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2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING ACTIVITIES - MINIMUM <br />REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. <br />Throughout the life of the mine, several methods of haulage from the continuous miner <br />to the mine conveyor belt system were used. The predominant method was by diesel <br />powered coal haulers called "Teletrams ". These large diesel haulers accepted coal <br />from the continuous miner and then transported the coal up to 1500 feet to the mine <br />conveyor system where it was discharged from the bed of the <br />hauler by a large push plate. Other systems included electric shuttle cars which use a <br />wide conveyor chain to discharge coal and flighted continuous haulage systems, which <br />connect the continuous miner directly to the mine conveyor system. <br />The mine conveyor system consisted of up to 13 approximately 3000 foot long flights of <br />48" wide conveyor belts. These flights were powered by double drum 400 hp drive <br />units with hydraulic belt takeups. The conveyor system transported the extracted coal <br />to the surface at the East Mine Portal <br />Support equipment for the underground operation included the use of modified diesel <br />pickup trucks, diesel powered end - loaders and custom built service units for belt repair, <br />machinery servicing and timbering duties. <br />The mine was powered through the east portals with 7200 volt power through 350 <br />MCM cables. This power was switched and converted to 440 volts at varies <br />intersections in the mine and at section transformers in the working sections. <br />Travel throughout the mine was accomplished via diesel pickup truck along graded and <br />drained roadways. <br />Airflow throughout the mine was directed by galvanized steel stoppings, overcasts and <br />check curtains. Face ventilation was by 36 inch fiberglass tubing and large mobile face <br />fans. The mine used a fishtail ventilation system on the production unit, where fresh air <br />is drawn in on the unit through the travelways and then directed back down both sides <br />of the production unit in separate return entries. The mine had a variance from the <br />Federal ventilation standards that allowed it to use belt conveyor entries as additional <br />intake entries. <br />(2) Operation Description <br />Mining ceased at the Bowie No. 1 Mine on December 4, 1997. The area which has <br />been mined and the sequence of the mining is shown on Map 2 -5. There are no plans <br />to reinitiate coal production at the Bowie No. 1 Mine since the east and west mines <br />have been reclaimed. <br />PR -4 -4- 06/10 <br />11(3111 <br />