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I I. I I I J I I , Ie , I I t I I I ,. I 1994 RESERVOIR OPERATIONS Minimum instream flow levels have been established at several locations in the Upper and Lower Basins which are intended to preserve the present aquatic resources downstream of specific dams, . The regulation of the Colorado River has had both positive and negative effects on aquatic resources. Controlled cool water releases from dams have provided for increased productivity of some aquatic resources and the development of significant sport fisheries, However, the same releases have been detrimental to endangered and other native species of fishes, Consultations with the Fish and Wildlife Service in compliance with Section 7 of the Endangered Species Act (Section 7 consultations) on the operation of the Aspinall Unit on the Gunnison River, Navajo'Dam on the San Juan River, and on Flaming Gorge on the Green River will continue in 1994. Studies associated with these consultations will be used to better understand the flow related needs of endangered and other native species of fish. Additionally, interim flow restrictions on releases from Lake Powell will continue in water year 1994 while the Glen Canyon Dam Environmental Impact Statement (GCDEIS) is being prepared. Modifications to planned operations may be made based on changes in forecast conditions, However, due to the Recovery Implementation Programs for Endangered Fish Species in the Upper Colorado River Basin, Section 7 consultations, and other downstream concerns, modification to the monthly operation plans may not be based solely on changes in streamflow forecasts, Decisions on spring peak releases and downstream habitat target flows may be made midway through the runoff season, Reclamation and the Fish and Wildlife Service will initiate meetings with interested parties, including representatives of the basin states, to facilitate the decisions necessary to finalize site specific operations plans. All operations will be undertaken subject to the primary water storage and delivery requirements established by "The Law of the River", including Endangered Species Act compliance and other applicable statutes. The following paragraphs discuss the operation of each of the reservoirs with respect to compact, decree, statutory, water delivery obligations, and instream flow needs for maintaining or improving aquatic resources, where appropriate, Fontenelle Reservoir Due to the effects of the previous six years of drought, the April through July runoff into the reservoir during water year 1993 was only 934 MCM (.757 MAF) or 89 percent of the long term average even though the snowpack within the basin at times was 130 percent of average. The Upper Green River was the only subbasin where inflows were near average in water year 1993, With near average inflows Fontenelle easily filled in 1993 and flows of up to 118.9 m3/s (4,200 cfs) were released. 7