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<br />LAKE HAVASU <br />(COLORADO RIVER) <br /> <br /> <br />Water Year 1990 <br /> <br />A t the beginning of water year 1990, the water le",l of Lake <br />H avasu. impounded by Parker Dam, 'W8S at an elevation of <br />about 447 feet with an acti", storage ofapproximately5OO,OOO <br />acre.feet. During October and November 1989, the reservoir <br />J1uctuated between elevations 446 feel and 447 feet. By March <br />1990, the reservoir was at an approximate elevation of445 feet <br />to provide vacant space for runoff from the drainage area <br />between Davis and Parker Dams. The water level was then <br />raised to an elevation of450 feet by the middle of May with an <br />active storage of about 610,()(X) acre-feet. At the end of the <br />water year, Lake Hawsu was at an elevation ofabaut 447 fect <br />with an active storage of 562.000 acre-feet. <br /> <br />During the w.:\ter year, apptoximately6.994,{)()) acre-feet 'lrNere <br />released at Parker Dam, all of which passed through the <br /> <br />ACTUAL RELEASES 1990 <br /> <br />THOUS,AND ACRE-FEET <br />1000 <br /> <br /> .--' <br /> ./' "- <br /> "- <br /> / <br />"- <br />'\ / <br /> -. <br /> <br />aoo <br /> <br />600 <br /> <br />400 <br /> <br />200 <br /> <br />o <br />ONDJFMAMJJAS <br /> <br />turbines for power production. In addition to the releases <br />from Parker Dam, approximately 1,240,000 acre-feet were <br />di",rted from Lake Havasu by The Metropolitan Water <br />District of Southern California. Diversions from Lake Havnsu <br />for the Central Arizona Project \\'ere 779,orIJacre-feet during <br />the water year. <br /> <br />Space in the top 10 feet of Lake Havasu (about 180,000 <br />acre-feet) is reser",d by the United States for control of floods <br />and other uses, including river regulation. Normally, only <br />about the lop 4 fecl, or 77,CXXJ acre-feet of space, have been <br />used for this purpose since the Alamo Reservoir on the Bill <br />Williams River has been in operation. <br /> <br />LAKE HAVASU <br /> <br />Reservoir <br /> <br />Acre-feel <br /> <br />ElevatiQn, feet <br /> <br />Maximum Storage <br />Rated Head <br />Minimum Power <br />Surface Area, full <br />Reser",ir Length, full <br /> <br />619,400 <br />619,400 <br />439,400 <br /> <br />450 <br />450 <br />440 <br />20,400 Acres <br />35 Miles <br /> <br />Powcrplant <br /> <br />Number of Units <br />Total Capacity <br /> <br />4 <br />120,000 KW <br /> <br />19 <br />