2009-08-13_PERMIT FILE - C1981019A (4)

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RULE 2 PERMITS All yardage and acreage figures were calculated based upon the assumption that topsoil would be removed in advance of mining activities as shown on Topsoil Handling Map (Map 28B). A buffer zone will be provided between the area disturbed by mining and the area where topsoil has not been removed. Mine development into the South Taylor area will require an initial boxcut, resulting in additional stockpiling of topsoil. The stockpiling of topsoil will continue until all pit development has progressed to its maximum extent. Portions of the permanent waste dumps are scheduled to be constructed to their final grade and be available for final grading, topsoil replacement and revegetation during 2011 -2012 are shown on Map 29A. The areas available for final reclamation prior to mine closure consist primarily of outslope areas. Topsoil to cover these areas will either be direct placed from areas of topsoil removal activities or topsoil will be hauled from the topsoil stockpiles. Direct placement of topsoil will be the preferred method, however, the stockpiled material will be utilized if equipment schedules, weather conditions or other operational factors make direct placement less desirable or less cost effective. After mining and regrading operations have ceased, all stockpiled topsoil will be used to reclaim the pit disturbance. Topsoil will be stored in topsoil stockpiles as shown on Map 28A. Generally, topsoil from areas west of the Section 16 pit will be store in the western stockpile and topsoil from areas east of the Section 16 pit will be stored in the eastern stockpile, however operational considerations may result in periodic variations from this plan. The western pile is anticipated to hold approximately two thirds of the salvaged topsoil and the eastern pile approximately one third. Both stockpiles may be active during the life of the mine. The topsoil generated from development of the new South Taylor Haul Road will be placed into three separate, defined piles along the haul road corridor. Location of these stockpiles will be shown on Maps 28 and 28B. Construction specifications for these stockpiles will follow all prudent regulations within this section (2.05.3(5)) and as follows. Stockpiles will be constructed with outside slopes no steeper than 3h:ly. Stockpiles are specifically located to avoid erosion from wind and water and additional compaction or contamination. As can be determined from the Topsoil Handling Map (Map 28B), all proposed stockpiles are located within stable areas. The piles will be protected from wind erosion by planting a perennial mixture as explained in Section 4.06.3 as soon as conditions allow. Proper seasons of planting will be early spring or late fall. In addition to the planted material, a considerable amount of volunteer growth can be expected to grow on all stockpiled topsoil. External erosion will be controlled through proper location of the stockpiles. No topsoil stockpiles will be placed in a drainage bottom where external erosion might pose a potential threat. Unnecessary compaction will be avoided by keeping all but essential traffic off the stockpiled areas. Topsoil signs will identify topsoil stockpiles. Contamination of the stockpiles will be eliminated by the careful selection of sites that are distant from the areas where actual mining activities are occurring. Drainage ways and areas near spoiling and blasting will be avoided where possible. South Taylor /Lower Wilson — Rule 2, Page 90 Revision Date: 7/27/09 Revision No.: TR -76