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West Elk Mine <br />Auxiliary Fan <br />Provide Face Ventilation <br />Water Truck/Wagon <br />Dust Suppression-Roadvvays <br />Rock Duster -Mobile <br />Section & Outby Dusting <br />Trickle Duster <br />Return EntryBeltline Dusting <br />Bulk Dust System <br />Mine -wide Rock -dusting &Transport <br />Mine Monitoring System <br />Equipment Control, Monitoring & Safety <br />ScoopILHD <br />Clean -Up/ Equipment Moves <br />Maintenance Tender <br />Mining Equipment Maintenance <br />Boom Truck <br />Utility-Supply/Maintenance <br />Mantrip <br />Personnel Transport <br />Grader <br />I Roadway Maintenance <br />Fork Truck/Hydraulic Trailer <br />Supply Transport <br />Utility/Maintenance Vehicles <br />Su 249/ ans 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 Searn, and further F Seam. The A Seam is typically less <br />than five feet in thickness and occurs too close below the B Scam to be economically <br />recoverable. Likewise, the C Seam is typically thin, split with rock partings or absent in the <br />West Elk Mine coal lease area. The C Seam also lies sufficiently close to the overlying B Seam <br />to allow recovery of both seams using longwall mining methods. Likewise, the D Seam occurs <br />as a thin coal bed in the West Elk Mine coal lease area and occurs too close below the E Seam to <br />be 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 />e <br />Use <br />Double Ended Ranging Shearer <br />Cuts Coal From Longwall Face <br />2 Leg Hydraulic Sbields <br />Roof Support <br />Pan Line With Chain Conveyor <br />Transports Coal To Stage Loader <br />Hydraulic Pump Station <br />Powers Sbields & Panline Advance <br />Power Distribution Ccnter <br />Provide> l italic I'ov`cr shearer <br />Conveyor and Other Equipment <br />Longwall Support Equipment <br />Move Equipment 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 />Operation Description <br />The primary mine facilities and portals were developed in Section 16, TUS, R90W in 1981 and <br />1982 to support continuous miner room and pillar mining in the F Seam. West Elk Mine was <br />developed using continuous miners in a series of main entries, submain entries, and gate entry <br />development. In 1990, slopes were driven from the existing F Seam main entries in Section 21, <br />TUS, R90W to the underlying B Seam. A similar system of main entries, submain entries, and <br />gate entry development was continued in the northern B Seam reserves. Development of main <br />2,05-6 Rev. 11/04 - PRI 1; 03/06- PRIG; 07/15- MR413 <br />