WSP01755

• File Number: 8210.140.20.A
• Description: Colorado River - Colo River Basin - Orgs/Entities - CRBSF - California - Colo River Board of Calif
• State: CA
• Date: 7/11/2000
• Author: Gerald Zimmerman
• Title: Executive Directors Monthly Report to the Colorado River Board of California
• Water Supply Pro - Doc Type: Report/Study

'I

00234(1

. .
EXECUTIVE DIRECTOR'S MONTHLY REPORT
TO THE
COLORADO RIVER BOARD OF CALIFORNIA

4

July 11, 2000

ADMINISTRATION

Board Retreat

The Board's retreat is scheduled to begin at 2:00 p,m. after the Board meeting, In a separate retreat
folder, I have included the agenda and other material that will be used during the meeting.

Board Meetinl:!

I have included in the Board folder, under Tab 2, a revised meeting schedule with shows that the
August Board meeting has been moved to the 23'" of the month and will be held in the Board Meeting
Room of the San Diego County Water Authority facilities.

PROTECTION OF EXISTING RIGHTS

Colorado River Water Report

During May 2000, storage in the major Upper Basin reservoirs increased by 551 ,000 acre-feet and
storage in the Lower Basin reservoirs decreased by 99,000 acre-feet. Total System active storage as of the
end of May was 53,149 million acre-feet (maf) or 89 percent of capacity, which is 0.404 mafless than one
year ago.

June releases from Hoover, Davis, and Parker Dams averaged 16,200, 16,440 and 13,280 cubic feet
per second (cfs), respectively. Planned releases from those three dams for the month of July 2000 are
15,470, 15,580 and 13,090 cfs, respectively, TheJuly releases represent those needed to meet downstream
water requirements.

The July 5, 2000 forecast of April through July 2000 unregulated inflow into Lake Powell is 4,600
maf, which is 59 percent of the 30-year average for the period 1961-1990, The forecast of unregulated
inflow into Lake Powell for the 1999-00 water year is 7,896 maf, or 67 percent of the 30-year average,

The Lower Division states' estimated consumptive use of Colorado River water for calendar year
2000, as estimated by Board staff, totals 8,460 maf and is projected as follows: Arizona, 2.853 maf;
California, 5.336 maf; and Nevada, 0.271 maf. Estimated additional unmeasured return flow credits of
0,244 maf would reduce the total amount to 8,216 maf, For calendar year 2000, the Central Arizona
Project (CAP) is projected to divert 1.378 maf, of which 292,000 acre-feet is to be credited to the Arizona
Water Bank, and The Metropolitan Water District of Southern California (MWD) is projected to divert
1.305 maf.

The preliminary July 5, 2000 estimate of2000 end-of-year California agricultural consumptive use
of Colorado River water under the first three priorities and sixth priority of the 1931 California Seven
Party Agreement is 3.972 maf. This estimate is based on the collective use through May 2000 by the Palo