texas innovation water 2010 seawater desalination what is the benefit to the state from implementing...
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Texas Innovation Water 2010
Seawater Desalination
What is the benefit to the State from implementing the Brownsville Seawater Demonstration Project?
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A Historical Perspectiveof Texas Water
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“Dependable supply from conventional sources such as lakes, rivers and wells is already 75 to 80
percent developed…”
Texas Water Development Board, 2000
Source: TWDB, The Drought in Perspective: 1996 to 1998.
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Planned Additional Water Supply(2010 to 2060)
New Groundwater (7%)
New Reservoirs (17%)
Conjunctive Use (4%) Conservation
(18%)
Reuse (15%)
Existing Surface Water (35%)
78% Sensitiveto Drought
Desalination (4%)
Source: TWDB, Water for Texas 2007.
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“It is not a matter of whether saltwater will one day be used as an abundant source for public use, but when. As people, we must have the courage to look into the future and invest today in a better tomorrow. There is no greater untapped source of water than the ocean water which Texas can easily access.”Governor Rick Perry, April 29, 2002
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2002 Governor’s Seawater Desalination Initiative2003 Legislative Directive2004 TWDB Feasibility Studies - Three Sites
1. Brownsville2. Corpus Christi3. Freeport
2005 Legislative Appropriation for Seawater Pilot - Brownsville
2008 Seawater Pilot Completed2009 Microfiltration Project – Arsenic and Iron Removal2009 Texas Desal Project – Proactively Identify
Environmental Concerns
Statewide Interest and Commitment
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Why Brownsville?
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Reservoir Capacity
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Region M Experience
2002 State Water Plan
Cities in Region M with Desalination as a
water supply strategy:
0
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Region M Experience
2007 State Water Plan
Cities in Region M with Desalination as a
water supply strategy:
30+
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Support for Seawater Desalination
DiversificationInnovationCommitment
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Diversification
Surface WaterBrackish Groundwater Desalination
• Southmost Regional Water Authority Plant
Seawater Desalination• Pilot Plant• Texas Desal Project – Proactively Identify Environmental Concerns
Long-Term Water Supply Strategy
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InnovationNew Alternatives Exploration
SRWA Desalination Plant• TWDB Feasibility Study (1995)• Technical/Financial Feasibility Study –
2000• Aquifer Testing – 2001• Groundbreaking for Facility - 2002• Largest Facility in Texas (2004)• Microfiltration Project (2009) – Arsenic
and Iron Removal
Seawater Pilot Plant (2008)
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Commitment
Leadership in Implementation
SRWA – $30 million - 100% Local Funding
Microfiltration Project - $13 millionSeawater Pilot Project
BPUB-$2.1 million – TWDB-$1 million
Texas Desal Project – Proactively Identify Environmental Concerns
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SummarySRWA – Brackish Groundwater DesalinationTexas Desal Project
Identify Environmental Impacts
Seawater Desalination in Brownsville is Technically FeasiblePilot data sufficient to develop full-scale facilityPhase approach will allow system performance evaluation prior to full-
scale investment
2.5 mgd Demonstration Seawater Desalination/Research Facility
Data will provide more efficient design and lower cost on future expansions
• Expand up to 25 mgd at the proposed location
Further diversify regional water supply sources
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Summary Research Facility for Desalination Technology
• Pretreatment
• Larger/more efficient membranes • Seawater variations/Gulf Coast difficulties
Renewable Energy Component• Energy Recovery• Sustainable Energy Supply
Brownsville has a proven track record and has demonstratedcommitment and ability to advance Seawater Desalination in
Texas
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“Seawater Desalination . . . holds the promise of providing unlimited supplies of drinking water even during periods of extreme drought. State investment in the Brownsville Seawater Desalination Demonstration Project represents a significant step in meeting the future water supply needs of the Lower Rio Grande Valley. It also represents even more significant progress towards meeting the future water supply needs of many regions in Texas.”Texas Water Development Board, 2006 Biennial Report on Desalination
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What is the Benefit to the State from Implementing the Brownsville Seawater Demostration Project?
Brownsville is a proven area with an abundant seawater source which will further diversify Texas’ water supply portfolio and provide an innovative Seawater-Research Facility that will serve as a pioneer for future cost effective Seawater Desalination along the Texas Coast.
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Contact Information
Genoveva G. Gomez, P.E.
Brownsville Public Utilities BoardWater & Wastewater Engineering & Operations Director
1425 Robinhood DriveP.O. Box 3270
Brownsville, TX 78523-3270(956) 983-6275