as it Affects North Texas and Water for Energy in North Texas

Transcription

1 Texas Water Plan as it Affects North Texas and Water for Energy in North Texas Tom Gooch Freese and Nichols Geological Society of America March 16, 2009

2 Introduction Who Am I Tom Gooch tcg@freese.com 817/ Vice President, Freese and Nichols Hydrologist, water supply planner 30+ years experience Regional Water Planning for Metroplex

3 Regional Water Planning Process Senate Bill 1 - Texas Legislature in 1997 Spurred by 1996 drought Population projected to double by 2060 Bottom up water planning process

4 Regional Water Planning Areas

5 Regional Water Planning Process Local and regional decision-making Open to public Statutory interests: Public Counties Municipalities Industries Agriculture Environment Small business Electric generating utilities River authorities Water districts Water utilities

6 Regional Water Planning Process 50-year planning period Project population and water demand Existing supply Evaluate need for additional water Recommend strategies

7 2007 Texas State Water Plan

8 Overview of Texas Water Supply Issues Year 2000 demand of 17 million acre-feet per year 24% municipal 14% industrial 62% agricultural Projected year 2060 demand of 22 million acre-feet per year 38% municipal 20% industrial 42% agricultural

9 Water Supply for the Metroplex Region C 16 county area Includes Dallas, Tarrant, Denton, Collin 1/4 of Texas population 1/12 of Texas water use 1/12 of Texas water use in 2000

10 Regional Water Planning Areas

11 Region C

12 Region C Water Supplies 90% is surface water 35 wholesale water providers and 351 water user groups 3 largest wholesale providers provide 75% ½ of the water used is returned as treated effluent Reuse could be a significant source of supply A small fraction is currently reclaimed and reused

13 Region C Demand Projection

14 Comparison of Currently Available Supplies and Projected Demands for Region C 3,500,000 3,000,000 Dem mand and Supply in Acre-Feet per Year 2,500,000 2,000,000 1,500,000 1,000, ,000 Reuse Groundwater Local Supplies Imports Region C Reservoirs Demand

15 Major Suppliers in Region C

16 Largest Region C Suppliers Dallas Supplies many other communities Current Supply Lakes Ray Roberts, Lewisville, Ray Hubbard and Tawakoni Planned supplies Conservation Reuse Existing Lakes Fork, Palestine, Wright Patman New Lake Fastrill

17 Dallas Planned Supplies Sup pply and Demand in Acre-Feet per Year 1,400,000 1,200,000 1,000, , , , ,000 Lake Fastrill Lake Wright Patman Lake Lewisville Indirect Reuse Connect Lake Palestine Lake Ray Hubbard Indirect Reuse Additional Direct Reuse Connect Lake Fork Contract for Return Flows Additional Dry Year Supply Conservation (DWU Current and Future Customer Cities) Conservation (DWU Retail) Direct Reuse (Cedar Crest GC) Lake Grapevine Lake Tawakoni Lake Ray Hubbard Decade Lake Ray Roberts/Lake Lewisville System Demands Total Currently Available Supplies

18 Largest Region C Suppliers Tarrant Regional Water District Supplies Fort Worth, Arlington, many others Current supply Lakes Bridgeport, Eagle Mountain, Cedar Creek, Richland-Chambers Planned supplies Conservation Reuse Existing Toledo Bend Lake and Oklahoma supplies New Marvin Nichols Lake

19 TRWD s Planned Supplies 1,200,000 Oklahoma Water Sup pply and Demand in Acre-Feet per Year 1,000, , , , , Decade Toledo Bend Reservoir Marvin Nichols Reservoir Third Pipeline and Reuse Conservation Richland-Chambers Cedar Creek Lake Benbrook West Fork System Total Currently Available Supplies Projected Demands

20 Largest Region C Suppliers North Texas Municipal Water District Supplies communities north and east of Dallas Current supply Lakes Lavon, Chapman, and Texoma and reuse Planned supplies Conservation Additional reuse Existing Toledo Bend, Texoma, Oklahoma water New Marvin Nichols and Lower Bois d Arc Lakes

21 NTMWD s Planned Supplies 1,200,000 Oklahoma Water Toledo Bend Phase 1 Sup ply and Demand in Acre-Feet per Year 1,000, , , , ,000 Marvin Nichols Reservoir Lower Bois d'arc Creek Reservoir New Lake Texoma Upper Sabine Basin Interim GTUA Supply Additional Lake Lavon Yield East Fork Reuse Wilson Creek Reuse (new) Interim DWU Supply Conservation Lake Bonham Wilson Creek Reuse (permitted) Lake Chapman Decade Lake Texoma Lk Lake Lavon Total Currently Available Supplies Projected Demands

22 Planned Supplies in the Region C Plan Current Surface water 29% Current rrentgroundwater 2% Conservation and Reuse 28% New Reservoirs 18% New Groundwater 0% Connect Existing Supplies 23%

23 Major Existing Interbasin Transfers in Texas

24 Major Proposed Interbasin Transfers in Texas C7 C2 C1 C8 C3 G2 C4 C9 C6 G1 L1 H2 H1 N1 N2 L2 N3 N4 M1

25 Water Supplies for the Energy Sector Two major uses for energy sector in North Texas Cooling for power plants Natural gas drilling in Barnett Shale

26 Water Supplies for the Energy Sector Cooling for power plants 2007 State Water Plan based on study by power providers Recent report from Bureau of Economic Geology (UT) Lower starting point (2006 Water Use) Lower water use assumed Location of demand based on existing plants

27 Water Supplies for the Energy Sector

28 Water Supplies for Energy Sector

29 Water Supplies for Energy Sector Barnett Shale Natural gas field, west part of Region C Water is used for high h pressure fracturing of shale formation 4 to 11 acre-feet used per well 7,200 acre-feet used in report by R.W. Harden and Associates

30 Water Supplies for Energy Sector Barnett Shale Use peaks soon, declines slowly High 30, acre-feet per year peak Medium 20,000 acre-feet per year Low 7,200 acre-feet per year peak Substantial use through 2025

31 Water Supplies for Energy Sector

32 Water Supplies for Energy Sector

33 Closing Thoughts New supplies are needed Conservation is essential Reuse should be encouraged Interbasin transfers are essential New reservoirs are also needed Environmental issues continue to increase in importance Public support is needed d to move forward

34 Contact Info Tom Gooch - tcg@freese.com - 817/ Texas Water Development Board Web Site t t t t /h /i d Region C Web Site