WSP04539

• File Number: 8200.750
• Description: San Juan River General
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 5/31/1961
• Author: Sidney L McFarland
• Title: Water Supply for the San Juan-Chama Reclamation Project and the Navajo Indian Irrigation Project
• Water Supply Pro - Doc Type: Report/Study

OJ~j73

4 WATER. SuPPLYFOR~TH'ESANfuAM1~li:PRojECT

Bureau oj Reclamation studies
'T!:j,e most recent long-time operation studies' of the Bureau of
Reclamation for reservoirs of the Colorado River storage projects are
,set outin tables 4, 5, 6, and 7 in the September 1960 "Financial and
Power Rate Analysis." The studies cover the 54-year period 1906'--59
and are closed-cyclic studies with the storage content at the end of
the year 1959 assumed to be the content at the beginning of the year
1906. The studies are based on the active storage capacity of the
a~thorized storage units which is estimated as follows: ' " "

Estimated active storage capacities in fiscal year 206&
[Units 1,000 acre-feet]

,
Sediment deposition to end
of year 2062 Remaining
Initial active active capae-
Unit storage ca. ity in fiscal
paetty In dead . In active year 2062
storage ca. storage ca-
pacity paeity
,
Glen ~anyon_ _ __ .._________________w_____.n__ 21,505 5,260 4,180 17,325
Flaming Gorge___ _ _ _ _ _ _ _n __ ____ _.n _ _ un _ _n_ 3,600 70 130 3,470
Navajo. _.w ___ _ _ __ __. _ _ _ ____ _w_ ___ ___ _ _ __ _ - - -.__ 1,028 250 80 948
OurecantL _n__ _ _ _ __ _ _ _ n.n ____u.n_ __._. n __ 720 10 20 700
Total____________________________________ 26. 853 5,590 4,410 22,443

The estimate of future depletion of the Colorado River Basin by
the year 2062 is based on a projection into the future. All of the
projects which make up the total of 6,200,000 acre-feet cannot be
Identified at this time. The following table summarizes the situation:

[Average annual depletion 1,000 acroMfeet]

Existing and authorized prior to 1949_ n___ ____ n_n__ _ __ _ _ _ _ _ -_ _ ___
Authorized by Public Law 485:
Evaporation by storage units_ _ n __n n n_____ ___ _ n _ n _ __ ___ __
Participating project8_ n_ ____ n ____ ___ _ _nn n_ ___ _ __ ____ ___ __
Sec. 11 (Blue River settlementl_____nnn________nn_nnn__
Other authorizations:
Collbran project, Colorado____ __ __ ______ _n____ __ _ ___ _ _ - __ n_ __
Utah Construction Co., New Mexico_nnn_n__________nnnn
Private developments, Wyoming___ _~_nn____ _ __ _" __ _ _ n_ _ _ _ ___

Subtotal existing and authorized____~__n__n_______nnnnn
Proposed i.n S, 1~7:., .
NavajO IndIan lrrlgatlOn_ _ _ _ _ __ _ ______n___ ______ __ __ __ __ _ n __
San Juan-Chama initial phase___ __ ___ _ _n_ __ ___n nn _, _C n n __

Subtotal with S. 107 ___ __ __ _n n _ ___ _ nnn n __ ___ __ _ _ _ __ _ __
Animas-LaPlata projectn n n _ _ _ _ n _ n _ _ _ _ _ _ _ __ n _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

Subtotal with Animas-LaPlata_ _ ______ ___n _ ___ _ _ _ __ _ _ _ __ _ ___
Other proposals before the Congress: '
Fryingpan-Arkansas, Colorado _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Savery-Pot Hook, Colorado- Wyoming_ _ _____n_nn_ _ __ n_ _ _, ___

'2,550

, 691
'404
'190

· 7
· 39
'17
3, 898
6252
6 no

4, 260
7130

4, 390

, 75
, 38

Subtotal existing authorized and proposed_ _ _ _ _ _ n _ _ _ _ _ _ _ _ _ _ _ _ 4, 503
I From December 1958 Financial and Economic Analysis.
2 Denver Blue River, Colorado Springs, and Englewood.
3 From definite pla~ report. .
., New Mexico permit. Estimate of qepletion by Steve Reynolds, State engineer.
,8 Utah Power & Light Co. steam plant and coking plant of Food Machinery & Ohemical Corp. Data
from region 4 letter of Mar. 10, 1961.
e From coordinated reports.
7 Preliminary data from region 4 letter of Mar. 7, 1961.
3 Includes evaporation losses from Ruedi Reservoir but does not include future western Colorado uses of
water released from Ruedi Reservoir.
Q From definite plan report.

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