2017-06-30_REVISION - M1977219 (8)

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Exhibit D MINING PLAN Unless specifically discussed below, the methods described and approved in the existing permit application and amendments to the mining and reclamation plans will remain unchanged. This will stay a dry mining operation of sandstone and clay. Map Exhibit C shows the current permit area and the area being added to the permit . There are no changes to the mining method as approved in the 1977 permit and the 2 amendments that followed the original approval . The primary reason for this amendment is to add approximately 1006 . 5 acres to the permit area that covers the reserves leased or owned by Summit Brick and will extend the life of the mine . The additional area has been owned or leased by various owners for the purpose of mining since the 1950 ' s . At the time of permitting we are not sure of the location of actual reserves in the mining areas so, as the mine develops, we will be investigating each mining Stage and developing specific mining plans for the individual Stages . It is possible that, during exploration activities throughout the property, additional clay and sandstone reserves will be discovered that were not included in the current mining plan. If this occurs a new Stage may be added or an existing stage will be expanded to cover the new area . If at any time it is determined that the disturbed area will exceed the maximum allowed by the bond, a Technical Revision to increase the amount of area will be submitted. The maps and the Mining Timetable list show a series of 7 mining stages that are used to designate where mining will be done . Their sequencing does not denote the direction of mining and there are 2 small Stages labeled El & E2 that may also be mined in the future if they contain clay reserves . At this time mining is taking place in Stage A. The Mining Plan Map shows that mining has ended in Stages A, B, & C and continuing in Stage D. This was done to show that reclamation is running concurrent with mining, and not to indicate that mining will move in that direction. As mining approaches the end in a given Stage the Division will be notified in the Annual Report as to where mining will be done next . This amendment changes the final sloping design for the mined area . Since vertical faces of the solid sandstone are stable, it makes little economic sense to reclaim by building slopes to cover the solid rock face . The stability of the sandstone is proven by the numerous stable natural vertical rock faces of the same sandstone throughout the permit area and surrounding areas . Any unconsolidated materials on the top of the sandstone and any exposed clay bed below the solid sandstone will be reclaimed to 3h to lv slopes . The Typical Cross Section shown on the Reclamation Plan Map depicts the final surface configuration. For the most part, the topsoil and overburden above the solid sandstone consists of unconsolidated material ranging in thick- ness from a few inches to several feet . This unconsolidated material is a combination of topsoil/growth medium (0 to 6 inches) , and rocky dirt (overburden) (up to 8 feet thick) . The topsoil/growth medium will be stripped off the overburden and stockpiled on the perimeter of the mined area or placed on areas 4