1. 2 we are a headwaters state colorado rivers nourish 30 million people in 19 states & mexico
TRANSCRIPT
WATER a panel discussion on
Yampa River Basinits geographyits hydrology
the law
Panelists
Jay Gallagher – General Manager, Mt Werner Water and Sanitation District
Kent Vertrees – Regional Representative, Yampa/White Basin Roundtable
Kevin McBride - General Manager, Upper Yampa Water Conservancy District
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Hydrology of the Yampa Basin
• Hydrology - the Distribution, Movement, and Quality of Water on Earth
• This Discussion Limited to Distribution and Movement of Surface Water in the Yampa River Basin
• Take Away Message - the Hydrology of the Yampa River is HIGHLY VARIABLE! In Space and Time…
Disclaimer-
“Averages Without Variances are Meaningless - Or Worse Misleading”
Droughts (and floods) are not the average and they are important hydrology planning tools!
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By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, (on Average 21% O2)
* 19.5 percent: Minimum permissible oxygen level. No effect.
* 6-8 percent: 8 minutes - 100 percent fatal; 6 minutes - 50 percent fatal; 4-5 minutes - recovery with treatment. * 4-6 percent: Coma in 40 seconds, convulsions, respiration ceases - death.
Consider two sets of data of hourly oxygen in a room.
Both sets of numbers with the same daily average, 21.0%.
21,21,21,22,22,22,20,20,20,21,21,21- No effect
18,15,12,9,6,3,24,27,30,33,36,39 - Death
Beware the Average – an example
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A Tale of Two Drought Years
2002 2012
26 cfs Upper Yampa/Water Trust
Release from Stagecoach Reservoir
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Prior Appropriation a system of allocating water rights from a water source which developed due to the scarcity of water in that area.
Simple in Theory
“a call on the river”
Complex in
Application
Water Law in Colorado
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John Wesley Powell 1834 –1902)
• 1869 Powell Geographic Expedition, • Adoption of the appropriation doctrine in the Colorado
Constitution of 1876• Powell - proposed irrigation systems and state
boundaries based on watershed areas to avoid disagreements between states. (1878)
• The Office of the State Engineer was created in 1881• Powell - "Gentlemen, you are piling up a heritage of
conflict and litigation over water rights, for there is not sufficient water to supply the land.“ (1883)
• Colorado River Compact signed 1922• Water Right Determination and Administration Act of
1969 • Instream Flow Program Established 1973
Water Law - Long History
Delph Carpenter 1877-1951
Modeling the YampaLooking at the present (water rights) through the eyes of the past (paleo) to see the future.
Colorado’s Water Future
• 2001-03 drought created the political will
• 2005 state legislature took action - HB05-1177 “Water for the 21st Century Act”
• A bottom-up planning process: Stakeholders in each of 8 major river basinsformed Basin Roundtables - to assess existing supplies and future needs - to develop Basin Plans - send reps to the Interbasin Compact Committee
• 2001-03 drought created the political will
• 2005 state legislature took action - HB05-1177 “Water for the 21st Century Act”
• A bottom-up planning process: Stakeholders in each of 8 major river basinsformed Basin Roundtables - to assess existing supplies and future needs - to develop Basin Plans - send reps to the Interbasin Compact Committee
2008 2010 2020 2030 2040 2050 -
500,000
1,000,000
1,500,000
2,000,000
2,500,000
1,161,135
353,738
388,042
Statewide M&I and SSI Gap Summary Medium Scenario
(IPPs at 72% Yield)
Existing Supply 2050 Identified Projects and Processes2050 Gap Projection
Ac
re-F
ee
t/Y
ea
r
Existing Supply
Identified Projects & Processes
Shortfall
By 2050 population and economic growth to create a potential shortfall of 400,000AF.
Yampa-White-Green River BasinProjected water needs +67%
162
20912
30
28
58
20
75
0
100
200
300
400
2008 2050
Agriculture Municipal-Industrial Thermal Power Energy Extraction med
222 KAF
372 KAF
000's acre-feet
Meeting the Shortfall• Identified Projects and Processes
• Pursue identified in-basin storage projects• Foster new relationships
- fallow/lease arrangements between farmers & municipalities- re-use/lease arrangements between municipalities eg WISE
• Conservation• Develop more efficient irrigation methods• Reduce municipal use
• Agricultural Transfers • aka “ag dry-up”
• New Supply• New strategic trans-mountain diversion
• Identified Projects and Processes• Pursue identified in-basin storage projects• Foster new relationships
- fallow/lease arrangements between farmers & municipalities- re-use/lease arrangements between municipalities eg WISE
• Conservation• Develop more efficient irrigation methods• Reduce municipal use
• Agricultural Transfers • aka “ag dry-up”
• New Supply• New strategic trans-mountain diversion
Meeting the Shortfallin the Yampa River Basin
• Identified Projects and Processes• Little Morrison Creek storage• Colorado Water Trust Lease
• Conservation• Steamboat Springs Conservation Plan
(tiered water rates, water-efficiency rebates, leak detection,customer usage web portal, drought response plan)
• Agricultural Transfers • none identified
• New Supply• Maybell pumpback
• Identified Projects and Processes• Little Morrison Creek storage• Colorado Water Trust Lease
• Conservation• Steamboat Springs Conservation Plan
(tiered water rates, water-efficiency rebates, leak detection,customer usage web portal, drought response plan)
• Agricultural Transfers • none identified
• New Supply• Maybell pumpback
Colorado Water Plan• A bottom-up process
• funded and facilitated by the CWCB.
• A bottom-up process • funded and facilitated by the CWCB.
Governor’s Office & Legislature
Colorado Water Conservation Board
Interbasin Compact Committee
Basin Roundtables (8)
Colorado Water Plan• Statement of values and policies to guide
decision-making at the local and state level.- projects and programs- legislation to facilitate plan implementation
• Establish goals to meet water policy objectives
• State as facilitator of plan implementation.
• Statement of values and policies to guide decision-making at the local and state level.
- projects and programs- legislation to facilitate plan implementation
• Establish goals to meet water policy objectives
• State as facilitator of plan implementation.
Constraints on Water Plan• Hydrologic
• Highly variable annual flows – all rivers in region• Climate change
• Legal • Existing water rights & law of prior appropriation• 15 Interstate and International Agreements (“Compacts”)
• Regulatory• Endangered Species Act (ESA)• Existing action plans to mitigate degradation
• eg Yampa Plan
• Economic/Political• Balancing impact on existing uses and future growth• Local
• Feasibility of a New Strategic Trans-mountain Diversion• All the constraints above • Cost of financing $10B-$15B project• Political will to sustain multi-decade project
• Hydrologic• Highly variable annual flows – all rivers in region• Climate change
• Legal • Existing water rights & law of prior appropriation• 15 Interstate and International Agreements (“Compacts”)
• Regulatory• Endangered Species Act (ESA)• Existing action plans to mitigate degradation
• eg Yampa Plan
• Economic/Political• Balancing impact on existing uses and future growth• Local
• Feasibility of a New Strategic Trans-mountain Diversion• All the constraints above • Cost of financing $10B-$15B project• Political will to sustain multi-decade project