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Section - 2.05.3 <br />B Seam Portal - The B Seam portal was the main portal access for men, materials, supplies <br />and coal transportation out of the mine. The portal was sealed in 1986 after equipment <br />was removed from the mine and the portal area was backfilled. <br />B-Seam Mine Ventilating Fan Station -This fan station was demolished in 1986. <br />C-Seam Mine Main Portals -The main portals were the primary access to the C-Seam Mine. <br />These portals have been backfilled and the associated highwall and bench areas have <br />been partially backfilled with mine development waste. <br />C-Seam Mine Ventilating Fan Station -This fan station was demolished in 1986. <br />C-Seam Mine Intake Portals -Two portals into the C-Seam, in addition to the main portals, <br />were used as fresh air intakes for mine ventilation. Both of these portals have been <br />reclaimed. <br />B- and C-Seam Mine Track -The track to the C-Seam Mine branched from the B-Seam track <br />and was part of the track system fox transportation of men, supplies and coal. <br />Approximately 450 feet of track was removed during construction of the East Yard <br />refuse pile and associated topsoil stockpile. The remaining track was removed during <br />construction of the East Yard coal stockpile. <br />Bear Creek Area (Somerset Mine) -See the General Facilities Map, (Map 2.05-M1), and the <br />Facilities Detail Maps, (Map series 2.05-M3s). All mine-related facilities in the Sear Creek area have <br />been removed and the associated disturbance areas reclaimed. <br />Lower Hubbard Creek Area (Somerset Mine) -See the Mine Axea Geology Map, (Map 2.04-M3), <br />General Facilities Map, (Map 2.05-M1), and the Facilities Detail Maps, (Map series 2.05-M3x). All <br />mine-related facilities in the Lower Hubbard Creek area have been removed and the associated <br />disturbance areas reclaimed. Degasification boxeholes B-4, 5, 6, 7 and 8 were drilled into the <br />Somerset Mine workings and have now been abandoned. <br />Upper Hubbard Creek Facilities (Somerset Mine with potential future application for Elk <br />Creek Mine) -See the General Facilities Map, (Map 2.05-M1) and the Facilities Detail Maps (Map <br />series 2.05-M3x). <br />A. Ventilation Shafts -Designed as two vertical ox inclined shafts with a grouted steel- <br />plate collar extending from the surface to the point a[ which competent rock is <br />encountered. Below this point, the shaft opening would be supported by wire mesh <br />and resin bolts with a 3-inch layer of shotaete to provide a smooth shaft lining. <br />Nominal inside finished shaft diameter will be 16 feet. The surface collar will be <br />concrete. These shafts have not been constructed, but could be required in <br />conjunction with future mining in the D Coal Seam. <br />B. Escape Hoist -The planned escape hoist in one of the ventilation shafts has not <br />been constructed. <br />C. Fan Installations -Designed fan installations would consist of ventilation fans, steel <br />Ean housings and ductwork, drive motors, and associated fan controls mounted on <br />concrete slab foundations. These facilities have not been constructed or installed. <br />D. Electrical Substation and Powerline - An electrical substation was installed on a <br />concrete pad. This substation has been dismantled and removed except for the <br />concrete pad. It may be replaced in the future if the fan site is developed. A power <br />distribution line runcung from the Elk Creek facilities area was installed to provide <br />power to the Upper Hubbard Creek site. Powerline design included suitable raptor <br />MR-78 2.05-12a Revised May 2006 <br />