WSP04694

• File Number: 8281.400
• Description: Colorado River Studies and Investigations -- Colorado River Depletion Projections
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1965
• Author: C. Jex Engineers
• Title: Report on Water Runoff and Stream Depletion of the Main Stem Colorado River Basin in Colorado
• Water Supply Pro - Doc Type: Report/Study

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of the facilities nOH under construction and the water

potentially divertable by pcssible ultimate expansion of
diversion facilities. The water potentially divertable by

ultimate expansion of diversion facilities is in large measure

presently used by Hater users located within the Coloradc River

basin.' In estin,ating this potentially divertable water, it is
assumed that ''later rights supporting the diversion of the addi-

tional water to Eastern Colorado could be acquired by providing

replacement water for the release of the inbasin rights attached

to the divertable water.

The follovling table ShO.IS the average annual his-

toricaJ; diversion for the 15 year study peri0d, the average

annualdi vertable Viater during the san:e period after the cori;-

pletion of diversion facilities now under construction and the

potential divertable water by the ultimate expansion of these
facilities.

Source of Supply

Annual Diversion in Acre Feet
Historical Anticipatede' PotentialCO'
Diversion Diversicn Ultimate

\'li,llo\l Creek & Colorado
River tributaries 163,100 263,600 308,000
F~aser River and 86,300
tni butaries 34,100 86,300
Uilliams Fork River and
tributaries 5,800 36,400 36,400
Blue River and " 310,500"
tributaries 3.300 204 , 0000
Total 206,300 590,300 741,200

A review of studies of potential new irrigation in-

dicates that about 36,030 acres of new irrigation may be anti-
cipated~ This added to the 80,320 acres presently irrigated

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