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<br /> <br />will be seeded with a perennial sod-forming grass such as western <br />wheatgrass. <br />Natural of the Deposit <br />The material to be mined consists of unconsolidated sand, gravel, and <br />stones. According to the Geologic Map of Colorado (reprinted 1975), the <br />materials at the site are glacial deposits and have been mapped as the <br />Durango till from work by J.H. Gardner (U.S.G.S. Bull. 341-C). The <br />material is siliceous and no visible evidence is present on site to suggest <br />that any refuse or acid or toxic-forming materials will be exposed by the <br />mining operation. <br />Mining Plan <br />It is planned that operations will commence on the south side of the <br />site (at the existing pit face) and work in northerly and easterly <br />directions. The area to be mined is a finger of a hill and mining will <br />occur by advancing a working face into the hill. The site will be <br />daylighted on the south, west, and northwest sides. Consequently, the <br />depth to be mined below the native ground surface ranges from nearly zero <br />on the sides that are daylighted to about 35 or 40 feet where a cut slope <br />occurs. The pit will be mined using a frontend loader and dozer. <br />The operation is anticipated to be dry except for occasional minor, <br />seasonal ground seepage which may be encountered. <br />It is anticipated that the site will be mined less than one hundred <br />eighty (180) days per year. <br />Processine <br />The aggregate will be removed as pit run material and/or appropriately <br />sized on site using portable crushers and screens. The sized rock will <br />then be stockpiled and removed from stockpiles as needed. The Exhibit C <br />-5- <br />