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<br />Mining Phase <br />Year or Activity Description of Mining and Other Disturbance Activities <br />Mining <br />2-3 Phase 2- Phase 2 mines 50± acres over a 2± year period and includes Parcel D-1 and <br /> part of Parcel D-2. This 50+ acres does not include acreage within the low <br /> flow channel of the S. Platte River east of the proposed Adams County trail <br /> easement azea, but does include a 100' area within 400' of the S. Platte River <br /> channel along the southern boundary ofParcels D-1 and D-2. The mining will <br /> include construction of a ditch to along the PSCo. right-of--way to convey <br /> irrigation tail and drainage water to the S. Platte River to replace the ditch <br /> that presently crosses along the boundary of Phases 2 and 3 to the S. Platte <br /> River. In the interim, this water may be allowed to flow into the excavated <br /> area, and then be discharge by pumping to the S. Platte River in accordance <br /> with an approved discharge permit, if required. As mining within 400' of the <br /> S. Platte River channel requires approval by UD&FCD and agreement on <br /> what S. Platte River channel improvements should be installed as a condition <br /> of approval, no mining will occur within 400' of the S. Platte River channel <br /> without approval and agreement by UD&FCD. The 400' area and the <br /> proposed mining setback area are shown on Exhibit C-2, Mining Plan Map. <br />Mining <br />4-6 Phase 3 Phase 3 mines 82+ acres over a 3+ year period and includes the remaining part <br /> of Parcel D-2. This 82+ acres does not include acreage within the low flow <br /> channel of the S. Platte River east of the Adams County trail easement area, <br /> but does include some area within 400' of the S. Platte River channel along <br /> portions of the eastern boundary of Parcel D-2 as the mining limit follows the <br /> trail easement and then the Sinclair pipeline. As mining within 400' of the S. <br /> Platte River channel requires approval by UD&FCD and agreement on what <br /> S. Platte River channel improvements should be installed as a condition of <br /> approval, no mining will occur within 400' of the S. Platte River without <br /> approval and agreement by UD&FCD. The 400' area and the proposed mining <br /> setback area are shown on Exhibit C-2, Mining Plan Map. A small area of <br /> mining is proposed within 200' of the Sinclair Pipeline along the eastern <br /> side of the phase. No mining shall be allowed within 200' of the Sinclair <br /> Pipeline without an agreement by Sinclair or approval by the DMG of <br /> a lesser setback based on a revised slope stability study. This 200' area <br /> and the proposed mining setback are shown on Exhibit C-2, Mining Plan <br /> Map. The northern boundary of this phase is proposed within 200' of the <br /> five PSCo. towers. No mining shall be allowed within 200' of these towers <br /> without an agreement PSCo., or in the event an acceptable agreement <br /> cannot be obtained, approval by the DMG of a lesser setback with <br /> appropriate conditions based on a revised Slope Stability Analysis. /tern <br /> #7 - Sorenson's commenu <br />7 <br />