News from the Texas TMDL Program
News announcements including proposed TMDLs or I-Plans for public comment, adopted TMDLs or approved I-Plans, and training opportunities.
The TMDL Program sets targets for improved quality in surface waters. Communities in the watersheds work together to develop implementation plans (I-Plans) to achieve those targets.
Upcoming Meetings
Check back here for information on stakeholder and public comment meetings.
ANRA Annual Meeting: Hurricane Creek addendum
TCEQ will present preliminary results for Hurricane Creek TMDL allocations.
- https://www.tceq.texas.gov/waterquality/tmdl/nav/angelina-neches-river-authority-stakeholders-meeting
- ANRA Annual Meeting: Hurricane Creek addendum and Biloxi TMDL
- 2026-06-30T13:00:00-05:00
- 2026-06-30T14:00:00-05:00
- TCEQ will present preliminary results for Hurricane Creek TMDL allocations and Biloxi Creek TMDL allocations.
Tuesday, June 30, 2026
1:00 – 2:00 p.m.
Tres Palacios Creek and Carancahua Bay Stakeholder Meeting
This meeting will bring together local stakeholders, landowners, agency representatives, and conservation partners to discuss current water quality conditions, watershed protection activities, and future priorities for the region.- https://www.tceq.texas.gov/waterquality/tmdl/nav/trespalacios/tres-palacios-creek-and-carancahua-bay-stakeholder-meeting
- Tres Palacios Creek and Carancahua Bay Stakeholder Meeting
- 2026-06-30T13:00:00-05:00
- 2026-06-30T15:00:00-05:00
- This meeting will bring together local stakeholders, landowners, agency representatives, and conservation partners to discuss current water quality conditions, watershed protection activities, and future priorities for the region.
Tuesday, June 30, 2026
1:00 – 3:00 p.m.
Caney Creek Technical Assistance Workshop and Annual Meeting
The watershed stakeholder group will discuss any work done in relation to the Caney Creek Implementation Plan. During the workshop portion of the event, onsite-sewage facility maintenance, agriculture best practice funding, and implementation education will be discussed. We will also talk about measures the community can take to reduce fecal sources of bacteria to help Caney Creek meet water quality standards.- https://www.tceq.texas.gov/waterquality/tmdl/nav/caney-creek-technical-assistance-workshop-and-annual-meeting
- Caney Creek Technical Assistance Workshop and Annual Meeting
- 2026-07-30T15:00:00-05:00
- 2026-07-30T18:00:00-05:00
- The watershed stakeholder group will discuss any work done in relation to the Caney Creek Implementation Plan. During the workshop portion of the event, onsite-sewage facility maintenance, agriculture best practice funding, and implementation education will be discussed. We will also talk about measures the community can take to reduce fecal sources of bacteria to help Caney Creek meet water quality standards.
Thursday, July 30, 2026
3:00 – 6:00 p.m.
Cotton Bayou Annual Meeting
This meeting will be hybrid with the online option hosted via Zoom. In this meeting, H-GAC will provide an update on the project and Implementation Plan activities for this year and beyond.- https://www.tceq.texas.gov/waterquality/tmdl/nav/cotton-bayou-annual-meeting
- Cotton Bayou Annual Meeting
- 2026-08-04T16:00:00-05:00
- 2026-08-04T18:00:00-05:00
- This meeting will be hybrid with the online option hosted via Zoom. In this meeting, H-GAC will provide an update on the project and Implementation Plan activities for this year and beyond.
Tuesday, Aug. 4, 2026
4:00 – 06:00 p.m.
Big Creek Annual Meeting
The watershed stakeholder group will discuss any work done in relation to the Big Creek Implementation Plan. During this meeting, we will discuss measures the community is taking to reduce fecal sources of bacteria to help Big Creek meet water quality standards.- https://www.tceq.texas.gov/waterquality/tmdl/nav/big-creek-annual-meeting
- Big Creek Annual Meeting
- 2026-08-05T14:30:00-05:00
- 2026-08-05T16:30:00-05:00
- The watershed stakeholder group will discuss any work done in relation to the Big Creek Implementation Plan. During this meeting, we will discuss measures the community is taking to reduce fecal sources of bacteria to help Big Creek meet water quality standards.
Wednesday, Aug. 5, 2026
2:30 – 04:30 p.m.
Upper Oyster Creek Annual Meeting
The watershed stakeholder group will discuss any work done in relation to the Upper Oyster Creek Implementation Plan. During this meeting, we will review updates to the Dissolved Oxygen TMDL and discuss measures the community is taking to reduce fecal sources of bacteria to help Upper Oyster Creek meet water quality standards.- https://www.tceq.texas.gov/waterquality/tmdl/nav/upper-oyster-creek-annual-meeting
- Upper Oyster Creek Annual Meeting
- 2026-08-06T14:00:00-05:00
- 2026-08-06T16:00:00-05:00
- The watershed stakeholder group will discuss any work done in relation to the Upper Oyster Creek Implementation Plan. During this meeting, we will review updates to the Dissolved Oxygen TMDL and discuss measures the community is taking to reduce fecal sources of bacteria to help Upper Oyster Creek meet water quality standards.
Thursday, Aug. 6, 2026
2:00 – 4:00 p.m.
