WSP12668

• File Number: 8230.400.30.F
• Description: Durango RICD - Other Reports
• State: CO
• Basin: Colorado Mainstem
• Water Division: 7
• Date: 3/1/2006
• Author: W. W. Wheeler and Associates
• Title: City of Durango Boating Park Hydrology Study
• Water Supply Pro - Doc Type: Report/Study

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TABLE OF CONTENTS

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

RICD Rules.................................................................................................................. 1

GENERAL INFORMATION .............. ............. ................... ... .............. ........... ................... 3

Boating Park Location.................................................................................................. 3

RICD Claims................................................................................................................ 3

Instream Flow Water Rights.........................................................................................4

Administration............................................................................................................. .4

COMPACT ENTITLEMENTS .......................................................................................... 5

Colorado River Compact.............................................................................................. 5

Drainage Basin.... ........................................................................................................ 6

Present Water Supply.................................................................................................. 6

Upstream Water Rights ................................. ................ ............... ...............................6
Absol ute Water Rig hts. .. .. .. .. .. .. .. .. . .. .. . . . . . . . . .. .. .. .. .. .. . . . . .. .. . .. . .. .. .. . .. .. . .. .. .. .. .. .. .. .. .. . .. .. .. ... 7
Conditional Water Rights.......................................................................................... 7

Existing Undecreed Uses.. .......... ........ ............. ............. ................... ............................7

Pending and Future Water Rights Applications... ....... ................... ........... .................... 7
Downstream Water Rights ...... ....... ................... ...................... .............. .............. .........8

Animas-La Plata Project........................................................................................... 8

Exe!:lange Opportunities............................................................................................. 10
Analysis of Boating Park Impact on Colorado River Compact Entitlement .................10
MAXIMUM UTILIZATION .... .......... .......... .......... ....... ........ .............. ........................ .......12
Federal Policies......................................................................................................... 12
Streamflow Availability ............................................................................................... 12

Daily Calculations................................................................................................... 13

Average Streamflow Calculations..... ......... ....... ......... ...................... .......................14
Exceedance Probability..... ............................. ........ .................... ............................14
Imported Water and Reservoir Releases ...................................................................15

CONCLUSIONS .......... ........ ............................ ..... .... ........ ...................... ...... ........... ......17

FIGURE 1- BOATING PARK LOCATION
TABLES
APPENDIX A - CWCB RULES
APPENDIX B - STREAMFLOW EXCEEDANCE PLOTS
APPENDIX C - APPLICATION IN CASE NO. 06CW09