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MINING PLAN <br />EXHIBIT D (CONT) <br />area affected at I any-one-time will range between 5 to 20 acres <br />with a maximum of 20 acres ±. <br />The back sloping and final pit floor grading will be done <br />during mining. Ir is planned to start reclaiming 5 acres as they <br />are deemed minedlout. This allows the operator the allotted time <br />to establish a planned reclamation plan and continue to mine, <br />hence the 20 acre floating bond. As stated before, this site is <br />on an upland terrace deposit with the following characteristics: <br />C <br />The areas to be mined are MIK Midway - Ritoazul complex, <br />5 to 35 percent slopes and MnB Mananst silty clay loam, <br />1 to 3 percent slopes. It is estimated that the deposit <br />is from 5 to 35 feet deep with negligible overburden <br />and from 6 to 9 inches of topsoil. Since the permit <br />was originally approved in 2006 the NRCS has changed <br />the names of some of the soil types so we have provided <br />an updated soils report as part of this permit packet. <br />The stratum I beneath the deposit is presumed to be sandstone, <br />shale, or conglomerate or a combination thereof. No ground water <br />will be encountered in this mine and all stormwater will be <br />directed to holding ponds built on'the mined area. Due to the <br />nature of the site we will not hold stormwater past the 72 hours <br />required by the Colorado State Engineers Office. In the past any <br />stormwater that collects evaporates or soaks into the ground <br />within the first148 hours. I <br />STAGING CHANGES <br />In the existing permit Leone Sand and Gravel is committed to <br />working in 20 acres areas sequentially around the mine in a <br />counter clock wise direction. This was to be done, using a <br />series of 11 Mining Areas. In the new area, we will not use <br />areas to define mining direction or limit what area may be mined <br />at one time. Instead we propose leaving the 20 acre maximum <br />disturbance area Ias a limitation, but instead of being in a <br />specific location and time it will float around the mining area <br />with the general plan to mine from1north to south across the <br />deposit. This allows more flexibility during the mines develop- <br />ment as we will be able to mine areas that may contain specific <br />materials needed to make a product.# Since the deposit lies on a <br />number of fingers along the east and south edges of the mesa, the <br />plan is to start mining on the north end, work south on the main <br />. 6 <br />I <br />