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Last modified
1/26/2010 12:27:33 PM
Creation date
10/11/2006 9:56:04 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.105
Description
Colorado River-Water Projects-Navajo
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
7/9/2000
Author
BOR
Title
Re-Operation of Navajo Dam-Plan of Approach to Prepare an EIS for Navajo Reservoir Operations
Water Supply Pro - Doc Type
Report/Study
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<br />implementing actions to meet the environmental needs of the endangered fish species, Ongoing and <br />proposed activities under the SJRBIP include re-regulation of flows from Navajo Dam to better meet <br />species needs, control of non-native fishes, propagation of target species, and identification and <br />removal of fish-passage barriers, <br />Flow Recommendations <br /> <br />Under the direction of the SJRBRJP's Biology Committee, test releases were conducted and <br />evaluated during 1992- I 998, At the completion of the research period, the Biology Committee <br />completed a report, Flow Recommendations for the San Juan River (1999), which provides <br />recommended flows for the endangered fishes in the San Juan River below Farmington, New <br />Mexico, The recommendations define the conditions for mimicking a natural hydrograph in tenns <br />of magnitude, duration, and frequency of flows in the San Juan River, This EIS is on the impacts <br />of developing and implementing release rules for Navajo Reservoir to assist in meeting the Biology <br />Committee's flow recommendations for the San Juan River below Farmington, <br /> <br />A NEPA process was not completed for development of the flow recommendations for the <br />reason there was no proposed Federal action with potential significant impacts to the human <br />environment associated with simply developing recommendations, Reclamation considers the action <br />of developing flow recommendations to be categorically excluded from further NEP A compliance <br />in accordance with Part 516, Chapter 2, Appendix 1 ofInterior's Departmental Manual, specifically <br />action 1,10, which reads as follows: <br /> <br />Policies, directives, regulations and guidelines of an administrative, <br />financial, legal, technical or procedural nature; or the environmental <br />effects of which are too broad, speculati ve or conjectural to lend <br />themselves to meaningful analysis and will be subject later to the <br />NEP A process, either collectively or case-by-case, <br /> <br />These recommendations have been accepted by the SJRBRJP Coordination Committee and <br />have been provided to the Service for it's use in future Section 7 consultations, It is the position of <br />the SJRBRJP that these flows are necessary to avoid jeopardizing the continued existence of the <br />endangered fish, If the Service chooses to include these recommendations as part ofa reasonable <br />and prudent alternative for proposed projects in the basin, then the flow criteria would have to be met <br />to avoid a jeopardy finding for endangered fish associated with that project. <br /> <br />Also included in the flow recommendation report are suggested operating rules for several <br />levels of development in the basin, Applying these rules allows water development to proceed and <br />average annual depletion in the basin to increase above the level set in the 1991 opinion (642,100 <br />acre-feet measured at the United States Geological Survey (USGS) gaging station on the San Juan <br />River at Four Comers, New Mexico), These operating procedures are simply recommendations, <br />Any operating procedure that would allow the flow requirements for the fish to be met would be <br />acceptable, However, before new operating rules could be approved, their ability to produce the <br />required flows would have to be demonstrated, Presently, demonstrating the ability to meet the <br /> <br />Draft May 15,2000 <br /> <br />6 <br /> <br />Plan of Approach for Navajo Dam Operations EIS <br /> <br />r'';'''()Q <br />.1 .'_0_'. <br />
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