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Current, Completed, and Inactive Projects of the TMDL Program

All TMDL projects, listed in alphabetical order by project name
communities working together taking care of our rivers, lakes, and bays

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
Lower Leon Creek: A Project to Assess Bacteria A completed project to assess the extent of impairments due to bacteria in Lower Leon Creek
Lower Leon Creek: Evaluating Water Quality to Protect Aquatic Life A completed project to collect dissolved oxygen samples in the stream and add to the data available for evaluating the aquatic life use.
Lower Leon Creek: Fish Tissue Sampling Project An inactive project to evaluate and reduce high PCB concentrations in fish tissue Lower Leon Creek
Lower Sabinal River: A TMDL Project for Nitrate-Nitrogen A completed project to improve water quality in the Lower Sabinal River. The TMDL is adopted and the implementation plan is approved; together, they provide the...
Lower San Antonio River: A Community TMDL Project to Protect Recreational Uses A community project to reduce bacteria concentrations and protect recreational safety in the river. The TMDLs are adopted; stakeholders are developing the imple...
Martin Creek Reservoir: Assessing the Safety of Fish Consumption A completed project to assess the safety of consuming fish from Martin Creek Reservoir
Matagorda Bay and Nearby Coastal Waters: A Project to Assess Dissolved Oxygen and pH A completed project to assess dissolved oxygen and pH in Matagorda Bay and nearby coastal waters
Mid Cibolo Creek: A Project for Dissolved Oxygen A completed project to assess and improve dissolved oxygen concentrations in Mid Cibolo Creek in South Central Texas
Mission and Aransas Rivers, Tidal Portions: A Community Project to Protect Recreational Uses A community project to keep recreation safe in tidal segments of the Mission and Aransas rivers by reducing bacteria levels. Together, the adopted TMDLs and app...
North Bosque River: Implementing a TMDL to Protect General Uses A project to improve water quality by developing and implementing TMDLs. The TMDLs are adopted and the I-Plan is approved; together, they provide the road map t...
Nueces Bay: A TMDL Project for Zinc A completed project to develop and implement TMDLs to reduce zinc in oyster harvesting waters.
Orange County Watersheds: A TMDL Project to Protect Aquatic Life and Recreational Uses A community project to improve water quality for support of recreational and aquatic life uses. TMDLs were developed and adopted for bacteria, dissolved oxygen,...
Oso Bay: A Community Project to Protect Recreational Uses A community project to reduce bacteria levels and protect recreational safety in the bay. Stakeholders are developing an implementation plan for the Oso Bay/Oso...
Oso Bay: A Project to Assess the Oyster Waters Use A completed assessment project to determine whether bacteria levels in Oso Bay are high enough to affect oyster beds in Corpus Christi Bay.
Oso Creek: A Community Project to Protect Recreational Uses A community project to protect recreational uses of the creek by reducing concentrations of bacteria in Oso Creek and in Oso Bay. The stakeholders are investiga...
Patrick Bayou: Assessing Toxic Substances and Temperature A completed project to assess the need for a TMDL for Patrick Bayou.
Sam Rayburn Reservoir: A Project to Evaluate the Aquatic Life Use A completed project to assess whether TMDLs were necessary to improve water quality for support of aquatic life in Sam Rayburn Reservoir
San Antonio River Basin, Leon River, and Peach Creek: Evaluating Water Quality for Recreation A completed project to assess the need to develop bacteria TMDLs for the San Antonio River, Salado Creek, Walzem Creek, Leon River, and Peach Creek
San Jacinto River Tidal: A Project to Assess Legacy Pollutants in Fish A completed project to assess consumer risk from legacy pollutants in edible fish
South Central Texas Streams: Evaluating Water Quality for Aquatic Life and Recreation Completed assessment project that evaluated high bacteria and low dissolved-oxygen concentrations in several streams in south central Texas and determined wheth...

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