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EXHIBIT D - Mining Plan <br />This is an expansion of an existing 9.9 -acre open pit mine. To access the pit from Crook, take <br />County road 81 (paved) 3'/2 miles north to the first stop sign. Turn left and travel 1 mile west on <br />Co. Rd. 66 to County Road 79, then travel 43/4 miles north to the pit entrance on the east. The <br />entrance to the mine area will be a shared ingress /egress easement with Logan County. They <br />currently operate an adjoin gravel pit (M- 1978 -249). This is not part of either permit and the <br />operators agree to make adjustments in the width of the road to accommodate by -pass traffic if <br />deemed necessary. This operation will not impede the adjoining county operation in any way. <br />We anticipate the life of this expanded mine to be 10 -15 years depending on the amount of <br />material available and the demand for gravel in the market area. Mining in the expanded area <br />will commence as early as a permit can be acquired and end upon exhaustion of the material <br />supply or upon the end of the proposed 10 -15 year period. The material will be used primarily to <br />supply demand for the wind generation units slated for the surrounding area. Following that <br />construction project, the permit will remain active to accommodate any additional needs for <br />repair and maintenance of the established roads and other markets that may be revealed later. <br />The pit should be classified as an intermittent pit. It will be utilized as the need occurs. <br />This site is covered by a gravely deposit designated as the Dix - Eckley Complex (5 -25% slope) <br />soil series in the Soils Conservation report for Logan County. This deposit is typically found in <br />northern Logan County along the gravel breaks of the Peetz Table. This narrow rim is where <br />Logan County typically mines its gravel. This soil series has no unique characteristics but is <br />suitable for use when reclamation begins. When mining ends, the area will be graded to the <br />appropriate slopes. The stockpiled top soil will be re- applied prior to seeding. When <br />reclamation is complete, the site will be returned to its current use as a dryland pasture. <br />A mining setback of at least 15 feet will be maintained around the site. All slopes created will be <br />excavated at their final stage as mining progresses similar to the surrounding topography. Of the <br />27.8 + in the permitted area, approximately 26.1 acres will be mined and the remaining area will <br />be used for setbacks, stockpiles, and access. We also note that approximately 4.2 acres in the <br />original pit has already been mined and re- vegetated. This site is a series of gravelly fingers that <br />feed the sand drainage that travel southeast. Mining will first be completed within the original <br />110 permit boundaries, then move to areas north and east. Mining efforts will level out the top <br />of the ridges creating a flatter area with gentle slopes facing the south - southwest. Mining will be <br />done in such a way not to create benches or impoundments. <br />The site will be mined in the direction shown on the mining map. There is already an existing <br />road into the site. There will be additional internal haul roads created as mining occurs. Mining <br />in the expanded pit will not impede the efforts in the adjoining county pit. Changes to the access <br />road can and will be made to make sure the two operations do not interfere. The product will <br />enter onto County Road 79 and use existing county roads to transport to the construction sites. A <br />portion of the site will be used to stockpile topsoil until it is needed. <br />The material is a gravel cobble deposit suitable for making roads and construction bases. <br />The upper 2 - 3 inches of material will be stockpiled for use in reclamation. As mining <br />occurs, the stockpile location(s) will be adjusted according to field conditions and amount of <br />