2011-02-28_PERMIT FILE - C1991078A (3)

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Doc Date:12/11/2001 III IIIIIIIIIIIIIIII 2.05.4 RECLAMATION PLAN] • (1) Reclamation will commence with the clearing and the initial salvage of topsoil material from mine facility areas and will conclude with the revegetation of the final reclaimed dis- turbance areas. (2)(a) A detailed time schedule of amount of acreage to be reclaimed in one year increments is presented in Section 2.05.3(2). This schedule is based on a production rate of 350,000 tons per year. The schedule will obviously change if the production rate varies significantly. (b) The amount of performance bond is developed assuming that the bond would be forfeited at the time reclamation liabilities are highest within the five-year permit term. This worst case condition would occur at the stage in the mining sequence when and if Mining Area No. 1 and Mining Area No. 2 were being mined concurrently. The worst case would occur when there is the maximum amount of material in two spoil stockpiles and in the three topsoil stockpiles. The worst case is assumed to occur when there is the maximum amount of excess spoil in each mining area. According to the spoil balance tables presented in Exhibit 12, the point when there is the maximum amount of excess spoil occurs when mining is commencing in Pit 26 and Pit 30 in mining Area 1 and Area 2 respectively. • In Area 1 the worst case occurs after pit 26 is excavated. At this point the pit void is 113,500 CY and the excess spoil volume in the spoil ridges is 55,657 CY. Pit 26 is 2100 feet long and 90 feet wide. The 55,857 CY spoil ridge and the 81,000 CY stockpile provide an excess spoil quantity of 23,357 CY which will be spread around the area to help blend the pit into the undisturbed area. No highwall reduction would be required. In Area 2 the worst case occurs after pit 30 is excavated. At this point the pit void is 166,250 CY and the excess spoil in the spoil ridges is 57,830 CY. Pit 30 is 1800 feet long and 90 feet wide. After the 57,830 CY spoil ridge and the 19,608 CY stockpile is graded into pit 30, there is still a shortfall of 88,812. This material would be generated from pit highwall reduction. The work required at this worst case point in both pits is to regrade the spoil ridges and backfill the open pits with the excess spoil. The spoil pile from each area would also be hauled to the open pit in each respective area. Then in order to meet approximate original contour the area surrounding the open pit would have to be graded to the pit. The material balance for this operation is as follows: u 2.05-17 May 1992