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Halls Bayou: A Community Project to Protect Recreational Uses

A project to reduce bacteria and protect recreational safety in Halls Bayou. The stakeholders and TCEQ are developing total maximum daily loads (TMDLs) and an implementation plan (I-Plan), which together will be the road map for improving water quality.
photo of Halls Bayou
Halls Bayou
Photo Courtesy of the
Houston-Galveston Area Council

Counties: Brazoria, Galveston
Parameter: Bacteria
Basins: Bays and Estuaries, San Jacinto-Brazos Coastal
Segment: 2432C
Assessment Unit (AU): 2432C_01

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Background and Goals

Halls Bayou Tidal (Segment 2432C, AU 2432C_01) is tributary of Chocolate Bay (Segment 2432), an embayment of West Galveston Bay. A tidal stream, Halls Bayou is 19.6 miles long and begins approximately six miles south-east of Alvin in Brazoria, with intermittent headwaters. The segment flows southeasterly past Halls Bayou Camp, briefly enters Galveston County, and then runs parallel to the Galveston County line into Halls Lake, through the Narrows, and into Chocolate Bay.

Since 2012, high concentrations of bacteria, which are found in both human and animal waste, have been observed in the bayou. The presence of these bacteria may indicate a health risk to people who swim or wade in the bayou—activities referred to as “contact recreation” in the Texas Surface Water Quality Standards.

The goal of this project is to improve water quality in order to protect recreational uses. Toward that goal, the TCEQ is developing TMDLs and an I-Plan to reduce bacteria in Halls Bayou.

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Get Involved

Staff from the Houston-Galveston Area Council (H-GAC) have been working with stakeholder communities, interest groups, and local organizations to distribute information about this project and involve stakeholders in developing the I-Plan for watershed improvement. All public meetings about this project are open to anyone interested. Watch for meeting announcements here.

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For More Information

Please send an e-mail to, and mention the Halls Bayou bacteria 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