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Alternative Water Supplies in Texas

Alternative Water Supplies in Texas. Central Texas Water Conservation Symposium Jorge A. Arroyo, PE Water Management Consultant February 2014. Alternative…. To what ? … When is an alternative no longer an alternative?. Not an alternative to water conservation.

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Alternative Water Supplies in Texas

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  1. Alternative Water Supplies in Texas Central Texas Water Conservation Symposium Jorge A. Arroyo, PE Water Management Consultant February 2014

  2. Alternative…. To what?…When is an alternative no longer an alternative?

  3. Not an alternative to water conservation

  4. Alternative Water Supplies • Rain collection systems • Water reuse • Managed aquifer recharge • Desalination

  5. Rain Collection Systems Source: Texas Water Development Board

  6. Rain Collection Systems: Sole Source • Volume of rain • Water use • Storage • Treatment • Operation and maintenance Kight Residence RWH System- Boerne Source: Texas Water Development Board

  7. RWH System Sizing Calculator http://www.twdb.texas.gov/innovativewater/rainwater/resources.asp (*) starting with water in storage Rainwater Harvesting

  8. Rain Collection Systems – Institutional Redbud Center - Lower Colorado River Authority, Austin Source: Texas Water Development Board

  9. Rain Collection Systems: Subdivision • Subdivision-Scale Rainwater Harvesting Systems as a Water Supply Strategy • The Meadows Center for Water and the Environment: Texas State University, San Marcos • Feasibility, facility design and management protocol, backup supply • Texas Hill Country.

  10. Indirect Water Reuse

  11. Direct Water Reuse

  12. 2012 State Water PlanRecommended Water Management Strategies

  13. Reuse to be added in the next 17 years* * 2012 State Water Plan-DB12

  14. Managed Aquifer Recharge

  15. Aquifer Storage and Recovery In operation Potential Eastern Kerr County New Braunfels Guadalupe Blanco River Authority (Lulling) Barton Springs Edwards Aquifer District • Kerrville • El Paso* • San Antonio • Legislation filed to facilitate ASR projects • 83rd Texas Legislature – HB 3013

  16. Desalination of Ocean and Brackish Groundwater Sources • 367 miles of coastline • Availability of sites • Proximity to demand centers • Texas has an estimated 2.7 billion acre-feet of brackish groundwater

  17. Concentrate and power Saline Water Desalinated Water

  18. Brackish Groundwater Desalination

  19. 120 million gallons per day • 44 facilities [25,000 gpd or more] • El Paso’s Kay Bailey Hutchison Brackish Groundwater Desalination: 27.5 MGD

  20. Innovation in water supply • Increase water supply efficiency • Sustainable use of sources • Cost of innovation • Research • Demonstration Jorge A. Arroyo Water Management Consultant jarroyo@austin.rr.com 512-497-0474

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