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EXHIBIT D MINING PLAN(CONT) <br /> sequentially from 1 thru 6 as shown on the maps . It may not be <br /> practical to mine Phase 3 until the end of project . If a secondary <br /> haul route cannot be developed for hauling materials from the <br /> eastern area Phase 3 will be used as the Plant Site area throughout <br /> the life of the mine . <br /> Phases 2A, 4A, 4B, and 5A will be mined as described for Phase <br /> lA and prior to, or in conjunction with, mining beginning in the <br /> corresponding reservoir phase in order to provide areas for <br /> disposal of excess overburden and processing fines for those areas . <br /> Sight berms will be constructed along the Railroad ROW on the west <br /> sides of Phase 4 , 4B, 5 and 6 as noted for Phase 3 above . <br /> The following mining methods will apply to all of the <br /> reservoir Phases . Operations will begin in each Phase of reservoir <br /> construction by stripping the area where mining will start . <br /> Initially a 30 acre area will be stripped and periodically as <br /> mining progresses it will be extended so there is approximately 30 <br /> acres ready for mining at any-one-time as each Phase is mined. The <br /> topsoil needed for resoiling the above-water areas will be <br /> separated from the overburden and stored around the mining area for <br /> use in reclamation. Once enough topsoil is salvaged to resoil the <br /> above-water disturbed areas with an average of 6-12 inches, the <br /> rest may be sold. These stockpiles will be placed strategically in <br /> progression with mining, and in some cases the stripped topsoil <br /> will be placed on areas where grading and shaping are complete so <br /> it only has to be handled once . In Phases 1 and 2, all topsoil <br /> storage piles will be located as far from the river as practical, <br /> and will run parallel to the river' s flow if located in the <br /> floodplain. <br /> During the stripping, a slurry wall pad will be built around <br /> the reservoir Phase mining area using the excess topsoil and <br /> overburden. When the slurry wall pad has been completed, the <br /> bentonite slurry wall construction will begin. This is done by <br /> excavating a trench in the pad that is keyed into the underlying <br /> bedrock and filled with a mix of overburden, bentonite and water to <br /> create the slurry that becomes the liner. The overburden not used <br /> in slurry wall construction will be placed in the disposal areas or <br /> sold. <br /> After the slurry wall liner is place within a phase, a <br /> dewatering trench will be excavated. Then a pump will be installed <br /> and dewatering will begin. This will allow the area within the <br /> slurry wall to be dry mined. The trench will be extended around <br /> the area as mining progresses . <br /> The active mining area in the reservoir phase will remain dry. <br /> After mining is completed, final reclamation of the phase can be <br /> completed, including liner certification, final grading of slopes <br /> and initial seeding for revegetation. At this time, the reservoir <br /> will be turned over to the owners . They will be overseeing <br /> construction to complete the reservoir operations facilities and <br /> filling. As mentioned previously, any developed water storage <br /> facility construction that the landowners complete falls under <br /> Reclamation Option B and L.G. Everist will file a Technical <br /> Revision to incorporate the changes . <br /> Dewatering as mining progresses facilitates early testing of <br /> the slurry wall liner, which is required to receive liner approval <br /> L.G. Everist, Inc- Ragsdale Reservoirs June 11, 2020 <br /> D-7 <br />