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EXHIBIT D MINING PLAN <br /> 1 . General Mining Plan <br /> The property boundary has been surveyed. Map C-3 outlines the mining plan including the <br /> affected area of 44.3-acre. Sand and gravel will be extracted for use in construction materials <br /> such as crushed rock, sand, washed rock, concrete, and asphalt. There is also the possibility of <br /> incidental fill dirt production. <br /> Access to the mine will be through a new road constructed between the current site and <br /> Chavers Mining Resource (M-2015-030). This road has been included in the legal description. <br /> The access road has been specifically designed to accommodate mine traffic, with all necessary <br /> earthwork for road improvement completed before mining begins. To prevent groundwater <br /> infiltration into the pit and facilitate water storage, a slurry wall will be installed around the mining <br /> area. <br /> Dozers and scrapers will strip topsoil and overburden from mining areas, storing them in <br /> designated stockpiles. Any stockpile remaining for over 90 days will be seeded to prevent <br /> erosion. During pre-mine stripping, all existing buildings, except the manufactured home and <br /> garages, will be demolished, and debris will be entirely removed from the site. Sand and gravel <br /> extraction will involve loaders, excavators, dozers, and trucks, with material transported to <br /> Chavers Mining Resource for processing. Backfill materials may be hauled back to this site from <br /> the Chavers Mining Resource. While haul trucks are currently anticipated, there is potential for <br /> replacement by a conveyor belt in the future. <br /> The sand and gravel deposit, averaging 20-23 feet in thickness, will be mined progressively <br /> from north to south. Mining and reclamation will occur simultaneously to minimize overall <br /> disturbance. There is ample on-site topsoil and overburden for successful reclamation, <br /> transforming the site into water storage ponds surrounded by rangeland. The reclamation <br /> process will involve backfilling, regrading, topsoiling, and revegetation. Some or all of the water <br /> storage pond may be filled based on market demands for inert fill disposal. <br /> Mining will extend to the bottom of the gravel deposit, maintaining final mining slopes at 1.5H:1V <br /> along the perimeter. The active highwall will have a near-vertical slope, progressing halfway <br /> down the final mining slope to enable the dozer to knock down the remaining highwall, creating <br /> the completed mining slope. Slopes will then be backfilled with sand or overburden to achieve <br /> the reclaimed 3H:1V slopes, with specific slope details available on Map C-4 cross sections. <br /> No blasting will occur at the Marcovich Mining Resource. If refuse, acid, or toxic materials are <br /> unexpectedly encountered, these materials will be removed from the site and disposed of <br /> appropriately. <br /> Marcovich Gravel Pit <br /> May 2024 D-1 Lewicki& Associates <br />