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Executive Summary <br />FEIS - Navajo Reservoir Operations <br />Some flexibility in reservoir releases exists because water committed for present or future <br />development is not currently fully used. In the long term, flexibility will diminish; in certain <br />drought years, flexibility to go above 250 cfs may not exist at all. Because of this, this FEIS <br />addresses long-term impacts as if flexibility were not available. Currently, however, there <br />may be a significant amount of water available in many, but not all, years, particularly when <br />the reservoir is full or during high-runoff conditions. Water anticipated to be available for <br />this flexibility will be identified and quantified to the extent possible during the Navajo <br />Reservoir Operations meetings and the scheduling of releases will be discussed. Based on <br />recommendations from resource experts, options will be presented for the use of this water <br />and input will be solicited from the public. Reclamation will use this input to make <br />decisions on the release of water from Navajo Dam. <br />These decisions will reflect a priority desire to augment a 250 cfs minimum release during <br />the irrigation season, maintaining irrigation-season releases above 350 cfs while assuring a <br />spring release as described in the Flow Recommendations and assuring recommended <br />minimum flows within critical habitat can be met. Such a release would benefit recreation, <br />hydropower, water quality, fish and wildlife, and other resources. In response to <br />information gained from monitoring, water release flexibility could also be used to conduct <br />experiments guided by the SJRBRIP. <br />Under this alternative, unusually high inflows (other than those associated with spring <br />runoff) resulting in very high reservoir elevations would be released as a spike flow, if <br />necessary, to avoid an uncontrolled spill. <br />500/5000 Alternative <br />During the public scoping process, many people and interests requested that minimum <br />releases not be reduced below 500 cfs. This alternative was included to reduce potential <br />impacts to downstream water users' ability to take water at their diversion structures and to <br />downstream recreation users (trout fishery and rafting) by maintaining higher minimum <br />releases than those under the 250/5000 Alternative. <br />Because Flow Recommendations are not fully met by this alternative, reconsultation under <br />ESA on the ALP Project, NIIP completion, and 3,000 acre-feet of minor unspecified <br />depletions would be required. These depletions and other potential uses face an uncertain <br />future. In addition, Navajo Reservoir would infrequently (less than 1 percent of the years) <br />be drawn down below the NIIP inlet works, thus interfering with irrigation deliveries to the <br />NIIP. Further, maintaining the minimum release at 500 cfs limits the ability to develop <br />water and results in spring peak releases of lesser duration and frequency. A minimum <br />release of 500 cfs also limits the ability to meet Flow Recommendations below Farmington <br />because it leaves less water available to meet spring peaks.