Laserfiche WebLink
• • 0 <br />Table 2. Release Priorities for the Environmental Account for the Water Year 2008 (The rwo pulse,now periods are shaderl.) <br />March 23 - MaY 10* 2,400 whoo crane fish communi <br />Pmg ? h', Piping <br />With similar gains as in 2007 during this time period, <br /> 2,400 plover, least tern, sandhill crane projected flows indicate dry year targets will not be <br /> 1,700 met. A medium/low priority is given to maintaining <br /> adequate base flows during this important time period, <br /> if necessary, for spring crane migrarion. <br />May 1- June 30* 10-year ninning The principal affected resources are river and LOW This second pulse/peak period of the bi-modal historic <br /> average of 30- riparian wetland processes such as Platte River hydrograph was physically and <br /> day exceedance maintaining channel morphology; sediment biologically significant for maintaining and creating <br /> for 3,400 cfs, supply; sandbar formarion; nutrient cycling; native species habitats. Historically, frequent peak <br /> and 5-day backwater habitats; groundwater recharge; flows occurred during this period primarily due to <br /> exceedance of and behavioral cues for fish spawning; melting mountain snowpack. Currently, operational <br /> 8,300-10,500 cfs reproduction, movement, and redistriburion. and biologic consiraints come into play during this <br /> late spring pu1sE'peak time period which make EA <br /> pulse flow implementarion more difficult. At this <br /> time, the Service does not plan to pursue <br /> implementation of EA pulse flows in May or June. <br /> Unril information indicates otherwise, this time period <br /> is given a low priority for EA pulse flow <br /> implementation. <br />May 11 - Sept 15* 1,200 fish community, least tern Based on recent drought conditions, shortages will <br /> 1,200 again occur during much of this time period. If <br /> 800 hydrological conditions improve in the basin making <br /> effective summer flow augmentation possible as in <br /> 2007, a medium priority is given to augmenting low <br /> flows during this time period. <br />Sept 16 - Sept 30 1,000 fish community Low Based on recent drought conditions, zero to very low <br /> 1,000 flow condirions could again occur during this time <br /> 600 period. Because EA water may be limited and tems <br /> and plovers have migrated out of the area by this time, <br /> a lower priority is given. If river flows recover by tlus <br /> time, lower ambient temperatures and decreasing <br /> irrigation demand should result in improving river <br /> conditions for the fish community. <br />Water Year 2008 EA AOP 17 October 15, 2007