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EXHIBIT D MINING PLAN <br /> 1 . General Mining Plan <br /> The property boundary has been surveyed on site and the permit area will be surveyed prior to <br /> any additional acreage to the site disturbance. Map C-2 shows the mining plan. Map C-2A <br /> shows the mining plan at a snapshot in time prior to daylighting the mine flood out to the east. <br /> Mine access will be from the United/Norwood Pit located directly north, which has access from <br /> County Rd 44Z N to the west. The primary commodity to be mined is sand and gravel for the <br /> purpose of producing construction materials. Fill dirt may be incidentally produced during the <br /> operation. <br /> The gravel zone varies with an average 25 foot thickness within the alluvial deposit. This zone is <br /> reaches up to 40 foot depths on the east of the site and thins out to a daylight on the east of the <br /> site. The alluvial deposit is overlain by an estimated 50 inches of overburden as well as 4 inches <br /> of topsoil. <br /> In general, the site is mined from northwest to southeast. Map C-2 shows the configuration of <br /> the site during mining. Map C-2 also shows the configuration of the fully mined out pit. Mined <br /> material will be transported for processing to the United/Norwood Pit to the north. Processing of <br /> material is included in the currently approved United/Norwood Pit permit. <br /> The mining and reclamation will be done concurrently. Mining will occur to the bottom of the <br /> gravel deposit, which is also the final grading for the reclamation plan. After approximately 13 <br /> acres of the pit is mined out, the mined area will be topsoiled and revegetated according to the <br /> reclamation plan. This will be repeated for the remaining portions of the pit after the second half <br /> is mined out. <br /> Mining will be conducted with loaders, hoes, dozers, and off-highway haul trucks. Dozers or <br /> scrapers will strip topsoil from the area to be stored in the northeast of the site. Loaders and <br /> hoes will then excavate material to be hauled to the United/Norwood Pit for processing. Some <br /> product stockpiled will be stored on site prior to processing. No blasting will take place at the <br /> Skelton Pit. No refuse, acid or toxic producing materials are expected to be encountered in this <br /> operation. If these materials are encountered, at least two feet of inert material will be placed <br /> over the area and mining will move to a different area. <br /> The active mining face will be vertical, but the final mining slopes will be the same as the <br /> reclaimed slopes at 31-1:1 V. Map C-3 shows cross sections of the pit with these final slopes. <br /> The expected annual average production is 100,000 tons. Actual production rates will fluctuate <br /> based on market conditions. The raw material will be used in producing construction material <br /> products at the United/Norwood Pit. A breakdown of the anticipated product tonnages and <br /> mined tonnages can be seen in Table D-1. A breakdown of the estimated areas is included in <br /> Table D-2. <br /> Skelton Pit <br /> January 2022 C-1 Lewicki&Associates <br />