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Further details of overburden and topsoil re- distribution are discussed in Exhibit E: <br />Reclamation Plan. <br />5. Water Handling <br />All water rights issues such as availability of water for this operation, consumption rates, dust <br />control, etc. are presented in Exhibit G - Water Information. <br />During initial topsoil stripping, v — ditches of approximately 18 inch depth and 2.5H:1 V <br />sideslopes will be constructed around the initial area to be disturbed, which will lead to the mine <br />sediment ponds. This is a series of two small ponds as shown on Map C -2A and C -2B. These <br />ponds will be approximately 8 -9 feet high and are located in a natural gully on the west side of <br />the permit area. The ditches will gravity feed these ponds and the lining of these ponds will be <br />the natural gravel that exists on the site. The ponds will be constructed of fill compacted to 90% <br />maximum dry density and the outslope and inslope will be 2.5H:1V. The emergency spillway for <br />each pond will be a trapezoidal spillway of 10 feet width at the bottom, 3H:1V sideslopes and a <br />grade of 1% toward the outslope. The emergency spillways will be lined with durable rock of <br />D50 of 8 inches to an average depth of 12 inches. Each pond will have a 4 inch pipe that will be <br />installed above the sediment cleanout level so that the pond can be dewatered after proper <br />settling has been achieved. The valve will normally be shut and will only be opened when the <br />water quality meets the requirements of the discharge permit. <br />Once the pit has excavated some area, all runoff from the disturbed mining area will be trapped <br />in the excavation and it is extremely unlikely that the ponds will receive runoff after that time. <br />The access road will have v- ditches on the cut slopes that will fall off into the natural terrain on <br />both sides. A 24 inch CMP will be installed in the access road crossing of the Ouray Ditch. <br />The junction of the mine access road and T Road will take place at the crossing of the Montrose <br />West Canal. The current bridge is steel beam and concrete and adequate to handle the loads but <br />will require improvement to the width. The current width of 14 feet must be expanded to a width <br />of 24 feet which matches the access road width and allows full 2 lane traffic. This extra width <br />will be accomplished by removing the existing bridge and replacing it with a new steel and <br />concrete crossing structure that will be designed by a professional engineer and installed <br />Uncompahgre Pit, February 2013 D -7 <br />