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Current and Completed Projects of the TMDL Program

All TMDL program projects, listed in alphabetical order by project name.
Communities Working Together

The TMDL Program works to restore Texas waterways that have limited quality in relation to one or more of their assigned uses, such as recreation, fishing, or healthy aquatic environment.

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Title Description
Adams Bayou and Cow Bayou Watersheds: A Community Project to Protect Aquatic Life and Recreational Uses A project to reduce bacteria concentration and increase levels of dissolved oxygen to protect recreational and aquatic life uses. Total maximum daily loads (TMDLs) were developed and adopted for bacteria, dissolved oxygen, and pH. Stakeholders developed the approved implementation plan (I-Plan), which together with the TMDLs is the road map for improving water quality.
Aquilla Reservoir: Improving the Quality of Drinking Water Sources A completed TMDL project to reduce atrazine in Aquilla Reservoir, which is a source of drinking water for several communities. The adopted total maximum daily loads (TMDLs) and the approved implementation plan (I-Plan) were the road map for improving water quality in the lake.
Arenosa Creek: A Community Project to Protect Recreational Uses A project to reduce bacteria and protect recreational safety in Arenosa Creek. The stakeholders and the TCEQ developed a total maximum daily load (TMDL) and implementation plan (I-Plan), which together provide the road map for improving water quality in the creek. The TMDL is adopted and the I-Plan is approved.
Armand Bayou: Evaluating Water Quality for Aquatic Life A completed project to assess dissolved oxygen and support of aquatic life in Armand Bayou.
Arroyo Colorado: A TMDL Project for Legacy Pollutants and Organics A completed project to reduce legacy pollution from chemicals and make it safe to eat fish from the waterways. The total maximum daily loads (TMDLs) are adopted and the implementation plan (I-Plan) is approved. Together, the TMDLs and I-Plan are the the road map for improving water quality.
Arroyo Colorado: A Watershed Protection Plan A completed plan and assessment project to improve water quality in the Arroyo Colorado
Arroyo Colorado: Surveying Recreational Uses A completed project to evaluate recreational uses of the Arroyo Colorado
Assessing Toxicity in Ambient Water and Sediment in Seven Texas Water Bodies A completed project to assess the extent and severity of toxicity in ambient water and sediment in seven Texas water bodies.
Atascosa River: Evaluating the Aquatic Life and Recreational Uses A completed assessment project to evaluate concentrations of dissolved oxygen and bacteria in the Atascosa River in South Central Texas
Austin Area Watersheds: A Community Project to Protect Recreational Uses A community project to reduce bacteria and protect recreational safety in Waller, Walnut, and Shoal creeks and Taylor Slough in the city of Austin. The Austin community is currently working to update their Implementation Plan (I-Plan), which together with TMDLs developed by the TCEQ, provide the the road map for improving water quality. The commission adopted the TMDLs and approved the original I-Plan. The updated I-Plan currently in development will extend activities to reduce bacteria through 2027.
Big Creek: A Community Project to Protect Recreational Uses A project to reduce bacteria and protect recreational safety in Big Creek. The stakeholders and the TCEQ are developing a total maximum daily load (TMDL) and implementation plan (I-Plan), which together will be the road map for improving water quality.
Brandy Branch Reservoir: Assessing the Safety of Fish Consumption A completed project of the TMDL Program to assess the extent of contamination in fish from Brandy Branch Reservoir
Caney Creek Tidal and Linnville Bayou: A Community Project to Protect Recreational Uses A project to reduce bacteria and protect recreational safety in Caney Creek and Linnville Bayou. The stakeholders and TCEQ have developed a total maximum daily load (TMDL) and are working on an implementation plan (I-Plan), which together will be the road map for improving water quality. The TMDLs are adopted.
Carancahua Bay: A Community Project to Protect Recreational Uses A project to reduce bacteria and protect recreational safety in Carancahua Bay. The stakeholders and TCEQ developed a total maximum daily load (TMDL) and implementation plan (I-Plan), which together are the road map for improving water quality. The TMDL is adopted and the I-Plan is approved.
