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20 The team recommended that the Service address the demonstrated recovery potential of the San Juan River according to the following: 1. A comprehensive management plan for directing all recovery and other related resource activities should be developed by an interagency team as soon as possible. 2. All appropriate protection measures presently afforded to Colorado squawfish populations in other portions of the Upper Basin should be applied to the San Juan River population. 3. Any anticipated recovery activities for Colorado squawfish in the San Juan River should be closely coordinated with ongoing recovery activities conducted in the Lower Colorado River Basin and those directed by the Recovery Implementation Program. 4. Given existing opportunities for recovery of Colorado squawfish in the San Juan River, the Service should evaluate the potential for operation of the Navajo Dam and Reservoir to realize those opportunities. After considering the Recovery Team's recommendations, the Service updated the Colorado Squawfish Revised Recovery Plan, released August 6, 1991, that includes the San Juan River Basin in both down1isting and de1isting criteria. Effects of the ProDosed Action To determine the effects of the proposed action, an analysis of flow changes was conaucted in accordance with the final rule implementing Section 7 of the Endangered Species Act (50 CFR 402 et seq.). This analysis compared the effects of the Project to a pre-Project Section 7 baseline at the Bluff Gage located near Mexican Hat, Utah. Three levels of development were simulated using a spreadsheet analysis of the hydrological data. The three levels were (1) historical gage, (2) Section 7 environmental baseline (baseline), and (3) baseline plus the Project (post-Project). The period of record selected for the analysis was 1935 to 1962. From this period, wet, dry, and average years were selected for analysis based upon water volumes during the spring runoff. The wet year selected was 1949, the dry year was 1951, and the average year was 1945. The analysis began by securing information on historical flow conditions from the Geological Survey gages. Streamflow records for the Bluff Gage at Mexican Hat. Utah, on the San Juan River were chosen because the gage is located within occupi ed habitat and has along record, The B1 uff Gage also l'ef1 ects most of the tributary inflow between the Navajo Reservoir and Lake Powell. Secondly, projects for inclusion in the baseline for the San Juan River were identified. Pursuant to Section 7 regulations, the baseline for the Project included: (1) the past and present impacts of Federal, State, and private actions in the basin; (2) the anticipated impacts of all Federal projects having previously undergone formal Section 7 consultation in the area; and (3) the