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<br />LAKE HAVASU <br />(COLORADO RIVER) <br /> <br /> <br />Water Year 1991 <br /> <br />At the beginning ofwaler year 1991, the walcr level of Lake <br />Havasu. itnpounded by Parker Dam, was at an elevation of <br />aboul447 feet with an active storage ofapproximalely 560,000 <br />acre-feet. During October and No~mber 1989, the reservoir <br />fluctuated between elevations 446 feet and 447 feel. ByMarch <br />1990, the reservoir was at an approximate elevation of 446 feet <br />to provide vacant space for runoff from the drainage area <br />bet\Veen Davis and Parker Dams. The water Ie~l was then <br />raised to an elevation of 450 feet by the middle of May with an <br />active storage of about 61O,00J acre-feet. Allh.e end of the <br />water year, Lake H avasu was at an elevation of 'about 447 feet <br />YJith an active storage of 556,000 acre-feet. <br /> <br />During the water year, approximate Iy 6,867,<XX> acre-feet were <br />released at Parker nam, all of which passed Ihrough the <br /> <br />ACTUAL RELEASES 1991 <br /> <br />THOUSAND ACRE-FEET <br />1000 <br /> <br /> --" <br /> / "- <br /> '\ <br />I'.. ........- <br /> p...-.; '-., / <br /> <br />aoo <br /> <br />aoo <br /> <br />'00 <br /> <br />200 <br /> <br />o <br />Oll'DJFMAMJJAS <br /> <br />turbines for pO'Wet production. In addition to the releases <br />from Parker Dam, approximately 1,253.<XX> acre-feet wcre <br />diverted from Lake Havasu by The Metropolitan Water <br />District of Southern California. Diversions from Lake Hawsu <br />for the Central Arizona Project were 473,000 acre-feet during <br />the water ~ar. <br /> <br />Space in the lop 10 feet of Lake Havasu (about 180,000 <br />acrc,feet) is reserved by the United Slalesfor control of floods <br />and olher uses, including river regulation. Normally, only <br />about the top 4 feet, or 77,fX)(J 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 - E leva lion, feel <br /> <br />Storage Capacity <br />Rated Head <br />Minimum Power <br />Surface Area, full <br />Reservoir 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 />Powerplant <br /> <br />Number of Units <br />Total Capacity <br /> <br />4 <br />120,000 KW <br /> <br />19 <br />