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<br />WHITE BANKS MINE <br />EXHIBIT C <br />Crushed alabaster, which forms an excellent dust-free road surface, will be used as <br />gravel. The remaining area will be used for the storage ofnon-weather-sensitive mine <br />supplies such as mine timbers, roofbolts, pipe, and cable. No hazardous materials or <br />fluids will be stored in this azea. Avalanche Creek Marble & Alabaster intends to drill <br />a well in this area at some time in the future, at a location yet to be determined <br />(location shown on Exhibit E is for information only). A grove of Douglas fir and <br />Ponderosa pine trees makes up the northeast comer of the main yazd. With the <br />exception of trimming some branches trees in this grove will not be disturbed; <br />however, in order to maximize use of the rest of the main yard area, parking will be <br />permitted in the grove. See Exhibit E. <br />White Banks Adit: The White Banks Mine is opened by a single adit from the <br />existing mine bench. Because of broken and loose rock encountered in the first ten <br />ft ofthe adit, ACMA intends to cut the portal face back an additional 10 ft along the <br />length of the portal bench, as has been discussed in section 6.3.3(])(c) above. The <br />adit will be extended straight into the hillside for approximately 400 ft, the horizontal <br />thickness of the alabaster bed and the overlying quartzite and mazble beds. Galleries <br />will then be opened off the main entry. Additional rooms will be excavated off the <br />main adit for equipment storage and maintenance, and for other purposes as necessary <br />to minimize surface facilities requirements, surface disturbance, and visual and noise <br />impacts. At some point a small second opening will be required for ventilation and <br />escapeway purposes. The location of that opening has not been determined. A small <br />water tank is currently mounted over the mine portal. Larger water storage facilities <br />will be installed underground as soon as an appropriate location is available. <br />In order to provide power for the equipment necessary to operate the mine until <br />commercial power is installed (in progress), Avalanche Creek Mazble & Alabaster <br />has installed a 150Kw diesel generator set. The generator which isskid-mounted and <br />does not require a concrete floor, is temporarily located next to the cabin below the <br />mine bench northeast of FDR 310. The generator has been muffled to the extent <br />necessary to comply with Pitkin County noise abatement ordinance Title VIII, Section <br />4. When commercial power is placed in service the generator will be moved to the <br />main yard storage azea and used for emergency purposes only. Commercial power <br />will be distributed underground from pole-mounted transformers north of FDR 310 <br />at the southwest comer of the mine yard. <br />Page 3 <br />w F~u,9. 1999 t1.MPH~ <br />