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• The ore and waste rock will be mucked out using small diesel loaders. Ore will be hauled to the <br />surface using low-profile, diesel-powered haul trucks (commonly called buggies). Some of the waste <br />produced during later development and production may be disposed of underground. <br />Back support will consist of installing five-foot to eight-foot-long mechanical split-set roof bolts. <br />Bolting will be performed as necessary with the spacing varying according to back conditions and the <br />size of the opening. Mine openings will be twelve feet wide in the drifts but may be wider in the <br />stopes. Metal mats and mine-grade wire will be installed in the back and diagonally on the ribs when <br />additional ground support is required. <br />Material storage areas and stationary equipment will also be located underground. Roof bolts, mats, <br />vent tubing, hoses, lubricants, and the smaller and more commonly used equipment parts will be stored <br />underground near the working faces. These locations will change as the mine workings are advanced. <br />Stationary underground equipment will include air compressors, transformers, and ventilation fans. <br />• 3. Surface Facilities <br />The proposed surface facilities are shown on Maps C-2 and C-3 for the main Whirlwind Mine area and <br />Maps C-4 and C-5 for the Packrat Mine area. Minor changes may be made to the proposed layouts <br />during construction; however, construction activities will be confined to the permit area and outside of <br />surface drainages. The majority of the ore and waste rock (i.e., over 90 percent) will be brought to the <br />surface from the Whirlwind portal. Any ore or waste brought through the Packrat portal will be <br />transferred to bins where the material can be loaded into highway haul trucks for transfer to the <br />Whirlwind or, in the case of ore, hauled directly to the mill. <br />A surface equipment list is presented in the lower portion of Section 4 of this exhibit. There will be no <br />processing activities on site as all the ore will be transported to the White Mesa Mill or another <br />existing uranium mill in the region. Should a new mill be built by Energy Fuels, the ore would be <br />transported to that process facility. <br />• <br />Whirlwind Mine 07 (rev. April 08) D-6 <br />