Carters Creek Watershed: Implementing TMDLs to Protect Recreational Uses A community project to reduce bacteria levels and protect recreational uses of the creek. Together, the adopted total maximum daily loads (TMDLs) and the approved Implementation Plan (I-Plan) are the road map to improving water quality in the creek.
Chocolate Bayou: A Community Project to Protect Recreational Uses A project to reduce bacteria and protect recreational safety in Chocolate Bayou. The stakeholders and the TCEQ are developing total maximum daily loads (TMDLs) and an implementation plan (I-Plan), which together will be the road map for improving water quality.
Clear Creek Above Tidal: A TMDL Project for Total Dissolved Solids and Chloride A completed project to develop and implement total maximum daily loads for total dissolved solids and chloride in the freshwater portion of Clear Creek that is above tidal influence. The TCEQ withdrew these TMDLs via the July 2014 Update to the Water Quality Management Plan.
Clear Creek: A TMDL Project for Volatile Organic Compounds A completed project to reduce pollution from volatile organic compounds (VOCs) that were making it unsafe to eat fish caught in the creek. The total maximum daily loads are adopted and the implementation plan is approved.
Clear Creek: A TMDL Project for Chlordane A completed project to address reduce chlordane in fish and protect the safety of consumers. The total maximum daily loads (TMDLs) are adopted and the implementation plan (I-Plan) is approved.
Clear Fork Trinity River: Evaluating Water Quality for Aquatic Life A completed project to evaluate the attainability of the presumed aquatic life use for the Clear Fork of the Trinity River
Colorado River Below E.V. Spence Reservoir: Implementing a Plan to Improve Water Quality A completed community project to implement total maximum daily loads (TMDLs) that reduced salinity from chloride, sulfate, and dissolved solids in the Colorado River below E.V. Spence Reservoir. The adopted TMDLs and the approved Implementation Plan (I-Plan) combined were the road map to improving water quality in the river.
Corpus Christi Beaches: A Community Project to Protect Recreational Uses A community project to reduce bacteria and protect recreational safety at beaches along Corpus Christi Bay. The total maximum daily loads (TMDLs) for waters adjacent to Cole and Ropes Park beaches are adopted, and those for Poenisch Park beach are in development. Stakeholders and TCEQ are developing one implementation plan (I-Plan) for all three beach areas. The TMDLs and I-plan, together, will provide the road map for improving water quality.
Cotton Bayou: A Community Project to Protect Recreational Uses A project to reduce bacteria and protect recreational safety in Cotton Bayou. The stakeholders and TCEQ are considering developing a total maximum daily load (TMDL) and implementation plan (I-Plan), which together will be the road map for improving water quality.
Dallas and Tarrant Counties: A TMDL Project for Legacy Pollutants A completed project to reduce legacy pollutant loads in streams and rivers in Dallas and Tarrant Counties. Together, the adopted total maximum daily load (TMDL) and the approved implementation plan (I-Plan) are the road map to improving water quality.
Dickinson Bayou: Implementing a Plan to Protect Recreational Uses A community project to protect recreational uses by reducing bacteria. The total maximum daily load (TMDL) is adopted and the implementation plan (I-Plan) is approved. Together, the TMDL and I-Plan are the road map to improved water quality.
Dickinson Bayou: Investigating Conditions for Aquatic Life A completed project to assess whether dissolved oxygen conditions in the bayou were sufficient to support fish and other aquatic life.
E.V. Spence Reservoir: Implementing TMDLs for Total Dissolved Solids and Sulfate A project to improve water quality by reducing total dissolved solids (TDS) and sulfate in E.V. Spence Reservoir. Together, the adopted TMDLs and the approved I-Plan are the road map to improved water quality.
Elm and Sandies Creeks: Evaluating Aquatic Life and Recreational Uses A completed project to evaluate high bacteria and low dissolved oxygen concentrations in Elm and Sandies creeks in south central Texas.
Fort Worth Area: A TMDL Project for Legacy Pollution A completed project to reduce legacy pollutants. Together, the adopted TMDL and the approved I-Plan are the road map to improving water quality.
Galveston Bay System: A Survey of Dioxin and PCBs A completed project to assess the distribution of dioxin and PCBs in the system.