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r <br /> EXHIBIT D <br /> Mining Plan <br /> The proposed amended Mined Land Reclamation Board (MLRB)Tucson South Resource permit area is <br /> approximately 1.5 miles south of the Aggregate Industries Wattenberg Lakes Mine(M-2004-051), which supplies <br /> aggregate construction materials to much of southern Weld and western Adams counties. The amended Tucson <br /> South Resource Permit Boundary contains substantiated aggregate resources to continue the supply in this region of <br /> Colorado. Supplementing resources at the Wattenberg operation, new supplies from the amended Tucson South <br /> Resource will continue to provide construction materials to meet the Front Range Colorado demand. <br /> Introduction and Overview <br /> The amended Tucson South Resource permit area is currently owned by Aggregate Industries-WCR Inc. and the <br /> City of Aurora and consists of dryland agriculture, a small, partially reclaimed gravel resource and a former <br /> greenhouse growing operation and water utility infrastructure including an above ground tank and auxiliary building. <br /> The property is located both north and south of Colorado Highway 7, bisected by Tucson Street. <br /> Mining of the Tucson South Resource is proposed to happen in three phases. The South cell (Phase 1)is located <br /> south of Colorado Highway 7,the West cell(Phase 3) is located north of Colorado Highway 7 and west of Tucson <br /> Street, and the East cell(Phase 2) is located north of Colorado Highway 7 and east of Tucson Street. <br /> In general,drainage on the site flows toward the South Platte River to the north and east of the property. The South <br /> cell located south of Colorado State Highway 7 generally drains north toward Highway 7 where it is then conveyed <br /> east to the river. The pattern in the West cell either flows to local low spots on the property, is conveyed off-site to <br /> the north, or is conveyed via an irrigation return ditch to the East cell. The East cell generally drains north and east to <br /> the river via overland flow or through existing channels and ditches left by historic disturbance. <br /> With this project the Permit Boundary and the Affected Lands are different areas, as explained below. <br /> Permit Boundary Area <br /> The proposed Permit Boundary contains the following areas as shown on Exhibit C-1 and Exhibit F-1: <br /> • Tracts of land owned by Aggregate Industries-WCR, Inc. referred to on our mapping as Tracts A, B, D, E, F, <br /> H, I and M. <br /> • Tracts of land owned by the City of Aurora referred to on our mapping as Tracts C, G and K. <br /> • Tucson Street right-of-way referred to on our maps as Tract L(the slurry wall liner for the future water <br /> storage reservoir will cross under Tucson Street Right-of-Way(ROW) in two locations as shown on the <br /> Exhibit C-4 and Exhibit C-5 Mine Plan Maps and Exhibit F-2 and Exhibit F-3 Reclamation Plan Maps.) <br /> • Land owned by the City of Thornton referred to on our maps as Tract J. The applicant is working with the <br /> landowner to obtain a right-of-way easement for a conveyor on this tract. The goal is to reduce truck traffic <br /> and transport the material to the existing Wattenberg Lakes Mine(M-2004-051)via conveyor. <br /> Aggregate Industries Tucson South Resource <br /> Permit#M-2004-044112 Permit Amendment <br /> Page D-1 <br />