Annual Operating Plan For Colorado River Reservoirs 2004

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January 7, 2004 20 (11,262 mcm) for downstream water use requirements. Calendar year 2003 total release is projected to be 9.18 maf (11,324 mcm). N For water year 2004, Davis Dam is expected to release 9.24 maf (11,398 mcm). For the 2004 calendar year, releases are projected to be 9.28 maf (11,447 mcm). The water level in Lake Mohave will be regulated between an elevation of 630 feet (192.02 meters) and 645 feet (196.06 meters). Lake Havasu started water y ear 2003 at an elevation of 447.20 feet (136.31 meters), with 0.565 maf (697 mcm) in storage. The water level of Lake Havasu was regulated as needed between elevation ' 445 feet (135.6 meters) and 449 feet (136.9 meters). During the water year, 6.84 maf (8,437 mcm) was released from Parker Dam. Calendar year 2003 total release is projected to be 6.86 maf (8,462 mcm). Diversions from Lake Havasu during calendar year 2003 by the Central Arizona Project ' (CAP) and the Metropolitan Water District (MWD) are projected to be 1.69 maf (2,085 mcm) and 0.610 maf (752 mcm), respectively. ' For water year 2004, Parker Dam is expected to release 6.86 maf (8,462 mcm). For the 2004 calendar year, releases are projected to also be 6.86 maf (8,462 mcm). Diversions from Lake Havasu ' in calendar year 2004 by MWD and CAP are expected to be 0.853 maf (1,0952 mcm) and 1.6 maf (1,974 mcm), respectively. ' Mohave and Havasu Reservoirs are scheduled to be drawn down in the late summer and winter months to provide storage space for local storm runoff and will be filled in the spring to meet higher summer water needs. This drawdown will also correspond with maintenance at both Davis and ' Parker powerplants which is scheduled for September through February. During 2004, Lake Mohave will continue to be operated under the constraints as described in the Biological and Conference Opinion on Lower Colorado River Operations and Maintenance. Reclamation, as provided in the ' Interim Surplus Guidelines Record of Decision, will continue these existing operations in Lake Mohave that benefit native fish through the effective period of the Interim Surplus Guidelines and ' will explore additional ways to provide benefits to native fish. The normal filling pattern of these two reservoirs coincides well with the fishery spawning period. Since lake elevations will be typical of previous years, normal conditions are expected for boating and other recreational uses. ' Reclamation is the lead agency in the Native Fish Work Group, a multiagency group of scientists attempting to augment the ageing stock of the endangered razorback sucker in Lake Mohave. Larval razorback suckers are captured by hand in and around spawning areas in late winter and early spring for rearing at Willow Beach Fish Hatchery below Hoover Dam. The following year, one year old razorback suckers are placed into predator -free, lake -side backwaters for rearing through the spring ' and summer. When the lake is normally drawn down during the fall, these fish are harvested from these rearing areas and then released to the lake. The razorback suckers grow very quickly, usually exceeding ten inches in length by September. I