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mining activities. The Eagle No. 9 Mine permanently ceased mining activities in 1985. The <br />portal azea of the No. 9 is being used for a coal processing waste pile, as approved in the permit <br />application. <br />Permit Area, D[sturbed Area, and Production Volumes. The permit area covers approximately <br />6,363 acres. The disturbed area totals 427.4 acres. The surface disturbance includes three existing <br />portal areas; the No. 5 Portals, the No. SA Portals, and the No. 9 Portals. Access to the No. 6 <br />Mine is from within the existing areas of the No. 5 Mine. This access is through the SA Portals. <br />No new surface disturbance was caused by driving ramps from the F seam (No. 5 Mine) down to <br />the E seam (No. 6 Mine). When mining resumes, the projected maximum annual tonnage for the <br />Eagle No. 6 Mine is 4.0 million tons <br />Associated Facilities. These include: mine dewatering ponds, sediment control ponds, haul <br />roads, conveyors, breakers, silo, loadout, sampler, scale, and mine buildings. <br />Mining Method. Three of the Eagle Mines are underground mines, while the Williams Fork <br />Strip Pit No. 2 was a surface mine. The No. 5 Mine extracted coal from the F seam, and the No. 6 <br />Mine extracts coal from the E seam. The operator partially extracted coal from the P seam in the <br />No. 9 Mine as approved in a permit revision application (see findings document of Apri19, <br />1984). Room-and-pillar and longwa[I mining methods have been used in the mines to extract the <br />coal resource. In the No.S mine, conventional underground techniques were used for developing <br />mains, submains and longwall panel entries. Room-and-pillar extraction techniques were used <br />initially. More recent mining utilized longwall mining methods. The No. 6 Mine also used <br />conventional mining techniques for development mining and used longwall methods within <br />production panels. <br />The Williams Fork Strip Pit No. 2 was mined and portions or the Williams Fork strip pit area <br />was reclaimed prior to 1978 (Exhibit 28). Portions of the Williams Fork Strip Pit area were <br />redisturbed after 1978 with the intention of constructing additional portals to the No. 9 Mine. <br />Mining ceased in the No. 9 mine in 1985 and no portals were driven from the Williams Fork <br />Strip Pit No. 2 to the No. 9 Mine. The Williams Fork Strip Pit No. 2 highwall was reclaimed <br />after cessation of mining of the No. 9 Mine. The Division continues to hold reclamation bond <br />for those portions of the Williams Fork Strip Pit No. 2 that were redisturbed aRer May 3, 1978. <br />Transportation of Coal and Waste. When the mine was active a conveyor carried coal from the <br />No. 6 Mine to a silo where it was loaded onto a unit train. Waste rock was conveyed from the <br />portal s facilities area and hauled by truck to the coal processing waste pile in the No. 9 Mine <br />portal area. <br />Control of M[ne Water and Surface Runoff. Mine water and surface runoff aze handled in a <br />series of ditches and ponds. Eagle No. 5 Mine water and No. 6 Mine water is collected in a mine <br />sump and pumped to the surface in the 7 North Angle well. From the well, the water passes <br />through atwo-pond system, 9P-2 and 9P-3, and then is dischazged into the Williams Fork River. <br />Disturbed azea drainage is controlled by ponds, except for those aeeas where small azea <br />exemptions have been approved. <br />10 <br />