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Exhibit D Mining Plan (cont) <br /> Technical Revision to increase the amount of area will be submit- <br /> ted. <br /> The maps and the Mining Timetable list show a series of 7 <br /> mining areas that are used to designate where mining will be <br /> done . Their sequencing does not denote the direction of mining <br /> and there are 2 small Areas labeled E1 & E2 that may also be <br /> mined in the future if they contain clay reserves. At this time <br /> mining is taking place in Area A. The Mining Plan Map shows that <br /> mining has ended in Areas A, B, & C and continuing in Area D. <br /> This was done to show that reclamation is running concurrent with <br /> mining, and not to indicate that mining will move in that direc- <br /> tion. As mining approaches the end in a given Area the Division <br /> will be notified in the Annual Report as to where mining will be <br /> done next . <br /> This amendment changes the final sloping design for the mined <br /> area. Since vertical faces of the solid sandstone are stable, it <br /> makes little economic sense to reclaim by building slopes to <br /> cover the solid rock face. The stability of the sandstone is <br /> proven by the numerous stable natural vertical rock faces of the <br /> same sandstone throughout the permit area and surrounding areas . <br /> Any unconsolidated materials on the top of the sandstone and <br /> any exposed clay bed below the solid sandstone will be reclaimed <br /> to 3h to lv slopes . The Typical Cross Section shown on the <br /> Reclamation Plan Map depicts the final surface configuration. <br /> For the most part, the topsoil and overburden above the solid <br /> sandstone consists of unconsolidated material ranging in thick- <br /> ness from a few inches to several feet . This unconsolidated <br /> material is a combination of topsoil/growth medium (0 to 6 <br /> inches) , and rocky dirt (overburden) (up to 8 feet thick) . The <br /> topsoil/growth medium will be stripped off the overburden and <br /> stockpiled on the perimeter of the mined area or placed on areas <br /> where mining has ended. The overburden found under the topsoil <br /> will be used to backfill previously mined areas or saved for use <br /> as root zone . The waste from the clay bed and unusable crusher <br /> fines left from sandstone processing, will be used for backfill <br /> or to build the 3h to lv slopes . <br /> The Area labeling in the revised Mining and Reclamation <br /> Timetables are there to label the mining areas within the mine <br /> and not necessarily to show the direction or timing of mining. <br /> In general, we propose that mining will continue in Area A and <br /> once that is done will move onto the northern end of Area S or <br /> the east side of Area B. <br /> As the topsoil is removed on a Area it will be placed in <br /> stockpiles along the edges of the mining area or on the floor of <br /> the previous Area being reclaimed. The stockpiles will be <br /> located in areas where disturbances by ongoing mining operations <br /> will be at a minimum, i .e. , along setbacks on the pit perimeter. <br /> The topsoil will be handled as little as possible until it is <br /> replaced onto disturbed areas . If the topsoil/growth medium piles <br /> remain undisturbed for more than 180 days, 2 . 0 #PLS of Crested <br /> Wheatgrass, per 100 sq-ft will be planted on the piles or other <br /> means will be employed to preserve the piles from wind and water <br /> erosion. This will keep it free of contaminants so that it <br /> 5 (revised 11/13/17) <br />