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stormwater flows and prevent surface runoff from the site. Stormwater entering the active mining cell will be <br /> controlled in the dewatering trenches and, if necessary,circulated through a settling pond prior to being discharged to <br /> South Platte River. <br /> Material Processing and Associated Facilities <br /> Pit run material will be hauled or conveyed off-site to the Wattenberg Lakes site(M-2004-051)to be conveyed for <br /> processing at the Platte Valley site(M-1989-120). <br /> Commodities to be Mined and Intended Use <br /> Sand and gravel for use as construction materials will be the primary products produced from the proposed Tucson <br /> South Resource. Test pits have verified that commercial deposits of sand and gravel exist up to 46 feet below the <br /> surface of the ground. In addition to the commercial sand and gravel materials,topsoil and overburden materials will <br /> be used on-site for reclamation. <br /> Use of Explosives <br /> The material is unconsolidated deposits, no explosives or blasting are required. <br /> Aggregate Industries Tucson South Resource <br /> Permit#M-2004-044112 Permit Amendment <br /> Page D-7 <br />