Clean Rivers Reports & Studies

Every five years, the TCEQ assesses water quality data from across Texas to identify concerns and impairments and create the 305(b) and 303(d) lists required by the Clean Water Act as amended. Clean Rivers programs, like the Nueces River Authority’s CRP program, produce their own summaries of water quality. Basin Highlights Reports are produced in most years, and Basin Summary Reports are produced every five years. In addition, annual steering committee presentations summarize water quality data for all water bodies, and stakeholder updates are produced quarterly.

In addition, NRA prepares an annual presentation for its steering committee that summarizes the past year’s water quality data for all water bodies within the Area of Responsibility. Further, regular reports to provide stakeholder updates are produced quarterly.

Water Quality Studies

When water quality concerns or impairments are identified, additional data may be required before plans can be made to address the water quality in that water body. Usually, special water quality studies are accomplished in collaboration with the CRP program.

Some common types of special studies include:

Recreational Use Attainability Analysis (RUAA) – evaluates the level of recreational use allowable in a particular waterbody. All waterbodies are designated for contact recreation use, unless that use has been amended based on information collected in a RUAA.

Total Maximum Daily Load (TMDL) – determines how much a particular pollutant can be processed by a water body each day without exceeding standards for particular uses.

Watershed Protection Plan (WPP) or Pollution Prevention Plan (PPP) – voluntary stakeholder-driven planning processes that produce a Plan which, when adopted by TCEQ and EPA, becomes the blueprint for addressing or preventing water quality concerns or impairments.

Find a Study

Below are links to completed special studies within the NRA’s Area of Responsibility.





Other Water Quality Studies & Evaluations