Water Quality

Water Quality Studies

Bexar Regional Watershed Management (BRWM) takes a comprehensive view of both water quality and water quantity. An abundant supply of clean water affects not only public health, but entire ecosystems as well. Water quality, wastewater effluent quality, habitat conditions and fish community composition together reflect the health of our water.

Scientists monitor the quality of our surface, drinking, and reclaimed water, ensuring compliance with federal and state regulations.

Watershed Protection Plan

As part of its water quality focus in the San Antonio River Basin, BRWM has developed a basin-wide Watershed Protection Plan (WPP). In an effort to enhance the San Antonio River Improvements Project and improve and protect water quality throughout the Planning Reach, the WPP is serving as a guide to address non-point source pollution. The overall water quality goal of the WPP is to reduce bacteria levels so that the uppermost reach of the Upper San Antonio River is compliant with State Water Quality Stream Standards. Phase 1 of the WPP established the framework needed for public outreach, awareness and input efforts, as well as collaboration with partners and stakeholders.

Watershed PRotection Plan Final Report

Watershed Protection Plan Final Report

For more information on water quality studies, go to www.sara-tx.org/site/water_quality/water_qual_mon/Projects_and_Studies.php.

Leon Creek, Segment 1906 TMDL for Dissolved Oxygen and Bacteria Impairments:

The draft 2008 TCEQ 303(d) List (March 19, 2008) identifies several assessment units in the Lower Leon Creek as being impaired based on the state’s contact recreation (bacteria) and high aquatic life (dissolved oxygen) use criterion. In response to these conditions, the TCEQ Total Maximum Daily Load Program in partnership with the San Antonio River Authority (SARA) have initiated a project to verify depressed dissolved oxygen and develop information necessary to support a bacterial (E. coli) Total Maximum Daily Load (TMDL) in the Lower Leon Creek, Segment 1906.

The specific objectives of the Leon Creek Segment 1906 TMDL for Dissolved Oxygen and Bacteria Impairments, TCEQ contract number 582-8-80193 are to: (1) Collect targeted 24 hour dissolved oxygen data in order to verify the water quality impairment and overall organic loading; (2) Collect targeted bacterial data in order to establish source of impairment and over loading; (3) Conduct modeling and assessment activities required to allocate loading; (4) Provide technical assistance to the TCEQ in the evaluation of actions necessary to achieve the recommended loading allocations, and; (5) Document, compile, and summarize technical analyses in reports to the TCEQ. There are two phases to this project; Phase I addresses dissolved oxygen deficiencies in Leon Creek, Phase II addresses excessive bacteria concentrations. Both phases will be conducted simultaneously.

Citizens are a crucial component of all water monitoring programs. We encourage citizens to become good stewards of water resources by being active in water quality issues. Watch for TMDL notices on the TCEQ website that indicate decisions are being made about water quality in your area and contribute information and your views.