WSP12936

• File Number: 8220.100.35
• Description: Colorado River Basin Monthly Content Reports
• Basin: Colorado Mainstem
• Date: 1/20/2004
• Author: Upper Colorado River Commission
• Title: 2004 reports: Content and Power Generation and Streamflow of Selected Colorado River Basin Reservoirs and Tributaries
• Water Supply Pro - Doc Type: Data

STREAMFLOW
Stream flow for the Colorado River, Green River and San Juan River stations for June 30 are shown in
Table 2. Data presented in the following table were obtained from the monthly report of stream flow and
reservoir contents in the Upper Colorado River Basin, as provided by the US Geological Survey Water
Resources Division, Utah District. A comparison of monthly stream flow to average monthly stream flow
during varying year periods from as long as 1914 to 2002 is presented for each following Table 2.

Table 2.- Stream flow for the Colorado River, Green River and San Juan River, June 2004

Colorado River
near Cisco, Ut 340 1670.4
Adjusted (a) 410 33% 2261.4 76%
Green River
at Green River, Ut 282 1322.0
Adjusted (b) 405 37% 1622.7 65%
San Juan River
near Bluff, Ut 97 502.0
Adjusted (c) 181 55% 890.0 88%
Total 719
Adjusted Total 996 37%
Colorado River
at Lees Ferry (d) 809

CUMULATIVE % LONG TERM
MONTHLY (MISC-2002)
MAY % LONG TERM (OCT03-JUN04) CUMULATIVE
DISCHARGE JUNE DISCHARGE DISCHARGE
(1000 a.f) DISCHARGE (1000 A.F.) (OCT-FEB)

(a) Adjusted for change in storage in Blue Mesa Reservoir. Storage began in Blue Mesa Reservoir on October 27, 1965
(b) Adjusted for change in storage in Flaming Gorge and Fontenelle Reservoirs. Storage began in Flaming Gorge
Reservoir on December I, 1962 and Fontenelle Reservoir in October of 1964.
(c) Adjusted for change in storage in Navajo Reservoir. Storage began on June 27, 1962. Not adjusted for San Juan-
Chama diversions
(d) Including the Paria River Discharge.

Colorado River
near Cisco, Utah

1400 I
q 1200 I
i 1000 I
:s 800 I
~ 600 I
~ 400 I
In 200 I ::~::.
o I :~r
Oct

~~~
::-;

@:
:~~

Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

I:I@I! BO-year monthly average 1==1 2003-2004 adjusted flow

2