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<br />. <br /> <br />. <br /> <br />4 <br /> <br />November 2002 are 10,900,9,200, and 6,800 cfs, respectively. The November releases represent <br />those needed to meet downstream water requirements including those caused by reduced operation <br />of Senator Wash reservoir. <br /> <br />The observed April through July 2002 unregulated inflow into Lake Powell was 1.115 maf, <br />which is 14 percent of the 30-year average for the period 196].] 990. The final October 3], 2002, <br />observed unregulated inflow into Lake Powell for the 200].02 water year was 3.058 maf, or <br />25 percent of the 30-year average. <br /> <br />The Lower Division States' estimated consumptive use of Colorado River water for calendar <br />year 2002, as estimated by Board staff, totals 8.795 maf and is projected as follows: Arizona, 3.123 <br />maf; California, 5.36] maf; and Nevada, 0.311 maf. Unmeasured return flow credits of 0.255 maf <br />would reduce the total amount of projected consumptive use to 8.540 maf. All three Lower Basin <br />states increased their consumptive use of mainstream water due to a drought condition. During year <br />2002, Arizona, on behalf of the State of Nevada, planned to bank a total of 40,000 acre-feet of <br />Colorado River mainstream water in the Arizona Water Bank. <br /> <br />For calendar year 2002, it is estimated the Central Arizona Project (CAP) will divert <br />1.70 I maf, of which 0.343 maf is to be credited to the Arizona Water Bank, and The Metropolitan <br />Water District of Southern California (MWD) will divert] .247 maf. <br /> <br />The preliminary November 2002 end-of-year California agricultural consumptive use of <br />Colorado River water under the first three priorities and the sixth priority of the 1931 California <br />Seven Party Agreement is 4.055 maf. This estimate is based on the collective use through September <br />2002 by the Palo Venle Inigation District, the Yuma Project Reservation Division (YPRD), lhe <br />Imperial Irrigation District, and the Coachella Valley Water District. Figure I, found at the end of <br />this report, depicts the historic projected end-of-year agricultural use for the year. <br /> <br />Colorado River Ooerations <br /> <br />2003 Annual Operating Plan <br /> <br />The Final 2003 Annual Operating Plan (AOP) for Colorado River System Reservoirs has <br />been prepared and transmitted to the Department of the Interior for review and approval. Changes <br />resulting from the September 19,2002, meeting in Las Vegas, Nevada, with stakeholders have been <br />incorporated in the Final AOP. I have included a copy of the Final AOP in the Board folder (Tab <br />5). for your information. A summary of the 2003 AOP findings include the following: <br /> <br />. <br /> <br />Minimum objective release criterion controls release from Glen Canyon Dam. Under the <br />most probable inflow scenario, releases from Glen Canyon Dam will total 8.23 maf; <br />Based upon the Interim Surplus Guidelines, the "full domestic surplus" will govern releases <br />from Lower Basin reservoirs. It is anticipated that approximately 660 kafwill be released <br />as surplus: <br />A "mid-year review," as specified in the Interim Surplus Guidelines, will be conducted by . <br />the Secretary of the Interior. The purpose of the review is to evaluate the Basin hydrology <br />and runoff conditions, as well as demand and use schedules; and <br /> <br />. <br /> <br />. <br /> <br />2 <br />