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Presented to CCWCD, CSU Cooperative Extension Presented to CCWCD, CSU Cooperative Extension FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN November 30, 2005 November 30, 2005 Peter D Binney, P.E. Director, Aurora Water Aurora, Colorado [email protected]
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FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

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Page 1: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Presented to

CCWCD, CSU Cooperative ExtensionPresented to

CCWCD, CSU Cooperative Extension

FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN

FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN

November 30, 2005November 30, 2005

Peter D Binney, P.E.Director, Aurora Water

Aurora, [email protected]

Page 2: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

“Sin agua – no huy vida”“Sin agua – no huy vida”

Page 3: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Population Growth and Increasing Needs For Water

(Developable Water Supplies Are NOT Where the Demand Is Growing)

Population Growth and Increasing Needs For Water

(Developable Water Supplies Are NOT Where the Demand Is Growing)

.

Page 4: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Colorado’s Population GrowthColorado’s Population Growth

0100000020000003000000400000050000006000000700000080000009000000

1860 1880 1900 1920 1940 1960 1980 2000 2020 2040

Page 5: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

SWSI – Water Demand ForecastsSWSI – Water Demand Forecasts

Page 6: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

39,000 acres

2,600 acresor

2,400 acres

1,300 acresor

23,000 to 72,000 acres

7,900 to 16,000 acres

2,500 to 10,000 acres

No change

60,000 to 100,000 acres

133,000 to 226,000 acres

Potential Changes in Irrigated Acres (2000-2030)Potential Changes in Irrigated Acres (2000-2030)

Page 7: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Population Growth - South Platte Basin

0

1000000

2000000

3000000

4000000

5000000

2000 2005 2010 2015 2020 2025 2030

Year

Popu

latio

n

WeldLarimerJeffersonDouglasDenverBroomfieldBoulderArapahoeAdams

METR

O AR

EA

Page 8: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

METRO COUNTIES - M&I WATER DEMANDS

0100000200000300000400000500000600000700000800000

2000 2005 2010 2015 2020 2025 2030

Year

Acr

e-fe

et

JeffersonDouglasDenverBroomfieldBoulderArapahoeAdams

+254

,000 A

c-Ft

Page 9: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

LARIMER - WELD - M&I WATER DEMANDS

0

50000

100000

150000

200000

2000 2005 2010 2015 2020 2025 2030

Year

Acre

-Fee

t

WeldLarimer

+93,4

00 A

c-Ft

Page 10: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Colorado Surface WaterColorado Surface Water

South Platte

Urban Corridor

Page 11: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

South Platte Water UsesSouth Platte Water Uses

Irrigation 68%Municipal

22%

Industrial 3%Miscellaneous 7%

Page 12: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Location of Agricultural Water Uses / Cities

1,003,500 Acres Irrigated Lands

2,545,500 Ac-Ft Irrigation Diversions

Page 13: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Droughts Limit The Amount of Water Available to Serve Our CommunitiesDroughts Limit The Amount of Water Available to Serve Our Communities

.

Page 14: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...
Page 15: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Currently Developed Water Sources and Infrastructure Can be Compromised By Drought

Currently Developed Water Sources and Infrastructure Can be Compromised By Drought

Page 16: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

River Basins Have Varying Water Supply Conditions (1981 – 2005)River Basins Have Varying Water Supply Conditions (1981 – 2005)

Colorado River SWSI - 1981-2005

-5.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

Jun-

81

Jun-

83

Jun-

85

Jun-

87

Jun-

89

Jun-

91

Jun-

93

Jun-

95

Jun-

97

Jun-

99

Jun-

01

Jun-

03

Jun-

05

SWSI

South Platte SWSI -1981-2005

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

Jun-81

Jun-83

Jun-85

Jun-87

Jun-89

Jun-91

Jun-93

Jun-95

Jun-97

Jun-99

Jun-01

Jun-03

Jun-05

SWSI

Colorado River

South Platte River

Page 17: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Communities Must Locate, Develop and Deliver New Sources of Water to

Provide a Reliable Level of Service for Current and Future Residents

and Businesses

Communities Must Locate, Develop and Deliver New Sources of Water to

Provide a Reliable Level of Service for Current and Future Residents

and Businesses.

Page 18: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

How Will Cities Acquire Needed Water Supplies?How Will Cities Acquire Needed Water Supplies?

Water ConservationUse Reclaimed Water For Parks / Golf CoursesRecapture Reusable Return FlowsAcquire and Transfer Water From Existing Agricultural Uses:

Lease During DroughtsPurchase and Dry-Up FarmlandsIncrease Agricultural Efficiency/ Transfer SavingsRotational FallowingPurchase and Leaseback for Certain Times

Develop New Sources of Water From Trans-Basin DiversionsBuild Reservoirs and Pipes/ Treatment PlantsAddress Water Quality Issues

Page 19: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Agriculture-Municipal Interface Agriculture-Municipal Interface

OpportunityLeasing

ScheduledClosing

DripIrrigationSystems

Purchase/Lease Back

Efficiency

RotationalFallowing

DroughtLease

Purchase/ Dry Up

Options/Conservation

Easements

Page 20: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

CBT Shares Are Being Converted From Agricultural to Municipal UsesCBT Shares Are Being Converted From Agricultural to Municipal Uses

Page 21: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Commodity Pricing for CBT SharesSource: Northern Colorado Big Thompson Share TransactionsCommodity Pricing for CBT SharesSource: Northern Colorado Big Thompson Share Transactions

$14,000 per share

$20,000 / ac-ft2005

Page 22: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Aurora's South Platte ProjectAurora's South Platte Project

Page 23: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Delivery/ Purification FacilitiesDelivery/ Purification Facilities

Page 24: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Cities MUST Cooperatively Work With Areas Where Water Will be DevelopedCities MUST Cooperatively Work With Areas Where Water Will be Developed

The recapture of reusable return flows will affect flow patterns and yields in the South Platte RiverSome farmers will exercise their property rights to use, transfer, lease or periodically fallow historic agricultural water usesCities must pay for water rights, infrastructure and mitigation but the total cost must be absorbed in affordable municipal rate structuresCities must work with rural communities – can effective local/ 1041 regulations shape the future? Can workable relationships be developed for the benefit of both entities?

Page 25: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

Aurora’s Successful ProgramsAurora’s Successful Programs

Purchase of Rocky Ford Ditch with re-vegetation, School Payments, Economic DevelopmentLake County Transfer/ Open Space InitiativeHigh Line Canal Interruptible Supply ProgramRocky Ford II Drip Irrigation ProgramLower South Platte Augmentation Water Program/ Integrated OperationsLower South Platte Lease Back program

Page 26: FACING DRIER REALITIES IN THE SOUTH PLATTE BASINwaterquality.colostate.edu/documents/AuroraWater.pdf · FACING DRIER REALITIES IN THE SOUTH PLATTE BASIN ... Miscellaneous 7%. ...

What is Colorado’s Future?What is Colorado’s Future?