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<br />20 <br /> <br />. <br />I <br />I <br />.' <br />I <br />I <br />I <br />I <br />.' <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />(;) <br />Q <br />"""' <br />-.1 <br />-.1 <br />e...J <br /> <br />Reasonable Minimum Inflow Forecast <br /> <br />Colorado-Big Thompson Project <br /> <br />Green Mountain Reservoir <br /> <br />If ...easonab1e minimum inflow is fo...ecasted on February 1, ...e1eases from <br />the ...ese...voi... for bypass of inflow, powe..., replacement, and reservoi... <br />regulation will be scheduled in Ma...ch to bring sto...age to about <br />75,UOO ac...e-feet by Ap...i1 30. During May and June, releases will be held <br />at 60 ft3js to satisfy downstream water rights on the Blue River. With <br />...easonable minimum ...unoff, it is estimated that Co10...ado Springs and Denve...' <br />will deplete the Blue River by about 69,500 acre-feet during the <br />April-July period. The depletions will cause about 14 gigawatt-hours of <br />power interference at Green Mounta i n Powe...p 1 ant. Re 1 eases dur ing Ju 1y <br />through Septembe... wi 11 be made to bypass inflow, for replacement of <br />P...oject depletions, and fo... natural flow shortage to west slope i...rigation <br />and domes tic use...s. Carryover storage at the end of the wate... yea... <br />will be 28,400 ac...e-feet below the 30-year ave...age at 100,000 acre-feet. <br /> <br />Willow C...eek Reservoir <br /> <br />If reasonable minimum runoff develops, Willow Creek Reservoi... will fill <br />to the conten t of B,300 acre-feet by the end of March. Thi s is <br />1,900 acre-feet below maximum ...eservoir storage. All wate... in excess of <br />downst...eam requi ...ements wi 11 be pumped to Lake G...anby, tota 1 i ng <br />20,300 ac...e-feet during the Ap...il-July period. With minimum ...equi...ed <br />re 1 eases to the ri ver, carryover storage of about 9,000 acre-feet wi 11 <br />remain at the end of the wate... year. <br /> <br />Lake Granby <br /> <br />Storage in Lake Granby will be lowered to 127,700 ac...e-feet by the,end <br />of Ma...ch. With minimum inflow, Lake Granby will refill to a maximum of <br />182,400 ac...e-feet by the end of June, which is 357,400 ac...e-feet below <br />max imum s to...age capac ity. Adams Tunne 1 divers ions du...i ng February <br />through September will be above average to provide adequate i......igation <br />de 1 i veri es in the Proj ect area. Septembe... 30 car-ryover storage of <br />120,200 acre-feet would be only 29 percent of normal, and <br />46,UOO acre-feet above dead sto...age. <br /> <br />East Slope/Co10...ado-Big Thompson P...oject <br /> <br />With reasonable minimum inflow forecast on February 1, an above-normal <br />supplemental i...rigation demand equal to 333,200 acre-feet can be <br />expected on the Project. Divers ions th...ough Adams Tunnel wi 11 be at <br />capacity of 550 ft3/s f...om Feb...ua...y 1 through Ma...ch 20. This will bring <br />Ca...ter Lake storage to a total of 95,100 acre-feet, which is 85 pe...cent <br />of the total allowable sto...age capacity in Ca...ter Lake. Adams Tunnel <br />and Olympus Tunnel diversions will be minimized f...om March 21 through <br />Ap...i 1 28 to accommodate the Pole Hill Canal, Afterbay, and Pmlerp1ant <br />ma i ntenance schedu 1 ed duri ng th is per i od. Ho...setooth Reservoi r will <br />...each a maximum storage of 135,100 acre-feet by the end of June, which <br />is 21,60U acre-feet below the reservoir capacity. <br />