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002510 ..Restore some of the natural system dynamics along the river corridor --Help the National Park Service manage riparian habitats MAXIMUM RELEASE --Within PP capacity (33,200cfs); --45,000 cfs, plus or minus 1,000 steady release, plus or minus 1,000 cfs for power. The EIS provided cfs for power for flows at least 10.000 cfs above the maximum allowable release in a minimum release year. For the MLFF alternative, that maximum release is 30,000 cfs, so the BHBF would be at least 40,000 cfs DURATION/FREQUENCY Duration: 7-14 days Duration: 7-14 days Freauencv: Annually, as hydrology Freauencv: 1 in every 5 years, as provides hydrology provides HYDROLOGY --When projected storage in Lake --When projected storage in Lake Powell on January 1 is less than 19 Powell on January I is less than 19 maf. If projected storage is greater maf (the intent being to minimize than 19 maf. releases are likely to releases above PP capacity) be at or more than PP capacity TIMING March: --In the spring (to coincide with the May/June peak in the natural --reform backwater channels prior hydrologic cycle) or in late to humpback chub spawning summer when, due to local thunderstorms, tributaries are --more sediment likely available expected so supply large quantities from tributaries in March of sediment (especially silt and --prior to peak recreational season clay) and nutrients --however, other months to be --The exact season and duration would be detennined through considered through adaptive adaptive management and management scheduled through the Annual Operating Plan process OTHER CONSIDERATIONS --Would not be scheduled in a year --Must be sufficient quantities of when there is concern for a sediment available sensitive resource, such as sediment or an endangered species --Would not be scheduled following a year in which a large population of young humpback chub is produced 0,4 0''''