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<br /> <br />As a stabilization measure, soil stockpiled for longer than one year <br />~ will be seeded with a perennial sod forming grass such as western <br />wheatgrass. <br />Nature of the Aggregate Deposit <br />The aggregate present on site consists of unconsolidated sand, gravel, <br />and stones. The aggregate is dominantly siliceous and no visible evidence <br />is present on site to suggest that any refuse or acid or toxic-forming <br />materials will be exposed by the mining operation. According to the <br />Geologic Map of Colorado (reprinted 1975), the aggregate is relict glacial <br />outwash or interglacial deposits (from work by W.W. Atwood and K.F. Mather, <br />U.S.G.S. Prof. Paper 166). The material lies disconformably over fine- <br />grained sedimentary units. vwf.~.wC~~'~(a~ ~ <br />Mining Plan <br />It is planned that mining operations will continue in the existing pit <br />and advance the workings in north-westerly, easterly and southerly <br />directions. The pit will be mined using frontend loaders and dozers as <br />necessary. The pit will be mined to depths of up to about 30 feet and <br />daylight the terrace along the east side of the site. Borrow material will <br />also be obtained from the site as necessary. The operation is expected to <br />be dry. <br />Initially, the site will be mined by loading directly into haul trucks <br />~ LO,~~ ~5 and transporting the aggregate to the cc~any's plant in Montrose for <br />U _~ n~ processing. Product stockpiles will also be created on site and depleted <br />~'~ as necessary. <br />It is anticipated that the site will be mined less than one hundred <br />eighty (180) days per year. <br />-5- <br />