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<br />lAKE HAVASU
<br />(COLORADO RIVER)
<br />
<br />Wate[' Yea[' 1994
<br />
<br />At the beginning of water year 1994, the water level of Lake
<br />Havasu, impounded by Parker Dam, was at an elevation of
<br />about 136.1 meters (446.4 feet) with an active storage of
<br />approximately 678 million cubic meters (550,000 acre-feet).
<br />
<br />During the water year, approximately 8,567 million cubic
<br />meters (6,945,000 acre-feet) were released at Parker Dam,
<br />all of which passed through the turbines for power
<br />produCl:ion. In addition to the releases from Parker Dam,
<br />approximately 1,601 million cubic meters (1,298,000 acre-
<br />feet) were diverted from Lake Havasu by the Metropolitan
<br />Water Dislrict of Southern California. Diversions from Lake
<br />Havasu for the Central Arizooa Project were 945 million
<br />cubic meters (766,000 acre-feet) during the water year.
<br />
<br />Storage space in the top 3 meters (10 feet) of Lake Havasu
<br />which translates into 222 million cubic meters (180,000 acre-
<br />feet) is reserved by the United States for control of floods
<br />and other uses, including river regulation.
<br />
<br />Central Arizona ProJect. New Waddell Dam Operations
<br />
<br />Central Arizona Project (CAP) diversions have steadily
<br />increased over the last three years. Ongoing economic
<br />problems by CAP agricultural users have continuously
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<br />reduced irrigation use, but special water pricing for 493
<br />million cubic meters (400,000 acre-feet) of CAP water
<br />stimulated more irrigation deliveries. Total diversions from
<br />the Colorado River, for the water year were 939 million
<br />cubic meters (761,500 acre-feet).
<br />
<br />Diversions from the Colorado River were used both for
<br />consum ptive use and satisfying Lake Pleasant regulatory
<br />storage requirements. By April 1994, Lake Pleasant was
<br />filled to elevation 5185 meters (1,701 feet) which officially
<br />completed the fllst fill for the dam structure.
<br />Pump/Generator test were conducted and all units were
<br />commissioned in June 1994. This marked the first season
<br />that Lake Pleasant became a regulatory storage reservoir
<br />with significant releases for CAP aqueduct deliveries. From
<br />October 1993, to June 1994, an additional 429 million cubic
<br />meters (348,000 acre-feet) of water was diverted from the
<br />Colorado River and pumped into Lake Pleasant. During a
<br />nonnal year of CAP operation, the planned Lake Pleasant
<br />reservoir water elevation willlluctuate between a maximum
<br />of 512.1 meters (1,680 feet) and a minimum of 493.8 meters
<br />(1,620 feet). The reservoir level will rise, mid-October
<br />through May, while Colorado River water is pumped into the
<br />Lake. Conversely, the reservoir level will drop, June to mid-
<br />October, while water is released into the CAP and Maricopa
<br />Water Dislrict systems for customer deliveries.
<br />
<br />L\KE HAVASU
<br />
<br />R.ese1'VOir
<br />
<br />Sto",&," Capacity
<br />Normal Pool Elevation
<br />Minimum Power Pool
<br />Surface Area, full
<br />Rue"",;" Length, full
<br />
<br />764 million cubic: metc.n (619,400 acre-feet)
<br />137,2 mete" (450.0 feel)
<br />134,1 mcle" (440,0 feet)
<br />8,256 hectare< (20,400 ac:rca)
<br />S7 kilomctcl'l (3S miles)
<br />
<br />Powerolant
<br />
<br />Number or Units
<br />Total Capacity
<br />
<br />4
<br />120,000 F;!N
<br />
<br />19
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