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Stoker Truck Self-Loading System . TCC installed aself-loading system for the stoker trucks that were previously loaded using afront-end loader on the west side of the Preparation Plant. This system required installation of a multi-plate tunnel with two feeders, an escape tube, conveyor structure, MCC building, retaining wall, and widening of Haulroad B-2. A 12-foot diameter, 10-gauge multi-plate tunnel was buried below the existing stoker pile. This tunnel is approximately 100 feet long and buried to a depth of 14 to 15 feet below grade. A total of 100 cubic yards of concrete was required to install the tunnel. Two FCM Vibratory Syntron Feeders were placed in the tunnel to reclaim the stoker coal. It is estimated that 20 cubic yards of concrete were required for the feeder foundations. The tunnel also includes a 36-inch buried corrugated steel pipe escape tube extending from the tunnel approximately 50 feet to the south. One cubic yard of concrete was required at the point where the escape tube daylights. A 150-foot long 36-inch conveyor extends from within the tunnel to discharge directly into the stoker trucks. Two cubic yards of concrete were required for a pad to support the conveyor structure. An MCC building was constructed near the escape tube exit. Dimensions of this building are approximately 15 x 15 feet, with a concrete floor requiring approximately 2 cubic yards of concrete. A retaining wall was constructed on the north side of the existing pile. The wall required 6 steel piles driven to a depth of 25 feet, with treated wood cribs placed between the piles to form the wall. On completion, this wall was approximately 50 feet long and up to 12 feet in height. Haulroad B-2 was widened by approximately 20 feet to allow for a loading area with room for traffic to pass trucks that are loading. The emergency spillway elevation of Pond E was staked and the toe of the fill does not extend past this line, to assure that no storage capacity is lost. Topsoil was stripped, salvaged, and stockpiled on the topsoil stockpile east of Pond E where the haulroad widening extended below the west of the pond embanlanent. No construction occured within a buffer zone of 100 feet from Foidel Creek. Silt fences, hay bales, rock filters, or a combination of these control measures were used, as required, to prevent sediment from washing into Foidel Creek • from [he new fill material or road section. Reclamation associated with these additions will occur when the Preparation Plant facility is dismantled. The concrete will be broken up and disposed of on-site. The steel associated with these additions will be either salvaged or disposed of on-site. Crushing and Sampling Facilities As previously described, the 72-inch overland conveyor transfers coal from both the ROM Coal Stockpile and the Coal Preparation Plant to the Primary Crusher Building. The coal passes through the primary crushers, and is reduced to an 8 x 0 inch size (Note: Coal from the longwall typically meets this size consist, and does not require primary crushing). Following primary crushing, the coal is discharged to a 60-inch conveyor belt. This belt feeds the coal from the Primary Crusher Building to the Secondary Crusher Building. Feed to the secondary crusher passes over vibratory screens; coal that is less than 2 x 0 inches bypasses secondary crushing and transfers to the belt to the Sampler Building, coal larger than 2 x 0 inches passes through the secondary crusher, is crushed to -2- inch and dischazges to the Sampler Building belt. A 2,000 gallon diesel fuel tank and containment is located on the northeast corner of the primary crusher building to allow equipment refueling. In the Secondary Crushing Building another screening process was added for producing stoker coal ('/< to l `/z inch product). The stoker coal is passes through the stoker screen to the stoker belt, which exits the building and dumps the stoker coal into either a small stockpile or directly into a haul truck. Dust from all of the belt transfer points located inside of the building is controlled enclosures manifolded to the existing baghouse. A stoker oil tank is located next to the buildings and the oil is sprayed onto the stoker coal before it is stockpiled. The locations of the stockpile/truck loading areas and the oil tank are shown on Map 24. The stoker oil is piped along the product belt • structure and applied to the stoker coal as the coal leaves the belt. The sale of stoker coal is facilitated by a TR06-53 2.05-32 06/20/06