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Water Use in the Tennessee Valley. Water Use in 2010 and Projected Use in 2035. Alabama Water Resources Conference & Symposium Orange Beach, Alabama September 5, 2013. Amanda K. Bowen. River Operations & Renewables. Presentation Topics. Why does TVA do a Water Use Report?

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Water Use in the Tennessee Valley

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Water use in the tennessee valley

Water Use in the

Tennessee Valley

Water Use in 2010 and

Projected Use in 2035

Alabama Water Resources

Conference & Symposium

Orange Beach, Alabama

September 5, 2013

Amanda K. Bowen

River Operations & Renewables


Presentation topics

Presentation Topics

  • Why does TVA do a Water Use Report?

  • What are the results of the 2010 Study?

  • What are the results of the 2035 Projections?


Water use in the tennessee valley

Why the concern?

“The principal

water problem in the

early twenty-first century

will be one of

inadequate and uncertain

supplies…”

—National Research Council

Reference: National Research Council (2001)


Why the concern

Why the concern?

  • The quality of life in our region depends upon ample water for homes, businesses, farms, meeting places, and recreational activities

  • Dependable water is as fundamental to the economic growth of the region as is dependable, low-cost electricity

  • It is anticipated that water supply and water-quality issues, coupled with emerging water-use conflict over a fixed supply, will continue to increase across the southeast


Population growth rate 1990 2010

Population Growth Rate 1990-2010

1990

Population

2010

Population

Growth

Rate

(percentage)

Georgia

North Carolina

Tennessee

Virginia

U.S. Average

Alabama

Kentucky

Mississippi

6,478,149

6,632,448

4,877,203

6,189,197

248,790,925

4,040,389

3,686,892

2,575,475

9,687,653

9,535,483

6,346,105

8,001,024

308,745,538

4,779,736

4,339,367

2,967,297

50

44

30

29

24

18

18

15

Source: U.S. Census


The big question

The BIG Question

Can the Tennessee River

continue to meet

the increasing

water-supply demands

throughout the watershed

for the short- and long-term?


Water use in the tennessee valley

  • The Tennessee River System

  • 49 Dams for Integrated River Management

    • 29 Hydroelectric Dams

    • 19 Non-Power Dams

    • 1 Pumped-Storage Plant

  • 800 Miles of Navigable Waterway


Intakes and discharges

Intakes and Discharges


The tennessee river system in alabama

The Tennessee River System in Alabama

  • 4 Non-Power Dams

    • Bear Creek

    • Upper Bear Creek

    • Little Bear Creek

    • Cedar Creek

  • 3 Hydroelectric Dams

    • Guntersville

    • Wheeler

    • Wilson

  • 6 Locks Serve ~60 Alabama Ports and Terminals

    • 3 Main Locks and 3 Auxiliary Locks (1 each at each dam)

  • 25 Municipalities and 11 Industries Withdrawal Water


Water use report timeline

Water Use Report Timeline

2000

2005

2010


Water use in 2010

Water Use in 2010

Reference: Bohac and Bowen (2012)

All Units in mgd


2010 water use

2010 Water Use

Return:

11,480 mgd

(96.1% of WD)

Consumptive Use:

471 mgd

(3.9% of WD)

Withdrawal:

11,951 mgd

Reference: Bohac and Bowen (2012)


Comparing 2010 water use in alabama to valley states

Comparing 2010 Water Use in Alabama to Valley States


2010 water use in alabama

2010 Water Use in Alabama

All units in MGD


Projected water use in 2035

Projected Water Use in 2035

*This is the projected information utilized in the Reservoir Operations Study using 2000 data.

Reference: Bohac and Koroa (2004); Bohac and McCall (2008); Bohac and Bowen (2012)


References

References

  • Bohac, C. E. and Bowen, A. K., 2012, Water Use in the Tennessee Valley for 2010 and Projected Use in 2035, River Operations and Renewables, Tennessee Valley Authority, Chattanooga, Tennessee, July.

  • Bohac, C. E. and McCall, M. J., 2008, Water Use in the Tennessee Valley for 2005 and Projected Use in 2030, River Operations, Tennessee Valley Authority, Chattanooga, Tennessee, November.

  • Bohac, C. E., 2009. Water Supply and Demand in the Tennessee River Watershed, River Operations, Tennessee Valley Authority, Chattanooga, Tennessee, May

  • Bohac, C. E., and Koroa, M. C., 2004, Water Supply Inventory and Needs Analysis, River Operations, Tennessee Valley Authority, Chattanooga, Tennessee, November.

  • National Research Council, 2001, Envisioning the Agenda for Water Resources Research in the Twenty-First Century, Washington D.C.


When the well is dry we ll know the true worth of water

Questions?

For a copy of “Water Use in the Tennessee Valley for 2010 and Projected Use in 2035” please go to

http://www.tva.com/river/watersupply/index.htm

“When the well is dry, we’ll know the true worth of water.”

– Benjamin Franklin


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