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<br />ANNUAL OPERATING PLAN FROM FEBRUARY 1 THROUGH SEPTEMBER 30 <br /> <br />" <br /> <br />Most Probable Inflow Forecast <br /> <br />Green Mountain Reservoir <br /> <br />Turbine releases for replacement, bypass of inflow, power, and reservoir regulation will <br />approximate 34G ft'/s during February and March. If most probable runoff conditions <br />develop, releases will be increased to 36e ft'/s during April to achieve the desired storage <br />target of65,089 acre-feet at the end of April. <br /> <br />As the reservoir fills during the May-July runoff period, releases will be adjusted to achieve <br />a fill without spill during the early part of July. Ato,t~~"J;~e&" <br />Mdili'''-~~~in' ....ci. ....ij::tIi~I\.~_ <br />.,'~~~ ."~"":d,,,,,~, " par:til pa;t~",,,,_,"__ ~'_-)'"li~',.....:<-_"",. - _ '>C'.__".,,- ->J;i. <br />"nlJ;,'.~~'t!l'l':'UI~ ii:dlre\r5'Nifii!!lfl\!iliil~l!'';~~~~;~ <br />red:~~;,-rriinualiIevels beforeand'ilfier.:tIie;~!lb~1,'A-'-"'t~!'!!II~iJil!hfiig;m:.. <br />enban~allifuflows will bepassedthrougll.tfie,res!'lt"uit:fEm:ilPP@ilin~ <br />day peridtB With normal inflow and near-average releases for downstream water users during <br />August and September, storage is projected to be about 135,080 acre-feet by the end of <br />September. <br /> <br />With most probable runoff conditions, Denver and Colorado Springs' Blue River depletions <br />are projected to be about 48,2eO acre-feet during the February-September period. These <br />depletions would cause about &:4 gigawatt-hours of power interference at Green Mountain <br />Powerplant. <br /> <br />Willow Creek Reservoir <br /> <br />Under the most probable conditions, Willow Creek Reservoir will fill to about 10,000 acre- <br />feet by the end of Jtml\. The minimum required releases of7 Wls to the river during February, <br />March, and April, 24 Wls during May, and 44 Wls during June will be maintained. A bypass <br />release through the outlet works of excess water from April through July will be initiated of <br />Lake Granby is near capacity and to prevent pumped water from Willow Creek from being <br />spilled at Lake Granby. HDm;~~.S!!i~_!!1!:~~~~tIie;~"",~~~~R!~._ <br />ope.."!!!i!!!'~~~"""":;~~ During April through September, <br />approximately U,298 acre-feet will be pumped to Lake Granby. Willow Creek storage will <br />approximate 9;900 acre-feet at the end of the water year. <br /> <br />Lake Granby <br /> <br />Lake Granby storage will be lowered to 392,888 acre-feet by the end of March. With most <br />probable inflow, storage is expected to be 53J,2eO acre-feet by the end of July, which is_ <br />the normal maximum operating level of536,100 acre-feet (elevation 8279.50 feet). This is <br /> <br />filename: CBTA0P98.DFT <br /> <br />21 <br /> <br />Pn:liminary Working DnlftJuly 8, 1999 <br />