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West Elk Mine <br /> <br />Table 30 <br />T ical E ui ment Used for Lon all Develo ment Minin at West Elk Mine <br />E ui ment Princi al Use <br />Continuous Miner Curtin Coal <br />Diesel Shuttle Car Trans ort Coal To Feeder <br />Feeder Breaker Break Coal/Meter Flow To Belt <br />Section Conve or Belt Trans ort Coal To Main Belt <br />Main Conve or Belt Trans ort Coal To Surface <br />Roof Bolter Prima /Seconds Roof Su rt <br />Power Center Provide Electrical Power <br />Auxilia Fan Provide Face Ventilation <br />WaterTruck/Wa on Dust Su ression-Roadwa s <br />Rock Duster-Mobile Section 8 Outb Dustin <br />Trickle Duster Return Ent /Beltline Dustin <br />Bulk Dust S stem Minewide Rockdustin 8 Trans ort <br />Mine Monitorin S stem E ui .Control Monitorin & Safet <br />Scoo /LHD Clean U / E ui ment Moves <br />Maintenance Tender Minin E ui ment Maintenance <br />Boom Truck Utili -Su I /Maintenance <br />Mantri Personnel Trans ort <br />Grader Roadwa Maintenance <br />Fork Truck/H draulic Trailer Su I Trans ort <br />Unlit /Maintenance Vehicles Su ort/1-rans ortation <br />Other coal beds occur in the West Elk Mine area that are generally thin, discontinuous, and of <br />poor coal quality. The mining of these seams is not planned. These seams are, in ascending <br />• order, the A Seam, the C Seam, the D Seam, and the F Seam. The A Seam is typically less than <br />five feet in thickness and occurs too close below the B Seam to be economically recoverable. <br />Likewise, the C Seam is typically thin, split with rock partings or absent in the West Elk Mine <br />coal lease area. The C Seam also lies sufficiently close to the overlying B Seam to allow <br />recovery of both seams using longwall mining methods. Likewise, the D Seam occurs as a thin <br />coal bed in the West Elk Mine coal lease azea and occurs too close below the E Seam to be <br />economically recoverable. Where the D Seam merges with the overlying E Seam, the upper <br />portion of the D Seam may be mined locally, with the E Seam. Previous mining operations in <br />the F Seam have been unsuccessful. Because of seam thinning, poor roof conditions and coal <br />quality, attempts to recover the F Seam have historically proven to be uneconomic. <br />Table 31 <br />T ical E ui ment Used in Lon wall Minin at West Elk Mine <br />E ui mentT a Princi al Use <br />Double Ended Ran in Shearer Cuts Coal From Lon II Face <br />2 Le H draulic Shields Roof Su ort <br />Pan Line With Chain Conve or Trans orts Coal To Sta a Loader <br />H draulic Pum Station Powers Shields & Pauline Advance <br />Power Distribution Center rovides Electric Power To Shearer, <br /> Conve or and Other E ui ment <br />Lon wall Su ort E ui ment Move E ui ment From Outside and <br /> Between Panels <br />MCC will take all reasonable actions necessary to minimize waste and damage to the remaining <br />coal resources by appropriate mine design and extraction techniques. <br />• <br />2.05-6 Revised November 2004 PRI G <br />