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11 '' <br />• • <br />EXHIBIT D <br />1•SINING PLAN <br />Mining is proposed to be conducted in 3 phases. Phase 1 will begin in <br />southwest corner and proceed easterly. Phase 2 will start on the south- <br />ern boundary and move north into Phase 3 to completion of extraction. <br />Excavation as proposed will serve to minimize surface disturbance <br />at any one time. The end result will leave 2 lakes as part of the recla- <br />mation plan. <br />The deposit ranges from 40 to 60' in depth capped with 2 to 8' of over- <br />. burden and topsoil. Projected business demand suggests that lk to 2 <br />acres per year will be mined.Topsoil and overburden will be removed <br />in each phase in increments large enough to allow for 2 to 3 years <br />mining. The topsoil will be segregated and preserved for reclamation. <br />Overburden will be used to shape and reslope'the banks~at 3 to 1 to <br />10' below the waterline and 2 to 1 thereafter as required. Excess <br />overburden, if any, will be used to add sinuosity to the shoreline. <br />Aggregate will be extracted from the pit by dragline and stockpiled <br />next to the pit to drain before transport to the crusher. The material <br />will be moved to the crusher by trucks, front end loaders, scrapers, <br />field conveyors or any combination of the above. <br />No dewatering is projected so no NPDES permit is required. The pit does <br />not affect wetlands so no 404 Corps of Engineers Permit is required. <br />The proposed timetable is based on the best estimate of business pro- _ <br />jections at this time. Increased or decreased demand could result in <br />a drastic change in this timetable. . <br />~ ~~~~~ .azq ~-~ <br />JUN L4 191 <br />PJIINED LAND REGI_APi{A710N <br />Colo. Dept. of Natural Resources <br />