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<br />Operation Volume to release at Blue Mesa <br /> <br />BMRelOp = BMRelTot - RmBC - RmGT + RmSI <br /> <br />where: <br />BMRelOp = Blue Mesa operation release (Release in excess of demands) F6re.ec.slal (..c.,j1 r~j,l./~ <br />RmBC = Remaining volume of water needed to meet Black Canyon needs - a e- 1-,._+ f I(~s. <br />RmGT = Remaining Gunnison Tunnel needs <br />________ _ n _ ~_~~:_Re1l1a~ngside inflows to Morrow Point and Crystal OJ' &,.t".,......,. c. rt") -! c!.,. rs.{_l. <br /> <br />Operation volume to be released at Crystal is: <br />CryRelOp = BMRelOp + RmSI <br /> <br />Dividing Crystal operation volume by days remaining in the forecast period determines the average <br />operation flow to released at Crystal until it is recomputed. This release is currently computed on the 1st, <br />8th, 15th, and 22nd of each month. One exception to this computation occurs in June and July. An estimate <br />of the average operation release for the fall (Aug - Dee) period is made based on average inflows and <br />demands and the current Blue Mesa content. If the fall estimate is larger than current spring estimate, the <br />fall estimate is used during June and July. <br /> <br />Blue Mesa daily release is then set to be "Canyon Requirement + Gunnison Tunnel Demand _ Side Inflow <br />to Crystal and Morrow Point + Crystal Operation Release". Blue Mesa daily release may be reset by other <br />constraints. <br /> <br />1. If desired Blue Mesa release results in Blue Mesa exceeding its maximum content, release is <br />increased. <br />2. Blue Mesa release is reduced if flow at Delta exceeded 14,000 cfs on the previous day. tte 15.% ..(f~ <br />3. Blue Mesa release adjusted if ramping rates (either up or down) in the canyon are exceeded. d.:-....~7~:;;, <br />4. Blue Mesa release are increased if the minimum spawning flow, minimum incubation flow, oro r loco ""..j <br />the minimum canyon flow of300 cfs are not met. (can occur due to tunnel diversion changing) <br />5. During Ian-Mar releases are limited so that all releases at Crystal go through the powerplant. <br />6. Blue Mesa release will be increased, subject to downstream ramping criteria, if with the current <br />rate of fill, Blue Mesa would have less than 2 ft of storage space remaining at the end of 7 days. Release is <br />the minimum of 6000 cfs or the release which would result in having 2 ft of storage space remaining. <br /> <br />We. <br /> <br />cu~ -I-L <br /> <br />[0 <br />Cil <br />@) <br /> <br />f!:> /Y} .fe-rye+ e Ie Vo.{~ tr eaJ Jt16..f~ <br /> <br />ded: it> rnk c;:5uV'e... 7::nnd d-eWl~S M4iJ. <br />check:- c:S tk ~-au..J.s; <br />""' ek.e-/:;... ~U~/I~ ?? <br /> <br />J -. ~ <br />r ~)/J &v~"'r'__I(~. (/l1c,lch ~co?D <br /> <br />Ci) <br /> <br />~ <br /> <br />;=:;. ,. e c o..S -I---- ~ ..s -/0<- i fi7 -I ~., ... "0#.' ;(, ~ ~ k,~.a>... ~ <br />