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Desalination and ASR in a Brackish Aquifer in Central Texas. Brian A. Smith Ph.D., P.G. Brian B. Hunt, P.G. Barton Springs/Edwards Aquifer Conservation District. Kent Butler Summit April 25, 2014 Lady Bird Johnson Wildflower Center. Texas’ Water Problems. District Management Zones.
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Desalination and ASR in a Brackish Aquifer in Central Texas Brian A. Smith Ph.D., P.G. Brian B. Hunt, P.G. Barton Springs/Edwards Aquifer Conservation District Kent Butler Summit April 25, 2014 Lady Bird Johnson Wildflower Center
District Management Zones Austin WFC • Western Edwards • Eastern Edwards • Saline Edwards • Trinity Outcrop Buda Kyle
District Regulatory Setting Austin WFC No new historical Edwards permits- only conditional Edwards permits Buda Kyle
District Regulatory Setting Austin WFC Historical permits for Trinity Aquifers Buda Kyle
District Regulatory Setting Austin WFC Saline Edwards Aquifer can be used for extraction with limits Buda Kyle
District Regulatory Setting Austin WFC Aquifer Storage and Recovery allowed for saline Edwards and Trinity Aquifers Buda Kyle
Austin Kyle
Austin Q Q Q Kyle
Austin G Q Q Q Kyle G
Austin G L Q Q Q Kyle G
Austin Kyle
Austin Kyle
Austin Kyle
Saline Zone of the Edwards Aquifer • Fresh-brackish boundary is relatively stable (Lambert et al., 2010) • Desalination- yields likely to be high (Pabalan et al., 2003). • Aquifer Storage and Recovery (ASR) generally is effective in brackish aquifers Smith et al., in review
Acknowledgments 1880s 1980s R.T. Hill Chock Raymond Kent