Regional Water Plan: Region K (Lower Colorado), 2016, Volume 2. Water Management Strategies and Appendices Page: Toc-9
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2016 REGION K WATER PLAN TOC-9
TABLE OF CONTENTS
VOLUME 2
CHAPTER 5.0: IDENTIFICATION, EVALUATION, AND SELECTION OF WATER
MANAGEMENT STRATEGIES BASED ON NEED ..........................................................................5-1
5.1 POTENTIAL WATER MANAGEMENT STRATEGIES.......................................................5-1
5.2 RECOMMENDED WATER MANAGEMENT STRATEGIES.......................5-2
5.2.1 Utilization of Return Flows ......................................................................................... 5-3
5.2.1.1 COA Return Flows Strategy ..........................................................................5-4
5.2.1.2 Downstream Return Flows ............................................................................ 5-7
5.2.2 Conservation ............................................................................................................... 5-7
5.2.2.1 LCR A C onservation ...................................................................................... 5-8
5.2.2.1.1. Enhanced Municipal and Industrial Conservation...............5-8
5.2.2.1.2. Agricultural Conservation...........................................................5-9
5.2.2.2 C O A C onservation ................................................................................... ,. 5-9
5.2.2.3 M unicipal Conservation ..................................................................... 5-12
5.2.2.4 Irrigation Conservation........................................................................ . 5-19
5.2.2.4.1. On-Farm Conservation..........................o5-19
5.2.2.4.2. Irrigation Operations Conveyance Improvements.......... 5-24
5.2.2.4.3. Conservation through Sprinkler Irrigation................... 5-26
5.2.3 Wholesale Water Provider Management Strategies .................................................-5-29
5.2.3.1 LCRA W ater M anagement Strategies ....................................................... 5-29
5.2.3.1.1. General LCRA Strategy - LCRA System Operation Approach" 5-30
5.2.3.1.2. Amendments to Water Management Plan..............5..... -31
5.2.3.1.3. Amendments to ROR Rights, including Garwood.............5-34
5.2.3.1.4. LCRA Contract Amendments ...................................................5-36
5.2.3.1.5. LCRANew Water Sale Contracts......................... 5-38
5.2.3.1.6. Conservation ............................................................................ 5-40
5.2.3.1.7. Groundwater Supply for FPP (On-site)..................... 5-40
5.2.3.1.8. Groundwater Supply for FPP (Off-site).................... 5-41
5.2.3.1.9. Expand Use of Groundwater in Bastrop County (Carrizo-
Wilcox Aquifer) ....................................................................... 5-43
5.2.3.1.10. Off-Channel Reservoirs ............................................................ 5-45
5.2.3.1.11. Acquire Additional Water Rights.............................................. 5-52
5.2.3.1.12. Downstream Return Flows........................................................ 5-53
5.2.3.1.13. Description of the Impact of the Management Strategies on
Navigation.....................................................5-53
5.2.3.2 City of Austin (COA) Water Management Strategies.................... 5-53
5.2.3.2.1. Water Conservation .................................................................. 5-54
5.2.3.2.2. Water Reclamation Initiative (Direct Reuse)................. 5-54
5.2.3.2.3. Aquifer Storage and Recovery .................................................. 5-57
5.2.3.2.4. Longhorn Dam Operation Improvements.................. 5-59
5.2.3.2.5. Rainwater Harvesting ............................................................... 5-60
5.2.3.2.6. Lake Long Enhanced Storage ................................................... 5-62
5.2.3.2.7. O ther R euse.............................................................................. 5-64
5.2.3.2.8. Capture Local Inflows to Lady Bird Lake................... 5-65
5.2.3.2.9. Indirect Potable Reuse through Lady Bird Lake...............5-66
5.2.3.2.10. Lake Austin Operations ............................................................ 5-68
5.2.4 Regional Water Management Strategies..................................................................... 5-69
5.2.4.1 Expansion of Current Groundwater Supplies ............................................... 5-69
Lower Colorado Regional Water Planning Group
November 2015
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Lower Colorado Regional Water Planning Group. Regional Water Plan: Region K (Lower Colorado), 2016, Volume 2. Water Management Strategies and Appendices, report, November 2015; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth838530/m1/3/?q=Lamar+University: accessed June 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.