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r1 <br />U <br />3.6.1.1 8lsctricsl Distribution system <br />Power for the Edna Mine is supplied from two separate powerlines. <br />one line serves the hilltop area, including the mining areas, and the other <br />serves the office and loadout area (Exhibit 3.6-2). <br />The hilltop powerline enters the eastern edge of the property <br />approximately 3/4 of a mile north of the shop area. This point is <br />designated as the metering station. From here, a powerline runs south down <br />the ridge to the bucket house. This line supplies power to the bucket <br />house and associated electrical equipment in this area. A new line has <br />been installed along an approved corridor which runs north along the ridge <br />from the metering station to provide power to mining equipment on Moffat. <br />This line has been constructed in accordance with standards for the <br />protection of eagles and other large raptors. <br />The power for the office area comes north from the Keystone <br />Substation to a distribution point due west of the bath house. This <br />• distribution point divides power into three powerlines. One serves the <br />pre-existing loadout system, one serves the office and new rapid load <br />system, and the remaining line parallels up the beltline serving the <br />beltline and shop area at the hilltop. <br />in addition to these powerlines, some privately owned powerlines <br />cross through the Edna Mine permit area. These lines include the Iocal REA <br />distribution lines as well as major transmission lines. <br />3.6.1 ROADS AND 98DINSNTATION PONDS <br />3.6.1.1 Roads <br />There are four different access roads at Edna Mine (Exhibit 3.5-1). <br />The southernmost access road, Skyline Drive, constructed prior to 1977 was <br />improved in 1976 by widening the road, improving the gradient (Exhibit <br />3.5-19), constructing ditches and replacing or adding culverts. The West <br />Ridge Road, built partially during the early 1970s as a haulroad to Center <br />Ridge, extended in 1979 to West Ridge as a haulroad and further extended to <br />• the south (during the 1980s) as an access road to form an intersection with <br />Mid-term '94 3.6-2 September 15, 1994 <br />