Upper San Antonio River: A TMDL Project to Protect Recreational Uses
San Antonio River
Watershed Counties: Bexar, Karnes, Wilson
Basin: San Antonio River
Segments: 1910, 1910A, 1911
- Project Overview
- Background and Goals
- Adopted TMDLs
- Implementation Plan
- Get Involved
- Reports and Other Documents
- For More Information
Background and Goals
The goal of this current project is to reduce bacteria levels in parts of the San Jacinto River, making them safer for recreation. High levels of bacteria may pose a risk to people who swim or wade in them—activities called “contact recreation” in the state's standards for water quality.
The stream segments included in the project are Salado Creek (Segment 1910), Walzem Creek (Segment 1910A), and the Upper San Antonio River (Segment 1911). Texas AgriLife Research and the San Antonio River Authority (SARA) are key partners in this project.
The commission adopted these TMDLs on July 25, 2007.
- Three TMDLs for Bacteria in the San Antonio Area , Segments 1910, 1910A, and 1911
- Response to Public Comment
The EPA approved them on September 25, 2007, at which time they became part of the state's Water Quality Management Plan.
Updates to TMDLs
From time to time, it is necessary to revise TMDLs to account for changing conditions in the watershed, such as new or amended permits, or urban growth, or to correct oversights in the original TMDL report. Revisions to the load allocations in TMDLs are made via the state’s 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.
Revisions to the TMDL are documented in the approved WQMP updates listed below.
The TCEQ and Texas AgriLife are working with stakeholders to develop an I-Plan for the project watersheds.
- I-Plan Summary Facts (June 2013)
The I-Plan will complement the watershed protection plan (WPP) for the Upper San Antonio River. The WPP, now being updated, was originally developed by SARA in 2007, together with stakeholders, the City of San Antonio, Bexar County, and other partners. The WPP was developed to allow early implementation of measures to reduce pollution; environmental improvement targets were based on data and information in the TMDL report. on the SARA website.
In all our projects, we seek opinions and information from stakeholders—people who represent government, permitted facilities, agriculture, business, environmental, and community and private interests in the watershed.
All stakeholders are welcome to get involved in developing the strategy to improve water quality. Public meetings about the project are open to everyone.
Implementation Plan Development
Texas AgriLife is coordinating with people in the watershed to develop the I-Plan. A coordination committee representing diverse interests will develop the plan.
Everyone is welcome to participate in this project to improve the river. Meetings about the project are open to anyone interested.
At this public meeting, the Technical Subcommittee of the stakeholder Coordinating Committee will discuss steps for moving forward in developing their plan to improve the safety of contact recreation by reducing bacteria concentrations in the river.
March 20, 2014
2:00 – 5:00 p.m.
San Antonio Water System
Tower II , Customer Service Center
2800 U.S. Highway 281 North
San Antonio 78298
At this public meeting, the Coordinating Committee will discuss their progress toward developing a plan to improve the safety of contact recreation by reducing bacteria concentrations in the river.
March 27, 2014
1:00 – 4:00 p.m.
San Antonio River Authority
100 East Guenther Street
San Antonio 78204
- October 17, 2013 Meeting
- Draft Meeting Summary
- Spreadsheet: Results from Key Stations
- Map: Monitoring data, Bexar and Wilson counties
- Map: Monitoring data, Bexar County
- Map: Monitoring Data, Wilson County
October 3, 2013 Meeting
Meeting Records, TMDL Development
A stakeholder committee called the San Antonio Bacteria TMDL Advisory Group assisted the TCEQ in developing the TMDLs. The group included volunteer members who represented government, permitted facilities, agriculture, business, environmental, and community interests.
Advisory Group Meeting Summaries and Presentations
The following documents are provided in PDF.
Reports and Other Documents
The following documents are provided in PDF.
- Upper San Antonio River Watershed Protection Plan , December 2006 (update in progress)
- Inventory of Implemented Best Management Practices in the 2006 Watershed Protection Plan
- BMP Summary Report , September 2012
- Site-Specific BMP Assessment , May 2013
- Subwatershed-Specific BMP Assessment , June 2013
For More Information
Please e-mail us at email@example.com, and mention the Upper San Antonio River Bacteria TMDL in the subject line. Or call us at 512-239-6682.