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<br />Lower Basin Reservoirs <br />Lake Mead [Colorado River] <br /> <br /> <br />Hoover Dam In earlier years. <br /> <br />Walar Vaar 1982 <br />AI Ihe beginning of waler year 1982, Lake <br />Mead, Impounded by Hoover Dam, had a <br />water surface elevatIon 01 1193 feet and an <br />aclive storaga of 21 ,870,000 acre-feel. During <br />the water year. releases were made to meet <br />downstream water use reQuirements In the <br />United States and Mexico. programmed levels <br />01 Lakes Mohave and Hsvasu I and transIt <br />losses which Include river and resarvolr <br />evaporation, uses by phreatophytes, changes <br />In bank storage, unmeasured Inflows, and <br />diversions. <br /> <br />The lotal releaso from Loka Mead Ihrough <br />Hoover Dam during water year 1982 was an <br />estlmaled 7,377,000 acre-feel. At the end 01 <br />the water year, Lake Mead had a water <br />surface elevation of 1199 fset and an active <br />sloraga 0122,770,000 acre-feet which retlecI <br />an Increase In storage during the water year of <br />900,000 acre-feel, On Seplambar 30, 1982. <br />Ihe aclivo storage of Lake Maad was 240,000 <br />acre-teet le98 than the active storage In Lake <br />Powell. <br /> <br />18 <br /> <br /> <br />Water Va.r 1 983 <br />During the 1983 ...aler year, Ihe Lake Mead <br />water Ie_ells scheduled 10 rise to 1213 feet al <br />the end of February 1983. then be drawn down <br />to a low elevallon of 1207 feel al Ihe end of <br />June 1983, AI that lovel, Ihe lake will have an <br />average actIve storage of about 23.9 million <br />acre-feet. During water year 1983, a total of <br />aboul7,5 million acro-feet Is scheduled 10 be <br />released from Lake Mead. <br /> <br />Laka Mead Active Storage" <br />Reservoir (Acre'Feel) <br /> <br />Maximum Storage <br />Rated Head <br />Minimum Po....r <br />Surface Area (Full) <br />Reservoir Length <br />(Full) <br /> <br />Power Plan I <br />Number of Unlls <br />Total Capacity <br /> <br />Chart 6 <br />EI. <br />(Fl.) <br /> <br />27,377,000 1229 <br />13,653,000 1 123 <br />10,024,000 1083 <br />162,700 Acres <br /> <br />115 Miles <br /> <br />'does nollnclude 2,318,000 acre-leel 01 dead <br />storage below 895 leel <br /> <br />17 <br />1,344,800 Kilowafts <br />