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Mining/Mining Plan Map (Exhibit C), mining will generally be conducted from the northwest to <br />the southeast. <br />Mining Methods <br />The deposit will be dry mined using dewatering trenches and pumps. Dewatering trenches along <br />the perimeter of the mining area will be used to dewater the deposit prior to mining below the <br />water table. Pumps will be used to remove the water that drains from the deposit and surrounding <br />alluvium into the trench. If necessary, water from the trenches will be circulated through a <br />settling basin prior to it being discharged to irrigation ditches or the Yampa River. <br />When the alluvium is sufficiently dewatered, the aggregate material will be recovered using <br />equipment and facilities typical for sand and gravel mining operations. The equipment and <br />facilities may include, but are not limited to the following: <br />Processing Equipment <br />Portable crushing and screening plant <br />Concrete plant (this plant will be relocated from the nearby North Pit) with accessory office, <br />storage, and employee rooms <br />Asphalt plant (this plant will be relocated from the nearby North Pit) with accessory office, <br />storage, and employee rooms <br />Portable wash plant <br />Earth Moving Etc uipment <br />Dozers, loaders, scrapers, excavators, and compactors will be used for mining and earth <br />moving operations. Field conveyors and off-road haul trucks will be used as needed for <br />mining operations. <br />Miscellaneous <br />An employee/storage trailer, office/scale house, maintenance shop, and fueling/lubricating <br />station will be located on-site. Dewatering pumps and generators and watering trucks will be <br />used as needed. An area for outdoor storage will be located near the concrete plant. <br />As mining progresses, topsoil and overburden will be stripped with scrapers to expose the <br />aggregate product below. All soil and overburden material will be used on-site for reclamation; <br />so long-term stockpiling of these materials is not anticipated. If overburden stockpiles are <br />necessary, they will be located as berms along the perimeter of the mine or within the proposed <br />mining phases for future reclamation purposes. <br />Mining of the aggregate will progress down to the underlying sandstone claystone bedrock of the <br />Browns Park formation. The bedrock material is rippable and, if necessary, may be excavated <br />and used for reclamation. However, since reclamation will occur concurrently with mining, it is <br />not anticipated that bedrock material will be stockpiled long-term prior to use. <br />The active mining face will progress to the south. A portable crushing plant will process <br />aggregate each year for 60 to 100 days. Each year the plant will be set up near the mining face. <br />During mining and prior to reclamation, the phase walls will be a nearly vertical to %zH:l V slope. <br />River Vnlley Resource <br />DMG / 12 Permi[ Amendmen[ <br />Pnge 5 <br />