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<br />description of the analysis and rationale for rejection, Data gaps in the existing baseline information <br />will bc identified, <br /> <br />The technical aspects of each alternative will be described, the adequacy of existing <br />el1Virorm1enta! d~tl ~ba~t e::lch ilHci1iativ"c evaluai...:u, allu additional information gathered foJ1owing <br />written approval by Reclamation, Once these tasks have been completed, an in-depth analysis of <br />each alternative will be undertaken with the potential environmental impacts of each alternative <br />determined, Alternatives will be rated according to a staI1dard of environmental impacts and ranked <br />in comparison to each other, This analysis will be contained in the DEIS and Final EIS (FEIS), At <br />the conclusion of the above described process, a preferred alternative will be selected, <br /> <br />Assess Data Adequacy <br /> <br />A review of existing information about base resources for each alternative meeting the <br />Purpose and Need test will be made to determinc if sufficient information (e,g" Bureau baseline <br />information, data and analyses, previous NEP A documents, agency baseline data, other third party <br />studies, etc,) is available in order to: <br /> <br />. describc each alternative's features, scope, and relationship to other alternatives; <br /> <br />. describe the existing environment that would be impacted by development. of the <br />alternatives' features; <br /> <br />. describe the environmental impacts that would likely occur; <br /> <br />. address issues raised during scoping meetings and agency reviews, <br /> <br />. Evaluate the adequacy of available information will also dctermine if there is sufficient <br />information to make appropriate impact comparisons among alternatives, to evaluate <br />cumulative impacts, and to address related elements such as connected actions, <br /> <br />A review of data gaps for an initial selection of alternatives will be done to gain a better <br />understanding of the types of data collection that may be required, Some new data gathering may <br />be needed, including reservoir modeling, river modeling, floodplain inundation data, fluctuating flow <br />effects on biota, cumulative impacts, and perhaps endangered species, cultural resources, trout, <br />recreation, land use and water rights, Again, as stated above, the use of existing information will <br />emphasizcd to meet Reclamation's cost effectiveness objective in producing this EIS, <br /> <br />A review of the requirements for compliance with other laws will be made (e,g" Endangered <br />Species Act, National Historic Preservation Act, Clean Water Act), to detcrmine if the baseline <br />information is sufficient to complete whatever applications and analyses will be required, <br /> <br />A time line will be developed for each task, and any conflicts with the overall EIS schedule <br /> <br />Draft May 15, 2000 <br /> <br />9 <br /> <br />Plan of Approach for Navajo Dam Operations EIS <br /> <br />0012;13 <br />