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<br />Per Rule 6.5, a Geotechnical Stability Exhibit demonstrating the appropriateness of these setbacks <br />is included with this permit application, but per comments of the DMG written agreements with <br />PSCo. and Sinclair Pipeline, or a revised Stability Analysis acceptable to the DMG proposing lesser <br />setbacks, will determine setbacks from the PSCo. towers and the Sinclair Pipeline. <br />The only present uses on the property are range land for cattle on the portions of the property west <br />of the S. Platte River, and an area of the plant site presently used for mobile home storage. No <br />' structures exist on any of the property except for fencing and isolated farm structures on the portions <br />ofthe property west of the River. There are extensive tree stands along the River and on portions of <br />Parcel A A Division of Wddlife (DOVi~ questionnaire was completed, and no endangered or critical <br />wildlife habitat was identified. Surveys for the Ute Ladies tresses orchid and the Prebles meadow <br />jumping mouse were also conducted, and neither were found to be present. It is expected that <br />jurisdictional wetlands on portions ofPazcel B, Parcel C, and perhaps Parcel A will be identified, and <br />a permit from the Army Corp of Engineers to create replacement wetlands will be necessary to <br />remove all or portions of any identified wetland areas. A wetland delineation is being prepared by <br />' another consultant, who will also process the necessary permit to remove any existing wetlands and <br />provide for wetland's replacement, and prior to excavation of any jurisdictional wetlands requiring <br />a 404 permit for excavation and filling, the appropriate 404 permit will be obtained from the Corp of <br />Engineers. (CCP#5) <br />All of the property east and most of the property west of the S. Platte River are within the 100 year <br />' floodplain of the River. No mining shall occur within 400' of the low flow channel of the S. Platte <br />River without approval of the Urban Drainage and Flood Control District (iJD&FCD), and all <br />activities within the 100 year floodplain of the S. Platte River shall require a Flood Plain Use Permit <br />from Adams County. (CCP#11) Any stockpiles of topsoil and overburden in the floodplain, and <br />particularly in the floodway area, will be placed in accordance with approvals of the UD&FCD (CS# 1 <br />& CS#12) and the Floodplain Use Permit (CCP#12). General proposed standards for the placement <br />of stockpiles in any floodplain area have been included in Exhibit G. A conveyor will also be <br />consUUCted across the S. Platte River and Fulton Ditch Company properly from the west portion of <br />the property (D parcels) to the plant site (C parcels). A Floodplain Use permit from Adams County <br />for the conveyor's support structures in the S. Platte River floodplain area will be obtained <br />(CCP#12), as will approval from the Fulton Ditch Company to cross their property (CCP#7J. <br />' The site contains approximately 1+ feet of topsoil and overburden overlying 30± feet of alluvium <br />sand and gravel material underlain by clay shale and/or claystone bedrock, which acts as a natural <br />barrier between the alluvium aquifer and the deeper bedrock aquifers. A slurry wall will be installed <br />' around the perimeter of the D parcels to limit groundwater infiltration for dry mining and a future <br />sealed storage water facility for reclamation. <br /> <br /> <br /> <br />1 <br />