2019-04-18_PERMIT FILE - M2019015 (3)

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EXHIBIT C MINING PLAN COUNTY: Prowers OPERATOR: Castle Rock Construction Company of Colorado, LLC 1. Mining will commence in mid May 2019 or as soon thereafter as this permit is approved and will continue until the completion of a US 287 Climbing Lanes re- construction project South of Lamar. The completion of this project will be in the fall of 2019. 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 4-6 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 4-6 inches, when possible, during excavation as the remaining aggregate is excavated, thereby minimizing the size of the topsoil stockpile. 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 12' 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. There will be a Concrete Batch Plant site on this same property approximately 1,000 feet away from the borrow pit. This Batch Plant has no ties or affect to the borrow area. The material being mined is not material for the Batch Plant. 6. This Borrow area is adjacent to an area that was mined in the past. The new location is on the Northwest corner of the old pit location and our intent is to mine the Northwest Slope of the old pit and continue it to the Northwest. 7. Overburden is not anticipated in this mining operation. 8. 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 2019. 9. Thickness of borrow material will be a maximum of 12 feet.