WSP03055

• File Number: 8282.600.40
• Description: Colorado River Annual Operations Reports
• Basin: Colorado Mainstem
• Date: 1/1/2002
• Author: USDOI/BOR
• Title: Colorado River Reservoir Operation Status Reports
• Water Supply Pro - Doc Type: Data

of about 1.259.000 acre-feet. To view the most current reservoir elevation, content. inflow and
release, click on: Reservoir Data. The basin snowpack on April 29, was 22 percent of normal for
the Animas River Basin. and 16 percent of normal for the upper San Juan River Basin. The
monthly precipitation average in the basin above Bluff for March was 40 percent of normal.

On April 3, 2002. the National Weather Service's River Forecast Center issued an inflow forecast
for Navajo Reservoir for the April through July runoff period. This forecast is projecting a
volume runoff into the reservoir of 210,000 acre-feet. down 110,000 acre-feet from just a month
ago. This volume of runoff represents only 26 percent of average for this time period.

A public meeting on Navajo Reservoir operations will be held on April 18,2002 at 1:00 pm in
Farmington, New Mexico. At this meeting, review of last Fall and Winter reservoir operations,
and plans for this Spring and Sununer 2002 operations will be discussed. These are open forum
discussions on the operation of Navajo Reservoir with many interested groups participating.
Anyone interested in the general operation of the reservoir is encouraged to attend. Please
contact Pat Page in Reclamation's Durango, Colorado Office at [phone] for information
about these meetings or the daily operation of Navajo Reservoir.

Glen Canyon Dam - Lake PoweU

Releases from Glen Canyon Dam in April. 2002 will average about 10,000 cfs with a total of
600,000 acre-feet scheduled to be released during the month. On Mondays through Fridays
during April, daily fluctuations due to load following will likely vary between a low of about
7,400 cfs (during late evening and early morning off-peak hours), to a high of about 13.400 cfs
(during late afternoon and early evening on-peak hours). On Saturdays, releases will likely vary
between a low of about 7,400 cfs during off-peak hours, to a high of about 10,500 cfs during
on-peak hours. Sundays, releases will likely vary between a low of about 7,400 cfs during
off-peak hours, to a high of about 10,200 cfs during on-peak hours.

Release rates in May, 2002 will similar to April. The current schedule shows 600,000 acre-feet
scheduled to be released in May which equates to a daily average release of about 9,800 cfs.

Inflow to Lake Powell has been below average so far in water year2002. Unregulated inflow to
Lake Powell in October, November and December of 2001 was 45.63, and 65 percent of
average, respectively. Unregulated inflow in January, and February of 2002 was 69 and 53
percent of average, respectively. while unregulated inflow in March 2002, was only 45 percent of
average.

With the current snowpack in the Colorado River basin very unimpressive, it's all but certain that
inflow to Lake Powell in water year 2002 will be below average. Basinwide precipitation has
been significantly below average in water year 2002, and snowpack in the Upper Colorado River
basin is currently a miserable 43 percent of average (as of April 9. 2(02). The April final inflow
forecast issued by the National Weather Service is calling for 3.0 million acre-feet of unregulated
inflow to Lake Powell during this year's April through July runoff. This is only 38 percent of
average.

Drier than average conditions have now prevailed for the past three years in the Colorado River
basin. Both water years 2000 and 2001 were below average inflow years. Total unregulated