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• FLOOD PLAINS <br />Affected Environment: No floodplains are present in the area affected by the proposed coal <br />lease. <br />Environmental Consequences, both alternatives: None <br />Mitigative Measures: None <br />Name of specialist and date: Ole Olsen, 5/2/08 <br />INVASIVE, NONNATIVE SPECIES <br />Affected Environment: Houndstongue, hoary cress (whitetop), Canada thistle, and other <br />biennial thistles are known to occur in this area. There is the potential for noxious weeds, <br />such as dalmatian and yellow toadflax, leafy spurge, knapweeds, perennial pepperweed and <br />others, to exist and spread in these areas. <br />Environmental Consequences, Proposed Action: Since the proposed action is underground, <br />it is not anticipated that the proposed action would increase noxious or invasive species <br />. throughout the affected area. Some amount of surface disturbance will be required for <br />vents and other facilities that will support the underground mining operations and detection <br />and control of any weeds that are established in these areas could easily be accomplished. <br />Vehicular traffic associated with coal mining, as well as wind and water can cause invasive <br />species to spread into new areas. The utilization of interim reclamation techniques can <br />facilitate control of invasive species and reduce the potential of long term infestation of <br />invasive and noxious weed species. All principles of Integrated Pest Management should <br />be employed to control noxious weeds on public lands. <br />Environmental Consequences, No Action: The application would be denied and invasive <br />species would not be affected. <br />Mitigative Measures: Integrated pest management techniques will be employed to control <br />noxious weeds on disturbed areas at surface facilities and roads and where they have spread <br />onto adjacent lands from these facilities. <br />Name of specialist and date: Ole Olsen, 5/2/08 <br />MIGRATORY BIRDS <br />Affected Environment: The proposed project area is located near historic golden eagle <br />nesting habitat but does not contain any likely nesting habitat for this species. The project <br />• area does provide nesting habitat for Brewers sparrow and sage sparrow. These three