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• <br />One or more material storage areas will be established on top of the Whirlwind waste rock pad. A <br />small storage area will also be available at the north end of the Packrat waste rock pad next to the <br />maintenance shop. These storage areas will contain supplies used underground such as roof bolts, <br />mats, pipe, power cable, ventilation tubing, hoses, timbers, and parts for large equipment. <br />A 1,000 gallon tank containing a dilute solution of magnesium chloride will be installed on top of the <br />pad near the Whirlwind portal as shown on Map C-2. This tank will be surrounded with a soil berm to <br />contain any releases or spills. The magnesium chloride will be sprayed on the mine haulage roads to <br />create a sealed surface that minimizes the generation of fugitive dust. <br />13. Mine Access Roads and Pads <br />Primary Access Roads <br />• The Whirlwind Mine portal is located in the north central part of the claim block. It is accessed by <br />driving 0.8 mile on Colorado Highway 141 south of the Gateway Post Office to Mesa County Road 4 <br />4/io (a.k.a., John Brown Road); then 7.4 miles southwest to the intersection with Mesa County Road <br />5/io; and, then proceeding west and north on Road 5/io for 3.2 miles to the mine site. Energy Fuels has <br />Surface Alteration Permits with Mesa County that allow the company to assist the County in road <br />maintenance activities. Permitted maintenance activities include snow removal, minor repairs, and <br />application of magnesium chloride on both roads. Installation of culverts and additional road <br />improvements (i.e., construction of ditches, placement of road base, and periodic road grading) are also <br />allowed on 5/10 Road. <br />Maintenance activities on John Brown Road and 5/10 Road are expected to result in year-round access <br />to the mine. However, there will be time periods when the steeper sections of the road are not safe for <br />ore haulage. The Whirlwind Mine Superintendent and the ore haulage contractor will make the <br />decision whether to temporarily suspend ore haulage operations on a case-by-case basis. Normally this <br />would occur after a heavy precipitation event. The County Conditional Use Permit also places <br />• restrictions on the times and days when ore haulage may occur to minimize impacts to other users of <br />Whirlwind Mine 07 (rev. April 08) D-23 <br />