1. Regional Water Supply and Demand AARO Energy and Water Committee March 7, 2018

2. Capital Area Council of Governments
CAPCOG – Regional Planning Commission in Statute; more often called a COG.
Emergency Communications 9-1-1
Area Agency on Aging/Aging & Disability Resource Center
Homeland Security Planning & Training
Regional Law Enforcement Academy
Air Quality Planning
Solid Waste Planning
Economic Development Analysis & Technical Assistance
Transportation Planning
3/7/2018
Capital Area Council of Governments

3. Ten – county service area; State of Texas planning region 12
3/7/2018
Capital Area Council of Governments

4. CAPCOG Executive Committee
Chair
Council Member Corbin Van Arsdale City of Cedar Park
First Vice Chair Commissioner Gerald Daugherty Travis County
Second Vice Chair
Council Member Andrea Navarrette City of Leander
Secretary
Judge
Paul Pape Bastrop County
Immediate Past Chair
Judge Bert Cobb Hays County
Parliamentarian
Commissioner Cynthia Long Williamson County
Judge
Brett Bray
Blanco County
Mary Cunningham
Llano County
Commissioner
Joe Don Dockery
Burnet County
Dan A. Gattis
Williamson County
Council Member William Gordon City of Smithville
Council Member Mike Heath City of Pflugerville
Mayor Pro-Tem Wiley Hopkins City of Buda
Council Member Jane Hughson City of San Marcos
Commissioner Debbie Ingalsbe Hays County
Judge
Ed Janecka
Fayette County
Council Member Frank Leffingwell City of Round Rock
Mayor
Caroline Murphy
City of Bee Cave
James Oakley
Burnet County
Commissioner
Maurice Pitts
Lee County
Mayor Brandt Rydell City of Taylor
Judge
Ken Schawe
Caldwell County
Commissioner Brigid Shea Travis County
Council Member Ellen Troxclair City of Austin
Mayor
Lew White
City of Lockhart
State Representative
John Cyrier
Jason Isaac
State Representative Celia Israel
Paul Workman
3/7/2018
Capital Area Council of Governments

