2014-03-05_REVISION - M2006042 - Laserfiche WebLink

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setbacks around the mined area or on the floor of the excavated area. If the soil stockpiles remain undisturbed for more than one growing season, a cover crop of native grasses recommended by the NRCS will be used to prevent excess erosion of topsoil stockpiles. The material beneath the topsoil will be used for the construction project. This may include coarse gravel, sandy clay, and rock that will serve the needs of the project very well. We do not anticipate any overburden or rock in this area.. The nature of the stratum in this area has been established by the material mined in the adjacent gravel permit operated by Logan County since 1978. The mining operation will remove gravel not to exceed the natural drainage of the surrounding area. In the event the gravel supply is depleted in a given area, we will move into the permit to maintain adequate subsoil to accommodate future root development and plant growth. When mining is complete, the site will be sloped to preserve the natural drainage, similar to what currently exists. As illustrated in the Reclamation plan map, the mining will commence in the southeast portion of the permit area and flow north, northwest. Special attention will be given to the elevation of the initial digging area so not to exceed that depth. There will be a natural slope maintained to prevent the containment of any run-off from rain events. Any runoff will flow naturally back to the McCracken Draw as it has always done in the past. The floor of the mined area will be graded to approximate the slopes of the surrounding topography. Front -end loaders and dozers will be3 used to remove the bank material and deliver it to trucks. On -site equipment may include, but is not limited to, a motor grader, front -end loader, motor scrapers, a dozer, dump trucks, and a water truck. The operator does not plan to have any screening, crushing, or other processing stations on site. We do not anticipate the need for water but in the event that water must be used for dust control, the water will be secured from an approved source and documented. There will be no shop, plant, or other facilities permanently located at the mine site. Equipment will be maintained at the site only when mining is occurring. This will be on a periodic basis since material will only be mined on an as needed basis. Equipment will typically be filled with fuel from portable fuel tanks. Any portable tanks at the site will be placed out of the drainage area and out of the active working area to prevent fuel spills or related hazards. These factors and good housekeeping will minimize the potential of any contamination. Equipment will be serviced out of the mining area. No explosives will be used in this mining enterprise.