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Brackish Desalination Project: A Sustainable Solution for San Antonio's Water Needs

Explore the significance of brackish desalination in San Antonio, leveraging Governor’s 2002 Desalination Initiative. Uncover project location, components, challenges, lessons learned, and next steps to harness this untapped water resource for diversification and sustainability. 8 Relevant

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Brackish Desalination Project: A Sustainable Solution for San Antonio's Water Needs

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  1. Presentation Outline Why Brackish Desalination? Project Location Project Components Project Challenges Next Steps Lessons Learned Summary
  2. Why Brackish Desalination? Governor’s 2002 Desalination Initiative Resource close to San Antonio Un-utilized resource Diversification SAWS Brackish Test Site 1
  3. Project Location Located on Aquifer Storage & Recovery property 11,800 acre-feet (Phase 1) Potential to expand to 25,000 acre-feet 45-mile Integration Pipeline will deliver water to south and west, may be built in phases
  4. Project Components Production / Monitor Wells Reverse Osmosis Treatment Plant Pipeline System Brine Injection Wells Electrical System
  5. Project Challenges Groundwater District Regulation State Water Management Concentrate Disposal Real Estate Public Perception Funding SAWS Membrane Pilot Test Unit
  6. Project Challenges Groundwater District Regulation State Water Management Region L Plan Groundwater Management Areas
  7. Project Challenges Concentrate Disposal SAWS Disposal Options Surface Water Deep Well Injection Permitting General Permit
  8. Project Challenges Public Perception Citizen’s Advisory Panel Project Opposition Response to Opposition Science Committee Project starts in Bexar County Construct Monitor Wells Continued information to political leadership in Bexar County and surrounding Counties
  9. ProjectChallenges Funding – Water Resources CIP Budget
  10. ProjectChallenges Other Funding Sources TWDB Water Infrastructure Funds $35 Million – low interest deferred loans for Planning and Design $24 Million – low interest loans for Construction Federal Funds – Bureau of Reclamation
  11. NextSteps Additional Pilot Testing (2011) Drill Test Injection Well (2011) Engage Program Manager (early 2012) Engage Construction Manager at Risk (late 2012)
  12. Lessons Learned Inform political leadership early (preferably before feasibility work) Never underestimate project opposition Start land acquisition early Determine water quality early Pilot membranes early Refine concentrate disposal options early
  13. Summary 2020 – Worst Year of DOR Project Benefits Diversification - project relieves pressure on the Edwards Aquifer Additional use of previously purchased System property “State-of-the-Art” Treatment Phase 1 supplies approximately 5% of SAWS water needs 222,000 AF 253,000 AF 279,000 AF 151,000 AF Edwards 102,000 AF Non-Edwards Note: Excludes Recycle Water
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