WSP02605 - Laserfiche WebLink

Home Browse Search

. . \ "\" \ April releases from Hoover, Davis, and Parker Dams averaged 19,120, 18,050 and 13,450 cubic feet per second (cfs), respectively. Planned releases from those three dams for the month of May 2003 are 18,300, 17,300, and 13,100 cfs, respectively. The March releases represent those needed to meet downstream water requirements including those caused by reduced operation of Senator Wash reservoir. The final May 5, 2003, projected April through July 2003 unregulated inflow into Lake Powell was 4.500 maf, which is 57 percent of the 30-year average for the period 1961-1990. The final Yw 5,2003, proiected unregulated inflow into Lake Powell for the 2003-03 water vear was2.201 maf, or 60 percent of the 10-vear average. The Lower Division States' consumptive use of Colorado River water for calendar year 2003, as calculated by Board staff, totals 7.755 maf and is distributed as follows: Arizona, 2.916 maf; California, 4573 maf; and Nevada, 0.266 maf. Unmeasured return flow credits of 0.264 mafwould reduce the total amount of projected consumptive use to 7.491 maf. For calendar year 2003, it is estimated the Central Arizona Project (CAP) will divert 1.588 maf, of which 0.296 mafis to be credited to the Arizona Water Banle The Metropolitan Water District of Southern California (MWD) is projected to divert 0.687 maf. The preliminary end-of-year estimate for 2003 California agricultural consumptive use of Colorado River water under the first three priorities and the sixth priority ofthe 1931 California Seven Party Agreement is 3.827 maf. This estimate is based on the collective use through February 2003 by the Palo Verde Irrigation District, the Yuma Project Reservation Division (VPRD), the Imperial Irrigation District, and the Coachella Valley Water District Figure 1, found at the end of this report, depicts the historic projected end-of-year agricultural use for the year. Colorado River Operations 2004 Annual Operating Plan (2004 AOP) The first consultation meeting associated with development ofthe 2004 Annual Operating Plan (AOP) has been scheduled for June 3, 2003, in Las Vegas, Nevada. The main subjects of discussion in addition to beginning development of the 2004 AOP relates to the sixth review of the Long-Range Operating Criteria and the status ofthc 602(a) Storage Process. Calendar Year 2003 Water Use Included in your Board folder is a copy of Reclamation's revised hand-out entitled, "Lower Colorado River Operations - Normal Year versus Full Domestic Surplus." These tables and accompanying graphs provide a side-by-side comparison of Colorado River operations for Calendar Year 2003 and Water Year 2003 under a normal or surplus condition. As you are aware, this year Reclamation is operating the Lower Colorado River under a normal condition. With a normal condition, 7.5 maf of water are being delivered to the Colorado River mainstream users in the Lower Basin. Under a full domestic surplus, the total mainstream water use in the Lower 2