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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 site disturbance. Map C-2 shows the mining plan. Mine access will be via <br /> US-6. The primary commodity to be mined is sand and gravel for the purpose of producing <br /> construction materials. Fill dirt may be incidentally produced during the operation. <br /> The gravel zone is estimated to be roughly 60 feet thick in an alluvial deposit and is overlain by <br /> roughly 5-20 feet of overburden and topped by six to twelve inches of topsoil. The sand and <br /> gravel deposit overlays the Eagle Valley Evaporite of the Pennsylvanian Formation. This <br /> bedrock is siltstones, anhydrite, and gypsum. Mining operations are expected to stop at or before <br /> a depth of 60 feet roughly at the grade of the highway. Mining may proceed deeper if the deposit <br /> continues, but that is not anticipated at this town. <br /> In general, the site is mined from west to east. Map C-2 shows the configuration of the site <br /> during mining. Map C-2 also shows the configuration of the fully mined out pit as well as the <br /> location of the processing plants, stockpiles and office/shop area. Processing of material will <br /> involve crushing and screening at a minimum. Crushing and screening will take place near to the <br /> active mining highwall, with a loader directly feeding the crusher/screen. Crushed and screened <br /> material is then transported to the facilities area near the site entrance. Portions of this material <br /> are further processed to produce higher value products such as washed rock, asphalt, or concrete. <br /> All products that are not directly loaded into equipment for off-site delivery will be stored in <br /> stockpiles in this facilities area. <br /> The mining will be done contemporaneously with the reclamation. This means that as areas are <br /> mined out completely,they will be graded to the final condition, and then topsoiled and <br /> revegetated according to the reclamation plan. Initially, topsoil will be stripped from an area of <br /> approximately 10 acres in order to create the location for initial facilities and mining. <br /> The depth of mining will be roughly 60 feet. It will be mined in two roughly 30 foot passes. The <br /> first pass will begin with the development of the facilities area. Once roughly 10 acres of ground <br /> Tower Pit <br /> October 2018 D-1 <br />