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' Battle Mountain Reaourca, Inc. 1 1 112 Permit Modification As outlined in the approved permit, development of the Kfest Pit has resulted in an irregular pit configuration with a series of regular benches and highwalls mixed with azeas of relatively Flat, wide benches. In most cases, the bench/highwall configuration has a maximum height gain of 45 ft between the wid nches. The mined-out pit configuration for the West Pit is shown on Figure C-4 ' the approved permit document. '~u~~~, , ~( ~}<.-~It~ w~axrmv.. Waste rock from the West Pit is composed of gravels an bbles from the zle~~1,,,,,,s Santa Fe Conglomerate, pink gneiss, and biodte or biotite-amphipole gneiss. Waste rock is presently hauled from the pit to the waste rock disposal A portion of the waste rock from the Deep West Pit azea will be hauled to to Rock Disposal Area B for temporary storage. When mining is completed in the beep West Pit azea, mining will progress through the western portion of the pit and i~lto the Pink Gneiss area. Waste rock from the west end of the pit and from the Pink GGneiss azea will be hauled to the Deep West Pit azea for disposal. Following the a m e Ptn Gnetss area, the waste rock temporarily stored on ~ Area B will be placed u backfill into the Pink Gneiss area. discussed in more detail i ection D.3.4.2. of the ore zone aquifer is occurring as ems: Dewatenng has only been necessary m the wells have been installed m the West Pit, however pletion of mining ate Rock Disposal Pit backfilling is in the approved t Ptt eaazt Ptt ]v one of these wells has~een used for dewatering purposes. Water pum~ from this well ' maintains the water level in the ore zone aquifer below the lev 1 of active mining operations. The county road has been relocated as described in the approved permit to allow mining in the West Pit area. ' D.2.5 Pit Wall Stability ' The pit wall stability study described in the approvkd permit remains unchanged. 1 ' ay D-2 lcet o.