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1 <br />5REGRATE <br />, LLC <br />Mining Methods <br />EXHIBIT D <br />The deposit will be dry mined with diversion berms constructed around the perimeter of each mining <br />phase prior to commencing mining operations. Entrapped water will be pumped to temporary <br />dewatering ditches with eventual outfall to Deer Creek and then, the Animas River. Groundwater is not <br />expected to be reached in any mining phase. <br />The equipment and facilities may include, but are not limited to, the following: <br />Processing Equipment <br />Screens, crusher, conveyors, stackers, and other miscellaneous processing equipment <br />Earth Moving Equipment <br />Dozers, loaders, scrapers, excavators, and compactors will be used for mining and earth moving <br />operations <br />Miscellaneous Equipment <br />Dewatering pumps, electrical trailer, generator trailer, small portable generators, and watering trucks <br />will be used as needed <br />As mining progresses, topsoil and overburden will be stripped to expose the aggregate product below. <br />The topsoils and overburden will be stored in mining phase areas 1 and 2 and then phases 7 and 8, <br />according to the direction of mining which is reflected by phases 1 -10. All topsoil and overburden <br />material will be used on -site for reclamation so long -term stockpiling of these materials is not <br />anticipated. Reclamation shall occur concurrently with mining. Reclamation will be initiated by <br />replacing overburden and top -soil, in sequence, when a mined phase is no longer needed for <br />operational room and has been mined to its floor limit. <br />Mining of the aggregate will progress to the underlining bedrock or the lower limiting elevation. At <br />areas where the mining floor would be represented by sandstone, mining will cease and overburden and <br />topsoil replaced over the sandstone facies during reclamation to provide for a minimum soil cover of <br />two (2) feet. During mining the mining faces will have a 0.5H:1V slope. The processed aggregate <br />material will be temporarily stockpiled within the open phase area nearest the Operations Area, outside <br />of a floodplain, before being loaded into trucks for delivery. <br />Mining Phasing <br />Crossfire Aggregate Services anticipates mining and reclaiming the Bonds Pit site in 10 phases, <br />progressing through the phases sequentially as numbered on the Mining Plan Map, Exhibit C (The <br />"Direction of Mining "). Mining phases shall range from about 4 -29 acers per phase and mining activity is <br />expected to last approximately 2 years per phase. The overall time required to complete mining and <br />reclamation is estimated to be 15 to 20 years. Maximum production is anticipated to be 250,000 tons <br />annually. However, it is possible that due to demand fluctuations, mining could progress slower than <br />anticipated and additional time may be required for mining and reclamation of the site. <br />Prepared by Tegre Corp. <br />1199 Main Ave., Suite 101 <br />Durango, CO 81301 <br />(970) 828 -1811 <br />,Ct I,C, <br />