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-, 2 . 05 . 4 RECLAMATION PLAN <br /> ( 1 ) Reclamation will commence with the clearing and the <br /> initial salvage of topsoil material from mine facility areas and <br /> will conclude with the revegetation of the final reclaimed dis- <br /> turbance areas . <br /> ( 2 ) (a) A detailed time schedule of amount of acreage to <br /> be reclaimed in six month increments is presented in Section <br /> 2 . 05 . 3 ( 2 ) . This schedule is based on a production rate of <br /> 350 ,000 tons per year. The schedule will obviously change if the <br /> production rate varies significantly. <br /> (b) The amount of performance bond is developed assum- <br /> ing that the bond would be forfeited at the time reclamation <br /> liabilities are highest within the five-,year permit term. This <br /> worst case condition would occur at the stage in the mining <br /> sequence when and if Mining Area No. 1 and Mining Area No. 2 were <br /> being mined concurrently. The worst case would occur when there <br /> is the maximum amount of material in two spoil stockpiles and in <br /> the three topsoil stockpiles . The worst case is assumed to occur <br /> when there is the maximum amount of excess spoil in each mining <br /> area. According to the spoil balance tables presented in Exhibit <br /> 12 , the point when there is the maximum amount of excess spoil <br /> occurs when mining is commencing in Pit 26 and Pit 30 in mining <br /> Area 1 and Area 2 respectively. <br /> In Area 1 the worst case occurs after pit 26 is <br /> excavated. At this point the pit void is 113 , 500 CY and the <br /> excess spoil volume in the spoil ridges is 55 ,857 CY. Pit 26 is <br /> 2100 feet long and 90 feet wide. After the 55 ,857 CY spoil ridge <br /> and the 35 ,533 CY stockpile is graded into pit 26 there is still <br /> a shortfall of 22, 110 CY to fill the pit. This material would be <br /> generated from pit highwall reduction. <br /> In Area 2 the worst case occurs after pit 30 is <br /> excavated. At this point the pit void is 166 , 250 CY and the <br /> excess spoil in the spoil ridges is 57 ,830 CY. Pit 30 is 1800 <br /> feet long and 90 feet wide. After the 57 ,830 CY spoil ridge and <br /> the 19 ,608 CY stockpile is graded into pit 30 , there is still a <br /> shortfall of 88,812 . This material would be generated from pit <br /> highwall reduction. <br /> The work required at this worst case point in both <br /> pits is to regrade the spoil ridges and backfill the open pits <br /> with the excess spoil. The spoil pile from each area would also <br /> be hauled to the open pit in each respective area. Then in order <br /> to meet approximate original contour the area surrounding the <br /> open pit would have to be graded to the pit. The material bal- <br /> ance for this operation is as follows : <br /> 2 .05-17 July 1991 <br />