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<br />Mining Phase <br />Year or Activi~ Description of Mining and Other Disturbance Activities <br />Mining <br />Phase IA Mining will involve the excavation and storage of 6-12"± of topsoil, <br />excavation and storage of overburden material, excavation of aggregate <br />material and export to Parcel C for processing or direct export off site if there <br />is demand for the material to be used as borrow at the time of excavation. <br />This limited mining to create new wetlands will be part of 1" Phase of mining. <br />The proposed mining setbacks are: 50' from any of the three PSCo. towers, <br />the existing high bank along the east side of the S. Platte River (with <br />UD&FCD approval), 65' from inside top of the high bank of the Fulton <br />Ditch' Item #7 - Sorenson's comments, and 35' from the Spring Creek <br />Ditch, 104' Avenue right-of--way and PSCo. right-of--way. The combination <br />of these setbacks lead to the closest mining being over 35' to the United <br />Power poles in the right-of--way, 85'± to the any of the PSCo. tower <br />structures, 75'± to the Spring Creek Seep Ditch, and 65' to the Fulton Ditch. <br />Mining may also be allowed within 100' of existing high bank along the <br />S. Platte River, if both mining and backfilling are completed between <br />October and March and approval from UD&FCD is obtained. This 100' <br />area is also shown on Exhibit C-2, Mining Plan Map. UD&FCD <br />comments <br />Mining <br />1 Phase 1B Phase 1B mines 25+ acres of Parcel B. Approximately 4± acres of this parcel, <br />within the low flow channel of the S. Platte River, will be left undisturbed, <br />except for any channel improvements required by UD&FCD and any <br />disturbance for support structures for the conveyor. The mining proposed on <br />this parcel is expected to be completed within the 1°' year, and will create <br />approximately 25± acres of temporary lake area. The 25+ acres does include <br />some area within 400' of the S. Platte River channel. As mining within 400' of <br />the 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 without such approval and agreement. This <br />400' area is shown on Exhibit C-2, Mining Plan Map. As with Phase lA, <br />mining may also be allowed within 100' of existing high bank along the <br />S. Platte River, if both mining and backfilling are completed between <br />October and March and approval from UD&FCD is obtained. This l00' <br />area is also shown on Exhibit C-2, Mining Plan Map.UD&FCD <br />comments Mining will involve the excavation and storage of 6-12"+ of <br />topsoil, excavation and storage of overburden material, and the excavation of <br />aggregate material and export to Parcel C for processing. This mining will <br />also be part of 1"Phase of mining. <br />5 <br />