PROJ00338

• Contract/PO #: C153749
• Contractor Name: DeWeese-Dye Ditch and Reservoir Company
• Contract Type: Loan
• Water District: 12
• County: Custer
• Bill Number: FSL
• Loan Projects - Doc Type: Feasibility Study

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STATE ~ COLORADO

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Colorado Water Conservation Board
Department of Natural Resources
721 Centennial Building
1313 Sherman Street
Denver, Colorado 80203
Phone: [phone]
FAX, [phone]

MEMORANDUM

Roy Romer
Governor

TO:

The DeWeese Dam File
Bill Green ~

James S. lochheCid
Executive Director, DNR

Daries C. Lile, PE
Director, eWeB

FROM:

DATE: Feb, 21, 1997

SUBJECT: GEl Feasibility Report

I have reviewed the Feb, 1997 draft of the GEl Feasibility Reportfor Dam Safety Modifications
for DeWeese Dam and have the following comments:

1. In general, the report is well writTen and does a good job of describing the alternatives for
rehabilitation of the dam and providing a logical set of conclusion and recommendations,

2, On page 5, under Description of the Reservoir Company, it would be worthwhile to add some
information in the third paragraph on the yield of the DeWeese-Dye system in terms of acre-feet
per year for average, minimum, and maximum conditions based on the information in the tables,
Also the average yield per share should be given. The typical method ofreservoir operation
should also be described, All ofthese items could be discussed in this part of the report or
possibly under WATER SUPPLY on page 7,

3, The fourth paragraph on page 5 beginning with "The DeWeese-Dye Ditch and Reservoir
Company continues to have,.." could be expanded 10 describe the types of crops grown and any
other information to indicate the importance of the crop production to the local and regional
economy, This might betTer fit under Service Area on the following page.

4, Under WATER RIGHTS on page 7, the question of priority dates should be explained in
terms of appropriation and adjudication dates per the discussion at the meeting on Feb, 20 in
Brookside,

5, For the No-Action Alternative on page 15, a paragraph could be added for a discussion of the
consequences of dam failure. In the same part of the report, it would also be helpful to discuss
the potential value of the roughly 2,400 acre-feet of average annual system yield atTributable to
reservoir storage, Even with some fairly conservative assumptions for the capital cost or the
annual cosl ofthe water, it looks as if the value of the water exceeds the cost of the project.