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<br />Lake Havasu (Colorado River) <br /> <br /> <br />Water Year 1985 <br />At the beginning of water year 1985, the <br />water level of Lake Havasu, impounded <br />by Parker Dam, was at elevation 448 feet <br />with an active storage of approximately <br />585.000 acre.feet. During October and <br />November 1984, the reservoir was drawn <br />down to approximately elevation 446 teet, <br />with an active storage of about 540,000 <br />acre.feet In early February 1985, the <br />reservOIr was al elevation 446 feet 10 <br />provide vacant space for runoff from the <br />drainage area between Davis and Parker <br />Dams. The water level was then raised to <br />an approximate elevation of 449 feet near <br />the end of May, with an active storage of <br />about 599,000 acre. feet. At the end ot the <br />water year, Lake Havasu was at an <br />elevation of about 446 feet with an active <br />storage of 540,000 acre-feet. <br /> <br />During the water year, approximately <br />17.701,000 acre.feet were released at <br />Parker Dam, of which approximately <br />14,944,000 acre-feet passed through the <br />turbines for power production. The total <br />release amount included releases from <br />Alamo Dam on the Bill Williams River. In <br />addition to the releases from Parker <br />Dam, approximately 1,260,000 acre.leet <br />were diverted from Lake Havasu by <br />MWD. Initial diverSions from Lake Havasu <br />for the Central Arizona Project (CAP) <br />were 23,000 acre.feet during the water <br />year. <br /> <br />Space in the top 10 feet of Lake Havasu <br />(about 180,000 acre.feet) is reseNed by <br />the United States for control of floods and <br />other uses, including river regulation. <br />Normally, only about the top 4 feet. or <br />77,000 acre.feet of space, have been <br />used tor thiS purpose since the Alamo <br />Reservoir on the Bill Williams River has <br />been in operation. <br /> <br />20 <br /> <br /> <br />Waler Year 1986 <br />Lake Havasu IS scheduled at the highest <br />levels consistent with the requirements <br />for maintaining reseNoir regulation <br />space. The yearly low elevation of <br />approximately 446 feet is scheduled for <br />the October through February high flood <br />hazard period. The yearly high of about <br />450 feet is scheduled for the low flood <br />hazard months of May and June. During <br />water year 1986, a total of approximately <br />10.9 million acre-feet is scheduled to be <br />released from Lake Havasu to meet all <br />downstream and flood control require. <br />ments. All of that amount is scheduled to <br />pass through the Parker Powerplant. <br /> <br />Lake Havasu Active Storage" Chart 8 <br />Reservoir Acre.Feet EI. (F.!l <br />Maximum Storage 619.400 450.0 <br />Rated Head 619.400 450.0 <br />Minimum Power 439.400 440.0 <br />Surface Area (Full) 20.400 Acres <br />Reservoir Length <br />(Full) 35 Miles <br />Powerplant <br />Number of Units 4 <br />Total Capacity 120,000 Kilowatts <br />. Dves no! ~clLde 28,600 acre-reel 01 dead storage belOw 400 00 'eel <br /> <br />