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EXHIBIT D <br /> Mining Plan <br /> The Baseline Resource Property has a significant commercial deposit of sand and gravel located <br /> in the alluvium of the South Platte River in Weld County. There are existing mining operations <br /> immediately to the south of this property. The west, north, and east sides of the property are in <br /> agricultural uses. <br /> Mining will occur in three phases; Phase 1 and 3 in Lot C and Phase 2 in Lot B (see Exhibit Q. <br /> The SE parcel and Lot A are not part of this review, but will be processed under Weld County's <br /> Subdivision and Recorded Exemption processes (see Exhibit B). <br /> Before any mining commences in Phase 1, the operator will install a dewatering trench around <br /> the mining area, whereas, in Phases 2 and 3, a slurry wall will be used. The slurry wall will <br /> separate the mine from the adjacent aquifer and prevent ground water depression. <br /> In all the phases, the deposit will be mined through the use of dewatering trenches and pumps. <br /> Initially, scrappers will strip the topsoil and overburden. The topsoil is six inches in depth and <br /> will be stockpiled separately. The overburden consists of clayey sand and silty sand and it will <br /> also be stockpiled separately. Later these stockpiles will be used in reclaiming and sloping the <br /> lakeshore. With in-progress reclamation, it is the intent of the operator to replace the overburden <br /> and topsoil in its final location quickly. As mining progresses, the operator will replace the <br /> topsoil and spread it on the lakeshore immediately after it is stripped from a new mining area. <br /> With the stripping done, the dewatering trenches will be dug down to bedrock in Phases 2 and 3. <br /> However, dewatering trenches in Phase I will be 15 feet deep since the mining area will only be <br /> to a depth of 10 to 12 feet. Trenches in all phases will be constructed on the east, north, and west <br /> sides of areas to be mined. Direction of mining is generally south. When the alluvium is <br /> sufficiently dry, an excavator will excavate the material and deposit it in haul trucks which will <br /> transport the material to the aggregate processing area in Lot B. <br /> The subsurface drilling in Lot B indicates that the deepest deposits are in the east section and <br /> may be up to 45 feet in depth. The shallowest deposits are to the west and are 30 to 35 feet deep. <br /> It is anticipated that the mining areas in Lot C will have similar deposit stratification. <br /> The first area to be dug will be the mining area in Phase 1. The next area to be mined will be in <br /> Phase 2 and will consist of a small pit established as a settling pond for the sand and gravel <br /> washing operation. Mined materials in Phase 1 will be transported to the processing area in <br /> Phase 2 by haul trucks. <br /> After Phase 1 has been mined, mining will then proceed to the Phase 2A area on the north side of <br /> Lot B. Mining will progress southward into the Phase 2B and 2C areas. <br /> D-1 <br />