2025-12-12_PERMIT FILE - M2025063 (2)

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EXHIBIT D MINING PLAN(coax) cover the backfill area or to build slopes from the current surface to the floor of the mine. 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 direc- tion of mining as it progresses across the site. The plan is to have the maximum disturbance set at 45. 46 acres but to set the bonded disturbance to 15 acres ± to allow for flexibility during mining. This bonded area will include, stripped, partially mined, partially backfilled and reclaimed areas, Plant Site, and materials stockpile area. The undisturbed area will continue to be use to grow crops until needed for mining. Once backfilling is done on part of the mined area it will return to crop produc- tion during the next growing season. The plan is to mine to the setback on a near vertical face and then backfill from the exist- ing surface to the mine floor leaving a temporary 2h to lv slope on the exterior sides. This will leave a stable slope around the perimeter until the final fill is placed. No more that 600 feet of backfill sloping will need to be done as mining progresses . The grey area on the Mining Plan Map shows the maximum backfill sloping data and the cut/fill volumes for the working face that extends across the site. If mining ended prematurely only the working face area would need to be cut/fill sloped, 600 feet of backfill sloping on the mines perimeter and 10 acres would need to be resoiled. Of the 45 . 46 acres ± in the permit area, approximately 38.71 acres ± will be disturbed by mining. We have 3 options for final reclamation the first 2 involve backfilling the mined area to within 10 to 12 feet of the existing surface leaving 2H: 1V slopes around the field. The 3 Reclamation options are discussed in the reclamation Plan text . It is not know at this time how much inert fill material will be available so the operator is planning to backfill the side slope area to 2 : 1 slopes ahead off floor backfilling to eliminate the need to import fill for bonding purposes should the Division have to complete reclamation. There will be adequate overburden on the mine to backfill 600 feet of the exterior slope on either side of the working faces as show on 8 1/2 Enterprises LLC. December 9, 2025 Sasaki Pit 9