FLOOD02847

• County: Statewide
• Community: State
• Basin: Statewide
• Title: Metropolitan Water Supply Investigation Final Report
• Date: 1/1/1999
• Prepared For: CWCB
• Prepared By: Hydrosphere Resource Consultants, Inc.
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

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Metropolitan Water Supply Investigation

Table of Contents

Table of Contents

TABLE OF CONTENTS .......................................................................................................... I

List of Tables ...................... ...... ......... ............... ...... ..... ................. ... ....... ..... .... ...... ... .... ..... .... iv

List of Figures ........ ...................... ......... ........................ .... ........... .......... ........... ....... ............. iv

List of Appendices. ............. .................................... ............... ............ ...................... ..... .......... v

List of Abbreviations and Acronyms ..................................................................................... v

EXECUTIVE SUMMARY .................................................................................................... VI

Cooperative Water Supply Opportunities ............................................................................ vii
The Broader Benefits of the Collaborative MWSI Process................................................... ix

Recommendations .................................................. .......................................................... .... xii

1. INTRODUCTION................................................................................................................ 1

1.1. Preface ............ .......... .... .................................................................................................. I

1.2. Background.............. ......... .................................... .......................................................... 2

1.3. MWSI Origins and Objectives ....................................................................................... 3

2. MWSI PROCESS................................................................................................................. 5

2.1. Management ................ ....... ........... ............. ............................................................. ....... 5

2.2. MWSI Phases .. ................................ ...................... ................................................ ......... 5
2.2.1. Phase I Scoping ...................................................................................................... 6
2.2.2. Phase II Investigations ................... ........... ................................ ..................... ......... 8
2.2.3. Phase III Investigations .......................................................................................... 9
2.2.4. Phase IV Sub-Regional Studies............................................................................ 12

2.3. Coordination with Other Studies / Processes ............................................................... 12

3. MWSI RESUL TS............................................................................................................... 14

3.1. Basin-Wide Overview .................................................................................................. 14
3.1.1. Water Supply Service Area Regions ....................................................................14
3.1.1.1. Central Service Area Region......................................................................... 14
3.1.1.2. North Service Area Region............................................................................ 16
3.1.1.3. South Service Area Region............................................................................ 17
3.1.2. Water Source Regions .......................................................................................... 17
3.1.2.1. South Platte River Basin..............:................................................................. 17
3.1.2.2. Colorado River Basin .................................................................................... 19
3.1.2.3. Arkansas River Basin .................................................................................... 20
3.1.3. Metro Denver Area Water Supply Service Areas................................................. 20
3.1.4. Water Management Strategies..............................................................................24
3.1.4.1. Native South Platte. Supplies ......................................................................... 24
3.1.4.2. In-Basin Agricultural Transfers..................................................................... 25
3.1.4.3. Trans-Basin Imports ...................................................................................... 25

3.1.4.4. Water Reuse. ................................ ................................................. ................. 26

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Prepared for the Colorado Water Conservation Board, Colorado Department of Natural Resources by
Hydroopben: Resource Consultants, 1002 Walnut Stn:e~ Suile 200, Boulder, CO 80302