Tarkington Bayou and Luce Bayou Stakeholder Meeting
Join us as we discuss the progress and next steps of water quality protection within the watershed.- https://www.tceq.texas.gov/waterquality/tmdl/nav/tarkington-bayou-and-luce-bayou-stakeholder-meeting
- Tarkington Bayou and Luce Bayou Stakeholder Meeting
- 2026-08-20T14:00:00-05:00
- 2026-08-20T16:00:00-05:00
- Join us as we discuss the progress and next steps of water quality protection within the watershed.
Thursday, Aug. 20, 2026
2:00 – 4:00 p.m.
Chocolate Bay stakeholder meeting
The watershed stakeholder group will discuss any work done in relation to the Chocolate Bay Implementation Plan. During this meeting, we will discuss measures the community is taking to reduce fecal sources of bacteria to help Chocolate Bay meet water quality standards.- https://www.tceq.texas.gov/waterquality/tmdl/nav/chocolate-bay-stakeholder-meeting
- Chocolate Bay stakeholder meeting
- 2026-08-26T16:30:00-05:00
- 2026-08-26T18:30:00-05:00
- The watershed stakeholder group will discuss any work done in relation to the Chocolate Bay Implementation Plan. During this meeting, we will discuss measures the community is taking to reduce fecal sources of bacteria to help Chocolate Bay meet water quality standards.
Wednesday, Aug. 26, 2026
4:30 – 06:30 p.m.
Bessie’s Creek and Brookshire Creek Watershed stakeholder meeting
The watershed stakeholder group will discuss any work done in relation to developing the Bessie’s Creek Total Maximum Daily Load. During this meeting, we will review work completed and discuss the project’s timeline. This work is taking place to reduce fecal sources of bacteria to help Bessie’s Creek meet water quality standards.- https://www.tceq.texas.gov/waterquality/tmdl/nav/bessies-creek-and-brookshire-creek-watershed-stakeholder-meeting
- Bessie’s Creek and Brookshire Creek Watershed stakeholder meeting
- 2026-08-27T14:00:00-05:00
- 2026-08-27T16:00:00-05:00
- The watershed stakeholder group will discuss any work done in relation to developing the Bessie’s Creek Total Maximum Daily Load. During this meeting, we will review work completed and discuss the project’s timeline. This work is taking place to reduce fecal sources of bacteria to help Bessie’s Creek meet water quality standards.
Thursday, Aug. 27, 2026
2:00 – 04:00 p.m.
Adopted TMDLs
The Commission adopted Five TMDLs for Indicator Bacteria in the Mustang, Persimmon, and New Bayou Watersheds on Aug 6, 2025. Read more about this project on the Mustang Bayou project page.
The Commission adopted Two TMDLs for Indicator Bacteria in the Halls Bayou Tidal and Willow Bayou Watersheds on July 23, 2025. Read more about this project on the Halls Bayou and Willows Bayou project page.
The Commission adopted One TMDL for Poenisch Park on Aug. 6, 2025. It will be sent to EPA for approval, and once approved, it will become an update to the state’s Water Quality Management Plan. Read more on the Corpus Christi Beaches project page.
Approved I-Plans
On Aug. 6, 2025, the Commission approved the Implementation Plan for Seven Total Maximum Daily Loads for Indicator Bacteria in the Corpus Christi Region. Read more on the Corpus Christi Beaches project page.
Community stakeholders worked together to create Implementation Plans for three TMDL projects, which the Commission approved on July 9, 2025:
Revisions to TMDLs
From time to time, it is necessary to revise TMDLs to account for changing conditions in the watershed. Revisions to the load allocations in TMDLs are made via the State’s Water Quality Management Plan (WQMP), which is updated quarterly.
The WQMP provides projected effluent limits for use in planning and permitting activities under the Texas Pollutant Discharge Elimination System (TPDES). The TCEQ reviews all applications for new and amended permits for conformance with applicable portions of the WQMP, including adopted TMDLs.
UPDATE The April 2026 WQMP Update is available for public comment beginning May 8, 2026 through June 9, 2026. The draft of the WQMP update and instructions for providing comments can be found on the TCEQ’s WQMP: Invitation to Comment page. One TMDL addendum to the existing Cotton Bayou Tidal TMDL has been included as part of this update as Appendix I.
Training, Events, and Workshops
Texas A&M offers several opportunities for training in various aspects of Watershed Planning .
Texas Water Resources Institute offers training in Urban Riparian and Stream Restoration .
Texas AgriLife's Watershed Steward Program offers an online course .
NRCS Texas accepting applications for the Petronila Creek Nutrient Reduction Project NEW
The U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) in Texas is accepting applications for the Petronila Creek Nutrient Reduction Project in Nueces County, Texas. Through funding provided by the Deepwater Horizon Natural Resource Damage Assessment (NRDA), this project provides financial assistance to agricultural producers to improve water quality through the development and implementation of conservation plans and practices.
To be eligible you must own or operate agricultural lands in Nueces County, Texas, within three priority HUC-12 watersheds: City of Concordia-Petronila Creek, Gertrude Lubby Lake-Petronila Creek and Chapman Ranch Lake-Petronila Creek.
To apply, contact NRCS staff at the Robstown Service Center, 548 S. Highway 77, Suite B, Robstown, Texas, or by phone at 361-387-2533, ext 3.
Contact Us
Please email tmdl@tceq.texas.gov or call 512-239-6682.
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