2025-02-13_REVISION - M2020007 (6)

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EXHIBIT D MINING PLAN (CONT) overburden will be retained and used in the backfill areas shown on the maps or removed from the site. The topsoil and overburden stockpiles will be located around the excavation, typical piles in possible locations are shown on the MAP EXHIBIT C 1 MINING PLAN MAP. If the soil stockpiles remain undisturbed for more than one year, a cover crop of the approved seed mix, at the rate called for in the Reclamation Plan, will be used to revegetate them. MINING PLAN MAP EXHIBIT C-1 -MINING PLAN MAP shows the approximate direction of mining as it progresses across the site. The plan is for having 350 acres of maximum disturbance, of which the bonded amount may be less, due to areas that lie below the high water line of a reservoir that has all slope grading completed. This will allow for flexibility during mine development, rather than trying to limit the disturbance to small areas . The 350 acre will include areas that are stripped, partially mined, partially reclaimed, the Plant Site and material stockpile areas and future reservoir areas . As mining progresses across the property, some parts of the property will remain undisturbed while other areas will be either stripped, mined, partially reclaimed or totally reclaimed. The MAP EXHIBIT C 1 MINING PLAN MAP shows how the area would look if the entire area was mined prior to backfilling. At the present time, approximately 23% of Phase 2, and all of Phase 1 is mined, and the slurry wall liners are completed for both phases and being tested for DWR certification. In Phase 1, the side slopes are complete, the gravel band is being prepared and the bank armoring along the river is in place. Growth medium is stockpiled along the slurry wall perimeter so the disturbed areas can be resoiled and revegetated when mining ends in the Phase. There is still some material left on the floor of the reservoir that is being removed. Phase lA is mined, partially refilled, and currently being used as a settling pond. In Phase 2, the slurry wall is installed and an area in the southeast part of the reservoir area is stripped. Mining began in this area and is working west and north. Side slopes are being constructed as mining progresses, so only the working face area would need to be shaped, and 100 acres or less would need to be resoiled, if mining ended at this time. Phase 3 is the active Plant Site, equipment storage and stockpile area and will remain as such for the life of the mine. L.G. Everist, Inc. Ragsdale Reservoirs Revised February 11, 2025 14