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West Elk Mine <br />Completion of construction and installation of the modulaz units is expected to occur in mid to <br />late May 2005 when the modular units are expected to be delivered. The facilities need to be <br />placed in service no later than the last week of May 2005 to meet VJEM's needs for housing <br />additional construction and development staffing. <br />Electrical Power <br />An overhead i15ICV high voltage transmission line supplies power to the substation located in <br />Sylvester Gulch. This feed line replaces the 46KV high voltage transmission line from <br />Colorado Highway 133 to the substation located in Sylvester Gulch that was established in <br />1997. Distribution power lines connect the substation to the two ventilation shafts, the Sylvester <br />Gulch F Seam fan, the electric borehole, mine dewatering pump station and the existing main mine <br />facilities. The substation located within the main mine facilities was abandoned in 1998, due to <br />landslide movement, and is discussed in a later section of this permit. <br />This electrical system meets the requirements of the National Electrical Safety Code, the National <br />Electric Code (NEC), the National Fire Code, MSHA, and all applicable State or local codes. <br />Grounding and ground-fault-protection systems have been built into the electrical distribution <br />system according to Federal mine safety regulations, Raptor protection systems have also been built <br />into the electrical distribution system. Circuit breakers, lightning-protectors, and ample switching <br />points with the necessary transformers have been built into each substation. Branch-lines that lead <br />out to various loads are protected with breakers to prevent trip out of the main breaker and <br />shutdown of the entire operation if a fault occurs on a branch line. The protective breakers on the <br />branch lines are coordinated with the exception that the mine fans are to be connected to the main <br />distribution line ahead of other breakers. <br />Communications <br />A pager-type mine telephone system connects all working sections to the mine office. The system <br />uses the same surface corridors as the power distribution system where possible. It also has backup <br />battery powered pagers. Additionally, atwo-way radio system is also used at West Elk Mu-e. <br />This system is used on the surface and underground. <br />Materials Storage Areas <br />Because the mine site is steeply sloped, benches have been or will be constructed and several <br />azeas have been designated for the storage of materials and equipment. An access road loop will <br />be constructed to create an approximately 3 2/3-acre storage bench located east of the office <br />building employee pazking lot. An approximately 1/3-acre bench, referred to as the surface lay- <br />down area, was constructed between sediment pond MB-1 and the fresh water pond. The upper <br />and lower portal benches and the old Bear Mine site are also designated for the storage of <br />materials and equipment, Other areas, including near the wazehouse, maintenance shop, surface <br />shop, materials storage bench building, water treatment plant and along mine site roadways, and <br />the surface of the Lower Refuse Pile may also be utilized as needed for materials and equipment <br />storage, <br />1.05-23 Revised June 2005 PR/0; Rev. January 2006; Rev. March 1006; Rev. Apri12006 PRI o, May 2006 PR/0 <br />