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EA AOP Prioritization Talble
<br />Release Guidelines for the Environmental Account (The rwo pulse flow periods are shaded.)
<br />Period Flow Targets (cfs) Principal Affected Resources Water
<br /> at G.I. Year
<br /> WedAvera e2. Priori
<br />Oct 1- Nov 15 2,400/1,800/1,300 whooping crane, waterfowl
<br />Nov 16 - Dec 31 1,000/1,000/601) fish community, bald eagle
<br />Jan 1- Jan 31 1,000/1,000/600 fish community, bald eagle
<br />Feb 1- Feb 15 1,800/1,800/1,200 sandhill crane, waterfowl, fish community, bald ea,gle
<br />Feb 16 Mazch 15 250
<br />350/2
<br />3
<br />350/3 Sustaining processes of the nver.:and riparian we4F?nd
<br /> ,
<br />,
<br />, systems such as ice-scouring for channel mauiten4ice, "-
<br />. sediment supply; sandbar formadon; nutrient cycl'vxg,
<br /> aiid groundwater recharge to sriniulate biological;acttvity:a
<br /> in wet meadows.
<br />March 16-March 22 1,800/1,800/1,200 sandhill crane, waterfowl, fish community, bald eagle
<br />March 23 - May 10* 2,400/2,400/1,700 whooping crane, fish community, piping plover, least
<br /> tern, sandhill crane
<br />.,i 1. - .
<br />May ?l `June 30* ? . . .
<br />numing
<br />10-year ' - -. . . . .... . ) Ji -
<br />The principal affected resoureqs are ?ver and ?pa;1an 7 .
<br /> ,
<br />average of 30 day ' wetland processes such as maintquung ghapn?l
<br /> ,
<br />for :
<br />exceedance rnoiphology; sediment supply;
<br />
<br />? 1 .Y`? 3 t ,
<br />' "
<br />and 5-day
<br />400 cfs
<br />3
<br />'•
<br />Wl,
<br />nutrient cycling; backwater habitats, grouudwatexr?` ;,
<br />,
<br /> ,
<br />,
<br />exceedance of, '
<br />'?a
<br />? ' ?
<br />recharge; and behavioral cues for fiah spavvning? ?..
<br />, . 8,300-10,500 efs , r
<br />i
<br />reproduction, movement, and redistnb?tio», K
<br />r ? '?s s1 s-.ti _, . - . . ?i
<br />. .. --. , rk.•. r;
<br />t ? .? t.?? y°,'- ?'tf - e .r..
<br /> ,
<br />May 11 - Sept 15* 1,200/1,200/800 fish community, least tern
<br />Sept 16 - Sept 30 1,000/1,000/601) fish community
<br />Carry-Over N/A Use of EA water from one water year to the next for
<br /> beneficial u oses as described above.
<br />* During May 1- June 30, high priority pulse flow requirements overlie the flows for species-specil:ic physical aquaric
<br />habitat. May and June recovery flow targets are designed to capture natural variability: a 10-year running average with a
<br />30-consecutive-day exceedance of 3,400 cfs, and a 5-consecutive-day peak flow exceedance of 8,300.•10,500 cfs (see **)
<br />(Within this broad goal there are further recommendations that certain flow levels be achieved with sfiecific frequencies
<br />(see Bowman and Carlson et al. 1994) ).
<br />** The 5-day peak flow with ramped rate of rise and decline may occur in eidier February-March or ]vlay-June.
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