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<br /> <br />2.05.3 Operation Plan - Estimated Area for Life of Operation <br />fl) Production, Methods and Equipment <br />The Somerset Mine ceased production at the end of 1985. <br />The portals to the mine have been sealed and no further mining is <br />expected to take place from the Elk Creek Mine portals. <br />The Somerset Mine surface areas consist of a total of <br />60 acres of affected or disturbed land. The main portal and the <br />major surface support Facilities consist of office buildings, <br />shops, storage yards, etc., are located in Elk Creek on 29 acres <br />of the disturbed areas. Partially dismantled ventilation and <br />electrical substations are located in the Bear and Hubbard Creek <br />areas. <br />Coal from other mines in the area will be hauled to the <br />Elk Creek facilities to be stockpiled and loaded out through the <br />existing coal silo. Coal hauled to the facilities for loadout <br />will be delivered from State Highway 133. Typically, 28 ton <br />capacity, 18 wheel end or belly dumps will deliver up to 120 <br />truck loads per day to the facilities. Smaller 10 wheel end <br />dumps which haul about 10 tons may be used occasionally. Up to <br />350,000 tons per year will be hauled to and loaded out through <br />the Elk Creek facilities in this manner. <br />The Sanborn Creek Mine surface will consist of a total <br />of 4.0 acres of disturbed land. The area included in this total <br />is the area east of Section Q-Q' shown on drawing E-3228R and the <br />area north of the relocated railroad subgrade. <br />Underground mining will be conducted at the Sanborn <br />Creek Mine in the C-Seam and B-Seam by conventional room and <br />pillar techniques using continuous miners and shuttle cars. <br />Newly exposed roof will be supported in accordance with an ap- <br />proved roof support plan which recognizes full roof bolting and <br />additional support materials as required due to local conditions. <br />Development mining will generally be in the upper 8 to 10 feet of <br />the seam. Rooms will be driven on retreat with extraction of <br />room and entry pillars. In the B-Seam 4 to 6 Peet of bottom coal <br />will be mined during the retreat cycle of mining with the objec- <br />tive of extracting the upper 12 to 14 feet of the seam. Retreat <br />mining is conducted to attain the maximum recovery consistent <br />with the safety and protection of mine personnel and to insure <br />caving of the mined areas. <br />Coal will be loaded from the working face by continuous <br />miners into shuttle cars which transport the coal to the conveyor <br />belt loading point. Conveyor belts transport the coal to the <br />surface. <br />2.05 - 2 <br />Rev. 5:8-OS-91 <br />