C150069 Benefits & Potential Roles Report

• Contract/PO #: C150069
• Contractor Name: Colorado State University
• Contract Type: MOU
• Water District: 0
• Loan Projects - Doc Type: Report

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TABLE OF CONTENTS

Chapter 1 -Introduction

Pressurized Dual Water Systems
The Value of Dual Systems
The Role of Canal Companies and Irrigation Districts
Advantages for Municipalities
Concerns About Secondary Systems
Concerns Voiced by Canal Companies and Irrigation Districts
Historical Precedents
Conclusion

Chapter 2 - Current Issues and Trends

The Davis and Weber Case Study
The Nampa-Meridian Case Study
Colorado Examples
Current Trends
Some Equity and Sustainability Concerns
Conclusion

1
3
4
5
6
7
8
9
9
11
11
17
17
19
21
22

Chapter 3 - Agricultural Water Suppliers in Secondary Water Management 23

New Challenges 23
Modernizing Agricultural Systems 33
Financing Resources for Secondary Systems 34
The Secondary System Revenue Stream 34
Colorado's "Missing Link" in Water Policy 35
Recent Trends in Secondary Supply 36
Supporting Policies Leading to Success 37
Conclusion: A State Policy in the Making? 39

Chapter 4 - State Water Development and Secondary Supply Systems

Transbasin Diversions
Developing Additional Storage
Water Exchanges
Municipal Acquisition of Canal Company Stock
Condemnation
Recycling
Water Banking
Water Conservation
Summary

42

45
45
47
47
48
49
49
49
50

Chapter 5 - The Cost and Use of Treated Water and Implications for the Expansion of
Secondary Systems 54

Overview 54
Municipal Water Systems 57
Water Costs 58
Relevance to Canal Companies and Irrigation Districts 58
Total Water Use 59
Separating Indoor from Outdoor Water Use 60
Lot Size as A Factor 60

III