metal building. Coal Refuse and Non-Coal Processing Waste General and detailed plans for coal refuse piles are described and referenced in the following sections in full compliance with applicable provisions of Rules 4.10 and 4.11. These plans have been prepazed by or under the direction of a qualified Registered Professional Engineer, are illustrated by maps and drawings as referenced in the plan discussions, and include relevant geologic and hydrologic • information, geotechnical evaluations, as applicable; descriptions of operation and trtairttenance requirements for each disposal structtue; and plans for stabilization and reclamation of refuse piles. Refuse piles have been located beyond the subsidence limits for underground nesting areas, potential subsidence effects are not a concern. The pr«essing of raw coal from the Somerset Mtne was limited to picking tables where roof r«k and paring material was manually removed from the run-of-mine coal These materials were placed in the East Yard Area along with development refuse generated by ongoing mine development. The picking tables were removed in 1969, and the only refuse subsequently placed in this area included minor quantities of mine development refuse and material from roof falls. Most of the coal mine refuse previously placed in the East Yard area has been scattered and blended with surface materials over the years, with the result that no distinctive refuse pile remains in this area. Since the eazly 1980's, no coal pr«essing has «ctrrred and the only refuse materials produced by ongoing mining and coal handling operations have been minor quantities of underground development refuse, coal refuse from roof falls, and coal refuse separated from the coal by the grizzly in the dump station. These materials have been disposed of in the East Yard pile neaz the sealed G Seam mine portak as shown on Map CS-1195A. During the six-yeaz period From 1991 through 1997, the total quantities of coal mine refuse generated by ongoing mining operations were approximately 5,000 cubic yards annually. At this rate, the East Yatd pile was projected to reach capacity at same point doting 1997 or early 1998. Given this time schedule, OMI pr«eeded with identification, evaluation, design, and development of a new coal rnirte refuse disposal area. In conjunction with expansion of the Elk Creek coal st«kpile, additional fill material was required to bring the st«]tpile pad up to the design grade. With the nrgged terrain on the area, potential fill • borrow sources are limited and the material in the East Yana pile was identified as potentially suitable fill material for this application. Subsequently, approximately 25,000 cubic yards of material from the refuse pile were placed in the st«kpile pad, opening up approximately five years of available disposal capacity in the East Yard area at current disposal rates. PR04 2.05-44 Revised August 2000