2021-03-18_PERMIT FILE - M2021014 (3)

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EXHIBIT C MINING PLAN COUNTY: Cheyenne OPERATOR: Castle Rock Construction Company of Colorado, LLC 1. Mining will commence in April 2021 or as soon thereafter as this permit is approved and will continue until the completion of Region 4 Passing Lanes, CMGC project from Hugo to South of Kit Carson. The completion of this project will be in the fall of 2021. Reclamation will be complete just after the project is finished. 2. All of the topsoil along with the grass root zone on the existing rangeland will be salvaged for use in the reclamation process. Topsoil on the disturbed portions of the pit will be striped to a depth of 6-10 inches and stockpiled as shown on Exhibit E - Mining Plan Map, East of the affected area. The topsoil will be placed back on the reclaimed area to the same 6-10 inches. 3. While in the process of mining we will be making a vertical cut of 4' with an excavator across the pit and doing that again working our way down to the 8' maximum depth. Once we reach the limits of the pit, we will roughly shape them at a 4:1 slope until we are complete with the borrow activity and we will reclaim the whole pit not exceeding a 4:1 slope. 4. All haul roads, storage areas, facilities, equipment, machines, tools or other materials or property will remain within the boundaries of the pit. 5. Overburden is not anticipated in this mining operation. 6. If stock piles are left for extended time over 180 days it will temp seeded. Temporary seeding will utilize the seed mix stated in the reclamation plan. Any runoff from the stockpile will be channeled toward the excavation area. No drainage ways will be blocked by or contact the stockpile of topsoil. Topsoil placement will be complete by the late fall of 2021. 7. Thickness of borrow material will be a maximum of 8 feet. 8. Borrow material will be excavated within the pit limits and hauled directly to the project site off of the property.No processing of the material will occur on the site. 9. The pit is an existing fairly flat rangeland. A maximum of 8 feet depth will be mined by beginning at the southwest edge of the pit limits and excavating North. The pit floor will be graded to a relatively level elevation for approximately 200 feet and then a max 4:1 slope will be built on the Westerly side of the pit.