5. Capital Area Council of Governments
Overview
What CAPCOG’s Been Doing on Water
Basics on State Water Plan & Regional Water Planning
Data on Water Demand, Supply, and Strategies for the CAPCOG Region
Variation in Reliance on Surface Water, Groundwater, and Demand Management within the Region
Costs Associated with Largest New Water Projects
3/7/2018
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6. What Has CAPCOG Been Doing?
Throughout 2017, we convened a body of stakeholders to examine the following questions:
Question 3: What can CAPCOG do to support regional water planning?
Question 2: Can we examine data and planning process by source & strategy?
Question 1: How does Texas manage water planning?
Overview of State Water Plan
Groundwater
Surface water
Conservation & Reuse
We’re working with our Board to answer this question now…
3/7/2018
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7. Capital Area Council of Governments
Basics on the State Water Plan
How the State Will Meet Projected Demand in a “Drought of Record” With Existing Supplies and Water Management Strategies Over 50 Years
Based on Regional Water Plans Developed by 16 Regional Water Planning Groups
Only Water Management Strategies Identified in the Plan Qualify for Water Development Board Financing
Most Recent Plan: 2017
3/7/2018
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8. Capital Area Council of Governments
Basics on the State Water Plan: Demand
Demand projections by “Water User Group” by County & Planning Region
Municipal, Mining, Crop Irrigation, Manufacturing, Steam Electric, Livestock
Accounts for Recent Use Patterns
Demand Management Strategies Include:
Drought management (temporary reduction in use)
Conservation (permanent reduction in use)
Reuse (using the same water multiple times)
3/7/2018
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9. Capital Area Council of Governments
Basics on the State Water Plan: Supply
“Existing Supply” Accounts For Water That:
A User Group Has a Legal Right To Use
Is Physically Able to Be Used in a Drought of Record
Constrained by Need for “Environmental Flows” for Surface Water and “Desired Future Conditions” for Groundwater
“New Supply” Accounts for:
New Reservoirs
Different Use of a Water Right
“New Water” from Brush Control, etc.
3/7/2018
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10. Capital Area Council of Governments
Water Planning Regions
3/7/2018
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11. Capital Area Council of Governments
River Basins
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12. Capital Area Council of Governments
Major Aquifers
3/7/2018
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13. Capital Area Council of Governments
Minor Aquifers
3/7/2018
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14. Capital Area Council of Governments
Groundwater Management Areas
3/7/2018
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15. Capital Area Council of Governments
Groundwater Conservation Districts
3/7/2018
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16. Areas without a GCD - All of Llano and Williamson Counties
-Half of Travis County
(new GCD in the SW- Southwestern Travis County GCD)
- Part of Caldwell County
3/7/2018
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17. Capital Area Council of Governments
Aggregate Regional Supply and Demand Projections
3/7/2018
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18. Capital Area Council of Governments
CAPCOG Water User Groups with “Needs”
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19. Capital Area Council of Governments
Water Management Strategies v. Aggregate “Need”
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20. Capital Area Council of Governments
Water Management Strategies by Type
Demand Reduction + Reuse = 45-48% of all Water Management Strategies
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21. Capital Area Council of Governments
New Surface Water as % of “Strategy Supplies”
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22. Capital Area Council of Governments
New Groundwater as % of “Strategy Supplies”
3/7/2018
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23. Capital Area Council of Governments
Demand Management as % of “Strategy Supplies”
Includes Demand Reduction and Reuse
*Demand Management Strategies Account for Larger Share than Surface Water
3/7/2018
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24. Capital Area Council of Governments
New Surface Water and Ground Water Supplies
WmsName
Source Type
2020
2030
2040
2050
2060
2070
LCRA - LANE CITY RESERVOIR
SURFACE
13,053
29,339
34,189
45,975
57,486
67,115
CITY OF AUSTIN – ASR
10,000
25,000
50,000
BRUSHY CREEK RUA-EXISTING CONTRACTS
42,000
LITTLE RIVER OCR
2,267
5,352
5,346
11,766
22,458
CITY OF AUSTIN - LAKE LONG ENHANCED STORAGE
22,000
GBRA - MBWSP - SURFACE WATER W/ ASR
2,855
2,875
5,489
7,582
11,913
19,991
LCRA - MID BASIN RESERVOIR
2,815
3,315
9,358
17,845
CITY OF AUSTIN - RAINWATER HARVESTING 83
828
4,141
8,282
12,423
16,564
LCRA - PRAIRIE SITE RESERVOIR
5,000
15,000
CARRIZO AQUIFER DEVELOPMENT
GROUND
5,593
7,503
9,710
11,994
HAYS/CALDWELL PUA PROJECT
124
1,675
3,110
5,431
8,089
11,472
GEORGETOWN WTP EXPANSION
11,626
11,988
11,991
11,304
VISTA RIDGE PROJECT
9,481
10,700
29 OTHER GROUNDWATER PROJECTS
13,528
21,834
25,996
29,519
34,890
36,826
11 OTHER SURFACE WATER PROJECTS
17,578
17,602
18,300
20,498
22,036
23,831
53 TOTAL PROJECTS
BOTH
136,295
196,154
221,673
275,142
323,997
379,100
Top 13 projects account for 77 – 84% of new water
3/7/2018
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25. 13 LARGEST NEW SUPPLY PROJECTS FOR REGION
ONLINE DECADE
CAPITAL COST
LCRA – LANE CITY OFF-CHANNEL RESERVOIR
2020
$218,593,000
CITY OF AUSTIN – AQUIFER STORAGE & RECOVERY
$312,316,000
BRUSHY CREEK RUA – NEW WATER SUPPLY
$318,401,660
LITTLE RIVER OFF-CHANNEL RESERVOIR
2030
$487,611,000
CITY OF AUSTIN – LAKE LONG ENHANCED STORAGE
$31,041,000
GBRA – MBWSP – CONJUNCTIVE USE WITH ASR
$700,897,000
LCRA – MID-BASIN OFF-CHANNEL RESERVOIR
$298,000,000
CITY OF AUSTIN – RAINWATER HARVESTING
$690,167,000
LCRA – PRAIRIE SITE OFF-CHANNEL RESERVOIR
$376,000,000
CARRIZO – WILCOX DEVELOPMENT (MULTIPLE)
$29,308,000
HAYS – CALDWELL PUA PROJECT
$309,723,000
GEORGETOWN WTP EXPANSION
$44,534,000
VISTA RIDGE PROJECT – SAWS
$571,958,000
SUBTOTAL
N/A
$4,388,549,660
3/7/2018
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26. Capital Area Council of Governments
Issues to Think About
Aggregate Regional Demand Outstrips Existing Supplies Around
Specific Water User Groups Have “Needs” As Soon as 2020 in the 2017 Water Plan
Water Management Strategies in 2017 Plan Are Sufficient to Cover Identified “Needs”
Successful Implementation of Both Demand-Side and Supply-Side Strategies Will Be Necessary to Ensure Adequate Supply to Meet Future Demand
3/7/2018
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27. Capital Area Council of Governments
Issues to Think About
“Desired Future Conditions” For Surface Water
Regionalized Water Systems & Interconnections
Brushy Creek Regional Utility Authority
Alliance Regional Water Authority
Inter-Regional Transfer of Groundwater v. Surface Water
Groundwater/Surface Water Interaction
How Much of a “Margin of Error” Do Communities Have?
3/7/2018
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28. Capital Area Council of Governments
Issues to Think About
Impact of Water Availability on Economic Competitiveness
On Water-Intensive Industries
On General Impact on Quality of Life
Impact of Uncertainty
Value of Coordination
CAPCOG Region: 3 Planning Regions, 7 GMAs
Research & Outreach
Demand-Side Strategies
Supply-Side Strategies
3/7/2018
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29. Capital Area Council of Governments
Staying Informed
3/7/2018
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30. Capital Area Council of Governments Director of Regional Services
Questions?
Capital Area Council of Governments
Andrew Hoekzema
Director of Regional Services
(512)
3/7/2018
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