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Projects of the TMDL Program

Communities working together on projects to improve water quality in the streams, lakes, and bays of Texas by reducing pollution.
stakeholder meeting photo
TMDL project kick-off meeting

The TMDL Program works with communities around the state to restore Texas waterways that have limited quality in relation to one or more of their assigned uses, such as recreation, fishing, or a healthy aquatic environment. The latest Index of All Water Quality Impairments, part of the Texas Integrated Report of Surface Water Quality, shows all impaired waterways and the strategies that are planned or under way to improve their quality.

In addition to working with stakeholders to develop and implement TMDLs, the program manages studies that determine the best management strategies for specific waterways. Learn more about TMDLs and How They Are Implemented or what it means to participate in TMDL projects.

TMDLs and I-Plans

  • TMDLs or I-Plans in Development
    Projects are listed in alphabetical order by waterway or region name. This includes projects for which TMDLs have been adopted but I-Plans are still in development. 
  • Watersheds Where TMDLs Are Being Implemented
    These are stakeholder-developed plans to implement TMDLs that are under way. They are organized in alphabetical order by waterway or region name.


Surveys and Assessments

Review use attainability surveys and studies to assess the extent or nature of impairments. These are listed in alphabetical order by waterway or region name.

All Projects

Both TMDLs and assessments are listed here in alphabetical order by waterway or region name.

Contact the TMDL Program

Please email or call 512-239-6682. Sign up to get News Updates from the TMDL Program to be notified when TMDLs or I-Plans are in public comment, along with notices of adoptions and approvals and other water quality news. 

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Communities Working Together