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e) Major components of mining operation; <br />a. Roads/access routes = Not Applicable. There are no new roads or access routes as part <br />of this amendment. <br />b. Office/shop/maintenance buildings = Not Applicable. There are no new buildings to be <br />constructed as part of this amendment. A'snow-shed' (comprised of supports and <br />roofing only) will encapsulate the surface portion of the proposed milling operation <br />(dimensions of 60 ft long by 20' wide, and 15' tall), but was considered part of the <br />'processing facilities' described in item c below. <br />c. Processing facilities = the proposed milling facilities summarized in Figure C.I. As shown <br />within this Figure, several of the mill components will be outside on the surface, while <br />the majority will be housed underground. The two areas will be connected with use of <br />conveyor systems. The proposed outside components will occupy an area (shown on <br />Map A, EXHIBIT E) with the dimensions of 60 ft long by 20' wide, and 15' tall (18,000 <br />cubic feet). These outside components will be located immediately adiacent to the <br />highwall adjacent to the upper portal. This location will afford these outside <br />components 'some' protection from snow slides, however in order to control any slides, <br />a snow-shed-roof will be built around the surface-mill components for protection. <br />d. Underground openings (adits, ventilation, secondary escape) = Not Applicable. There <br />are no new underground openings as a part of this amendment. Existing features <br />already permitted are shown within Exhibit E, Map E.1. <br />f) Dimensions of significant disturbances (mine benches, stockpiles, buildings) = The approximate <br />dimensions of the proposed mill components addressed within this amendment - on the surface <br />would be 60 feet long by 20 feet wide. The remaining significant surface disturbances <br />associated with the mine site have been previously documented within the existing permit. <br />g) Dimensions of existing or proposed roads = Nothing new is proposed as part of this amendment. <br />Existing roads have already been provided within the Technical Revision No. 1 documentation <br />(Castle, H., 1999) and approved by DRMS (DMG, 1999. <br />h) Amount of Water Use associated with the operation, and its source = Approximately 5 to 7 <br />gallons per minute, supplied by water from the mine will be used by the mill features described <br />within this amendment (that is re-circulated back into the system). Water will be pumped up <br />from the lower underground workings when needed for the sluice box portion of the mill circuit. <br />Subgrade ore from the milling process will be stored in underground workings immediately <br />adjacent to the underground mill. Water decanted from the proposed subgrade repository will <br />be routed back into the ball mill.