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Trinity and San Jacinto Rivers and Galveston Bay: Stakeholder Committee and Expert Science Team

Basin and Bay Area Stakeholder Committee and Expert Science Team for the Trinity and San Jacinto Rivers and Galveston Bay. Meetings, links to member lists, recommendations, work plan documents, and previous meeting agendas and presentations.

Next Meeting

No meeting scheduled at this time.

Basin and Bay Area Stakeholder Committee (BBASC)

Stakeholder committees develop environmental flows recommendations for their river basin and bay system based on their associated science team's recommendations and other factors, including present and future needs of water for other uses.

The Trinity BBASC was appointed by the Environmental Flows Advisory Group (EFAG) on August 1, 2008.

Basin and Bay Area Expert Science Team (BBEST)

Science teams develop environmental flow analyses and a recommended environmental flow regime to support a sound ecological environment for their river basin and bay system. The science teams must consider all reasonably available science, without regard for other water use needs, and make recommendations based solely on the best science available.

The Trinity BBEST was appointed by the BBASC on December 1, 2008.

The Texas Water Code (TWC) required Basin and Bay Area Stakeholder Committees and Expert Science Teams for specific river basin and bay systems. TWC 11.02362 Exit the TCEQ.

Environmental Flows Recommendation Reports

BBEST Environmental Flow Regime Recommendations Report Adobe Acrobat PDF Document (Submitted to EFAG November 30, 2009)

Two separate recommendations were submitted by the members of the BBASC. They can be found below along with the transmittal letter to the Environmental Flows Advisory Group and a list of the members who endorsed each recommendation.

Adopted Environmental Flows Rules

On April 20, 2011, TCEQ adopted environmental flow standards for the Trinity and San Jacinto Rivers and Galveston Bay. For more information see the Environmental Flows Rules Web page or view the basin rules Adobe Acrobat PDF Document [30 TAC, 298(B)].

*The rules the TCEQ makes available on this site as a public service are not a substitute for the official rules as approved and filed with the Office of the Secretary of State. See full disclaimer. The TCEQ assumes no legal liability or responsibility for the accuracy or completeness of any information provided on this site. Official copies of TCEQ rules may be obtained by e-mailing register@sos.state.tx.us.

Work Plan for Adaptive Management

After submitting environmental flow recommendations, the TWC 11.02362(p) requires that the BBASC, assisted by the BBEST, prepare a work plan that:

  • establishes a periodic review of the environmental flow recommendations and a schedule for continuing validation or refinement of them
  • prescribes monitoring and studies

Once complete, the work plan is submitted to the Environmental Flows Advisory Group (EFAG) for approval.

Funding Cycles and Projects

FY 2014-2015

The 83rd Texas Legislature appropriated $2,000,000 to the Texas Water Development Board (TWDB) for the continued study of environmental flows and instream flows for Texas river basins.

FY 2016-2017

The 84th Texas Legislature appropriated $2,000,000 to TWDB for the continued study of environmental flows and instream flows for Texas river basins.

  • $300,000 was granted by TWDB for projects in the 2012 Trinity BBASC Work Plan
  • Studies will conclude on August 31, 2017