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will supply such a letter to the Division if, at the time of Reclamation, the applicant <br /> intends to use off-site material as backfill. <br /> (b) Earthmoving; <br /> Topsoil, organics, and overburden will be stripped with scrapers or bulldozers and <br /> stockpiled in segregated piles at the edge of the active mine phase. Excavators, front- <br /> end loaders, and bulldozers will be used to excavate the material. Conveyor belts or <br /> haul trucks will be utilized to transport the raw material from the active mine phase to <br /> the processing area. Phase 1 will be mined at a 0.5H:1V slope. Phases 2, 3, and 4a <br /> and 4b will be mined at 3H:1V. <br /> (c) All water diversions and impoundments;and <br /> The perimeter of the mined area will be dewatered by digging a trench to bedrock. <br /> The water will be pumped into a settling pond and discharged in accordance with a <br /> CDPS permit. Wash water for the processing area will be recycled through a series of <br /> small ponds within the processing area. The water required to operate the facility will <br /> likely be provided by the existing water rights associated with the property. No ditches <br /> will be disturbed without prior authorization of the appropriate ditch company. <br /> (d) The size of area(s)to be worked at any one time. <br /> Excluding the processing area, the maximum area to be worked on at any one time is <br /> approximately 30 acres. <br /> (e) An approximate timetable to describe the mining operation. The timetable is for <br /> the purpose of establishing the relationship between mining and reclamation <br /> during the different phases of a mining operation. <br /> The Operator anticipates that mining will commence as soon as all permits are in <br /> place. The Operator anticipates extracting approximately 500,000 tons of aggregate <br /> per year, however, production rate may vary based on market demands. <br /> Timetable for Mining and Reclamation <br /> Phase 1: Mining will begin with the silt storage area in the first year. Stripping of the <br /> plant area and proposed concrete and asphalt plants will also occur. The stockpile <br /> area will be stripped during this time. The plant areas will take approximately a year to <br /> reclaim and will happen at the end of the mine. <br /> Phase 2: This phase will be at the Fort Lupton WWTP evaporation ponds and take <br /> approximately 4 years to mine and 2 years to reclaim. <br /> Phase 3: This phase will consist of the eastern cell and will take approximately 3 years <br /> to mine and 2 years to reclaim. <br /> Inouye Gravel Mine-City of Fort Lupton,WWTP-MLRB 112 Permit Amendment <br /> Exhibit D-2 <br />