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San Jacinto-Brazos Coastal Basin Watersheds: Protecting Recreational Uses

The goal of this current project is to make recreation safer by reducing bacteria levels in waterways of the San Jacinto–Brazos Coastal Basin.
map of San Jacinto-Brazos Coastal Basin watersheds

San Jacinto–Brazos Coastal Basin Watersheds
Click the map for a larger version


High bacteria concentrations can indicate a health risk to people who swim or wade in natural waters—called “contact recreation” in the state’s standards for water quality, the term refers to all recreation in which people are likely to swallow natural waters.

The Houston-Galveston Area Council is working on behalf of the TCEQ with local stakeholders to develop watershed-based strategies that will reduce bacterial pollution and improve water quality in waterways of the San Jacinto–Brazos Coastal Basin.

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Get Involved

The Houston–Galveston Area Council (H–GAC) is coordinating public participation in improving the San Jacinto–Brazos Coastal Basin watersheds.

Watch for meeting announcements here and on the H–GAC website Exit the TCEQ.

Updated Information Next Meeting

January 29, 2019
2:00 - 4:00 p.m.

Brazoria County Public Library-Lake Jackson Branch
250 Circle Way
Lake Jackson 77566

Stakeholders will discuss formation of a coordinating committee to oversee a bacteria reduction plan for Oyster Creek and the steps involved in developing a watershed plan.

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About the Watershed

Location: South of the Houston–Galveston Area on the Texas Coast

Counties: Brazoria, Fort Bend, Galveston, and Harris

Basin: San Jacinto–Brazos Coastal (Basin 11)

This basin covers about 1,440 square miles, and includes all or a portion of 50 cities and villages, and four counties. The coastal plain between the San Jacinto River and the Trinity River forms the basin. Most of the streams drain into Galveston Bay.

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Waterways of Focus

Activities will focus on waterways where bacteria concentrations exceed standards, with an eye toward broader solutions for the entire watershed.

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Contact Us

Please e-mail us at tmdl@tceq.texas.gov, and mention the San Jacinto–Brazos Coastal Basin project in the subject line. Or call us at 512-239-6682.

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communities working together taking care of our rivers, lakes, and bays