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E <br />• <br />• <br />12. Mine Access and Traffic <br />The access to the site is from an unpaved public frontage road from the Mamm Creek exit of <br />Interstate 70. The western end of the frontage road is the Scott Pit property. The total length of <br />frontage road that will be used by United to access the pit is 2.2 miles. CDOT Permit #305272 <br />covers the use of this access for the Scott Pit site. The access is limited to 335 daily trips as defined <br />by CDOT. As a condition of this permit, the access road will be paved Erom the mine entrance to <br />the edge of the current pavement. This will benefit the operation and surrounding owners in two <br />ways: 1) Road maintenance will be greatly reduced and 2) dust generation from truck traffic will <br />be removed. While the permit will allow up to 335 daily trips, it is anticipated that considerably <br />less trips will be taken on average. The anticipated annual average is likely to be closer to 150 <br />daily trips. <br />The site has a barbed wire fence along the east, south and west boundaries. A gate is located at the <br />point that the access road enters the Scott property. This gate will be improved as part of the mine <br />operation. The gate will be locked during off hours. <br />13. Mine Life <br />The expected mine life can be seen below. It is based on the anticipated average production of <br />200,000 tons per year. If actual production exceeds the average, the total mine life will be reduced. <br />If actual production is less than the average, mine life will be extended. <br />Mine Life <br />Task Description <br />Pre-mining preparations (Ditches, Berms, Stripping, <br />etc.) for expansion area. <br />Mine Area 1 Phase 1. <br />Mine Area 1 Phase 2 reclaim previous Phase. <br />Mine Area 2 Phase 1 reclaim previous Phase. <br />Mine Area 2 Phase 2 reclaim previous Phase. <br />Mine Area 2 Phase 3 reclaim previous Phase. <br />Mine Area 2 Phase 4 reclaim previous Phase. <br />Reclaim final mining Phase. <br />Total <br />Scott Pit March 10 <br />D-12 <br />Expected Duration (yr) <br />0.10 <br />0.5 <br />1.0 <br />1.0 <br />1.30 <br />0.66 <br />1.2 <br />0.20 <br />5.96