2025-02-13_REVISION - M2020007 (6)

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EXHIBIT D MINING PLAN (CONT) areas contain fiber optic lines, telephone lines, gaslines and electric lines as well as HWY 85 and the railroad tracks . The western area lies between the South Platte River and HWY 85 and is currently an active mine . Mining is completed in Phase 1 and has begun in Phase 2 . Phase 3 is currently stripped and used as processing and stockpile areas as approved in the existing plan. There are no county roads or public facilities in this area. The oil and gas facilities on this side have been plugged and abandoned and the associated pipelines and support facilities have been removed. The Platte Valley Canal crosses this area from north to south and will not be disturbed by mining. The eastern area is also used as an active farm with associated support structures similar to the west side. Two Weld County Roads (22 & 22 . 5) are adjacent to the eastern area. The eastern area also has oil and gas facilities, which include four (4) oil/gas wells, three (3) of which are shut in. "Shut in wells" is a well which is capable of producing but is not presently producing. They are usually plugged and abandoned completely by the Oil/gas company at some time in the future. The Platteville Ditch runs through and along the east side of the east parcel . MAP EXHIBIT C CURRENT CONDITIONS MAP, shows the outline of the Affected Lands/permit area, the adjacent landowners within 200 feet of the facility, current topography, hydrologic and surface features of the property. Of particular note, the western permit/affected lands line has been moved to run along the road on top of the berm built by the landowners and/or historical levees built by the US Army Corps of Engineers along the South Platte. Over the years, it appears this bank has been lined with armoring materials along its entire length by multiple landowners . No mining will take place within a minimum of 150 feet from the river bank that exists at this time. The under drain outlet crosses under the embankment and terminates next to the river. As mining progresses, a slope of 3 height (3h) to 1 vertical (lv) from ground surface to the floor of the mine will be created inside each reservoir. The disturbed areas from the slurry wall to the water line or top of bank armoring will be left as a gravel surface instead of being resoiled and seeded. The area disturbed outside the slurry wall will be resoiled and revegetated. The main entrance to the site is via an existing Private L.G. Everist, Inc. Ragsdale Reservoirs Revised February 11, 2025 10