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MINING PLAN EXHIBIT D (CONT) <br /> There will be a 25-foot or wider digline setback maintained <br /> from the permit boundary so there is adequate space on the level <br /> above the slope for property line access, setback maintenance, <br /> grading and shaping. In Stage VI the setback from the northern <br /> house will be between 210 and 215 feet and on the southern ranch <br /> complex it will vary from 50 to 130 feet . <br /> As mining progresses across a stage the exterior slope will <br /> be mined % to 1 until it is within 55 feet of a stage perimeter <br /> then shaped to the final 3 : 1 rate from the surface to the top of <br /> the first bench. Once that slope toe of that slope is <br /> established another 55 foot wide vertical mining setback will be <br /> established to leave enough material to create the bottom of the <br /> 3 : 1 cut/fill slope along the outer limits of a Stage . <br /> The Plant Site/stockpile area will start on the surface, but <br /> once the initial level is reached it will be moved below grade so <br /> it is screened below the surrounding areas . MAP EXHIBIT C-1 shows <br /> how the site would look when the mine reaches full production. <br /> On the Mining Plan Map the processing/stockpile and <br /> partially reclaimed areas covers approximately 22 . 0 acres, there <br /> is 15 . 0 ac . of bench and working face area and 3 . 0 acres <br /> stripped. The highwall is 500 feet long with approximately 4100 <br /> feet being temporary graded to 2h to lv. As the mining face <br /> extends across the property, we will maintain a 500 foot long, <br /> near vertical, working face . The remaining highwall will be kept <br /> at an interim grade of 2h to lv. The working face will move from <br /> the top bench to the mine floor as it progresses across a given <br /> Stage . The plan is to continue to mine into the sand deposit at <br /> the mining face until the permit limits are reached. . <br /> Typically mining will be done in cycles . These cycles <br /> involve moving a crushing plant into a mine and beginning to <br /> process material until there is a six month to 1 year supply of <br /> material stockpiled. Once an adequate supply is processed, the <br /> processing plant and equipment is moved to another mine . The <br /> stockpiles will be used throughout the year by the company. As <br /> mining ends on a section of the working face it is temporally <br /> graded to 2 : 1 so it is stable when there are no activities in the <br /> mine . Any resoiling and revegetation needed will be completed <br /> when the area where material is removed will not be redisturbed. <br /> This cycle continues until the mine is played out . <br /> 6 <br />