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<br />Lake Havasu (Colorado River) <br /> <br /> <br />Porker Dam and surrounding oreo. <br /> <br />Water Year 1984 <br /> <br />At the beginning of water year 1984, the <br />waler level of lake Havasu. impounded by <br />Parker Dam, was at elevation 446 feet with <br />an active storage of approximately 541 ,(x)() <br />acre-feet. The reservoir was drawn down <br />to approximately elevation 445 feet, with <br />on active storage of about 529,000 acre.feet <br />in early January to provide vacant space <br />for runoff from the drainage area between <br />Davis and Parker Dams. The water level <br />was then raised to an approximate" <br />elevation of 4AB feel by the end of July. <br />with on active storage of about 574,QC() <br />acre-feet. - At the end of the water-year, - <br />lake HavQ!'u was at on elevation oi 448 <br />feet with an active storage of 585,000 <br />acre. feet. <br /> <br />During the water year, approximately <br />21,124,000 acre-feet were released at <br />Parker Dam, of which approximately <br />15,801,000 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 Dam, <br />approximately 1,196,000 acre-feet were <br />diverted from Lake Havasu by The <br />Metropolitan Water District. <br /> <br />00 <br /> <br /> <br />Hohokam archaeological site, Arizona. <br /> <br />Space in the top 10 feet of Lake Havasu <br />(about 180,000 acre-feet) is reserved by the <br />United States for control of floods and <br />other uses, including river regulation. <br />Normally, only about the top 4 feet, or <br />77,(X)O acre.feet of space, have been used <br />for this purpose since the Alamo Reservoir <br />on the Bill Williams River has been in <br />operation. <br /> <br />Water Year 1985 <br /> <br />lake Hovosu is scheduled at the highest <br />levels consistent with the requirements for <br />maintaining reservoir regulation space. <br />-The yearly-low -elevation of app-roxiin-ately. <br />446 feet is scheduled for the October <br />. through February high flood hazard <br />period. The yearly high of about 450 feet <br />is scheduled for the low flood hazard <br />months of May and June. During water <br />year 1985, a total of approximately 13.3 <br />million acre.feet is scheduled to be <br />released from Lake Ha'iosu to meet all <br />downstream and flood control <br />requirements. Of that total, approximately <br />11.5 million acre-feet are scheduled to pass <br />through the Parker powerplant. <br /> <br />Lake HavGIU Active Storage.... <br /> <br />Chart 8 <br /> <br />Reservoir <br /> <br />Acre.Feet <br /> <br />EI. (Ft.) <br /> <br />450.0 <br />450.0 <br />440.0 <br /> <br />Maximum Storage <br />Rated Head <br />Minimum Power <br />Surfoce Area (Full) <br />Reservoir Length <br />(Full) <br />Powerplant <br />Number of Units <br />Total Capacity <br /> <br />619.400 <br />619.400 <br />439.400 <br />20,400 Acres <br /> <br />35 Miles <br /> <br />4 <br />120,000 Kilowatts <br /> <br />'O~, not include 28.60:1 o<:,e.I_, 01 deod ,rorg~ below 400.0 1..,. <br />