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Exhibit D <br /> Page 14 <br /> the wet plant feed bin.It is anticipated that the ROM stockpile will occupy a nominal 8.5-acre area, <br /> sufficient to contain approximately 200,000 tons of live capacity. <br /> Following plant shakedown and startup,mining will then commence in the eastern portion of the Year 1 <br /> mine block(proximal to the mine plant)in order to excavate sufficient void space to accommodate both <br /> the long-term growth medium stockpile and the Process Discard Stockpile(PDS), both of which are to be <br /> established on the pit floor of the Year 1 mine block. <br /> • Year 1—Initiation of Mining Activity(West Portion of Section 2) <br /> In follow-up to the Year 0 startup activities,the subsequent Year 1 pre-strip(of growth medium)is <br /> anticipated to generate an additional approximately 108,000 cubic yards of material, all of which is slated <br /> to go to the long-term storage stockpile(TS-1). <br /> The Year 1 mining activity,in total, is projected to encompass approximately 127.3 acres of mined area, <br /> with the mined tonnage(ROM)anticipated to be approximately 5.0 million tons(i.e.,an immediate ramp- <br /> up to full-scale production levels is planned).An estimated 868,000 cubic yards of process discard <br /> material will be placed within the earlier-established Process Discard Stockpile(PDS)area. Continued <br /> establishment of a pit void(to accommodate TS-1 and the PDS feature within the pit)is one objective of <br /> Year 1 mining. <br /> No reclamation activity is planned during Year 1. <br /> • Year 2 Mining Activity(Eastern Portion of Section 3) <br /> Year 2 pre-strip(of growth medium)is anticipated to generate an estimated 173,000 cubic yards of <br /> material,all of which is slated to go to the long-term storage stockpile(TS-1),bringing the total stored <br /> volume within TS-1 to approximately 280,000 cubic yards. <br /> The Year 2 mining activity will continue with a westerly expansion of the active mining face by <br /> continuing a westerly advance into Section 3. The Year 2 mine block encompasses approximately 107.5 <br /> acres,with an anticipated ROM production of approximately 5.1 million tons.Approximately 883,000 <br /> tons of process discard are anticipated to be produced and placed within the PDS area during Year 2. <br /> Continued establishment of sufficient pit void(to accommodate TS-1 and the PDS feature within the pit) <br /> remains as an objective of Year 2 mining. <br /> No reclamation activity is planned for Year 2. <br /> • Year 3 Mining Activity(East-Central Portion of Section 3) <br /> Year 3 pre-strip(of growth medium) is anticipated to generate an estimated 149,000 cubic yards of <br /> material,of which an estimated 67,000 cubic yards is anticipated to be dedicated to the initial stages of <br /> concurrent reclamation,with an estimated 82,000 cubic yards slated to go to the long-term storage <br /> stockpile(TS-1).This would result in approximately 42 acres having been reclaimed(largely within the <br /> Year 3 mining block),while bringing the total stored volume within TS-1 to approximately 362,000 cubic <br /> yards. <br /> Colorado Sand Company II, LLC <br /> Kersey Mine Construction Material Regular(112)Operation Reclamation Permit Application <br /> June 7,2024 <br />