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<br />rl"t03,.e <br />th...':'" JQ <br /> <br />Lake Havasu started water year 2004 at an elevation of 447.05 feet (136.26 meters) with 0,562 maf <br />(693 mcm) in storage. The water level of Lake Havasu was regulated between elevation 445 feet <br />(135.6 meters) and 449 feet (136.9 meters). During the water year, 6.80 maf(8,388 mcm) <br />was released from Parker Dam. Calendar year 2004 total release is projected to be 6.86 maf <br />(8,462 mcm). Diversions from Lake Havasu during calendar year 2004 by the Central Arizona <br />Project (CAP) and the Metropolitan Water District (MWD) are projected to be 1.60 maf(1,974 <br />mcm) and 0.591 maf(729 mcm), respectively. <br /> <br />For water year 2005, Parker Dam is expected to release 6.94 maf (8,560 mcm). For the 2005 <br />calendar year, releases are projected to be 6,93 maf(8,548 mcm). Diversions from Lake Havasu in <br />calendar year 2005 by the CAP and the MWD are expected to be 1.6 maf(I,974 mcm) and 0.512 <br />maf (632 mcm), respectively, <br /> <br />Mohave and Havasu Reservoirs are scheduled to be drawn down in the late summer and fall months <br />to provide storage space for local storm runoff and will be filled in the winter to meet higher summer <br />water needs. This drawdown will also correspond with normal maintenance at both Davis and <br />Parker powerplants which is scheduled for September through February. <br /> <br />At Parker Dam, a major overhaul of Unit No, 3 is scheduled for October 2004 through March 2005, <br />This overhaul will include replacing the turbine, re-winding the generator, replacing the excitation <br />system with a new solid state system, and installing solid state relaying for the generator and <br />transformers. Although the capacity will not be increased, the unit output should be more efficient, <br />with less cavitation and reduced outages. After Unit No.3 is rehabilitated, operating criteria will be <br />analyzed and shared with the funding board customers who will decide whether to continue with the <br />other three units for rehabilitation, <br /> <br />During 2005, Lake Mohave will continue to be operated under the constraints as described in the <br />Biological and Conference Opinion on Lower Colorado River Operations and Maintenance, <br />Reclamation, as provided in the Interim Surplus Guidelines ROD, will continue these existing <br />operations in Lake Mohave that benefit native fish through the effective period of the Interim Surplus <br />Guidelines and will explore additional ways to provide benefits to native fish. The normal filling <br />pattern of these two reservoirs coincides well with the fishery spawning period. Since lake <br />elevations will be typical of previous years, normal conditions are expected for boating and other <br />recreational uses, <br /> <br />Reclamation is the lead agency in the Native Fish Work Group, a multi-agency group of scientists <br />attempting to augment the ageing stock of the endangered razorback sucker in Lake Mohave. Larval <br />razorback suckers are captured by hand in and around spawning areas in late winter and early spring <br />for rearing at Willow Beach Fish Hatchery below Hoover Dam, The following year, I-year old <br />razorback suckers are placed into predator- free, lake-side backwaters for rearing through the spring <br />and summer. When the lake is normally drawn down during August through October, these fish are <br />harvested from these rearing areas and then released to the lake. The razorback suckers grow very <br />quickly, usually exceeding 10 inches in length by September. <br /> <br />19 <br />