2004-06-18_PERMIT FILE - M2004037

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EXHIBIT C Mining Plan 6.3.3. This is an open pit mine located 6-1/4 miles southeast of Haxtun, Colorado, located along the channel of a dry streambed. We anticipate the life of this mine to be between 5 and 10 yeazs depending on our need for material in the azea. The site is currently a dry creek bed. The material will be used to supply gravel for concrete mix. We also expect the owners to remove material they may need on their own property. The land will remain pastureland as mining progresses. Of the 9.9 acres t in the permit azea, all will eventually be mined. The site will be left as a shallow (I S ft. deep) hole in the surrounding pastureland. The site will be mined from the existing working area towazd the north and east. A dozer will be used to mine the material and stockpile it for load out to the job site. We expect to remove the upper 15 feet of sand and gravel deposit for use as concrete mix material. Any topsoil encountered will be saved for use in reclamation and placed azound the mined area or on the floor of the excavated azea Review of well data on the surrounding area indicates the water table is more than 250 feet below the existing ground surface in this azea. We do not expect to encounter ground water on this site because its floor elevation is approximately 180 feet above the closest surface water feature. We will not affect the hydrologic balance of surface or subsurface water in the area. The exterior slopes around the site will be maintained as mining progresses so no side slope grading will be necessary if mining ends prematurely. The exterior slope rate will be 3h to lv from the existing ground level to a point that is approximately 15 feet below the existing ground surface. The floor of the mine will be graded so there is a slight slope to the southeast. Mining will be done by pushing the material into piles from the upper level to the bottom of the mine. Using this method, we avoid creating a vertical working face on the site and reduce the amount of grading necessary as mining ends. The fmal depth may be deeper depending on the actual reserves found as mining progresses. If it is deeper, the sloping plan presented above will be followed. This deposit is an alluvial deposit of gravelly sand lying under the Paoli sandy loam, less than 2% slopes, soil series. It has an unknown depth, but we typically use the upper 15 feet of material. When mining ends, the floor will be leveled and reseeded using the seedmix shown in the soils information. As noted in the soils and vegetation section, there are 8 to 12 inches of topsoil on the site. When encountered, it will be stripped and stockpiles around the perimeter of the site for use in reclamation. If the soil stockpiles remain undisturbed for more than one gzowing season, a cover crop of Western Wheatgrass will be planted at a rate of 3.0 pls/200 Ft2.