County: Dallas and Tarrant
Parameter: Bacteria
River Basin: Trinity
Segment: 0822A, 0822B
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Grapevine Creek
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Background and
Goals
High concentrations of bacteria have been observed in Grapevine
Creek (Segment 0822B) and Cottonwood Branch (Segment 0822A). High
concentrations of bacteria may pose a health risk to people who
swim or wade in them—activities called “contact
recreation” in the state’s standards for water
quality.
Grapevine Creek and Cottonwood Branch are tributaries to the Elm
Fork of the Trinity River (Segment 0822). To varying degrees, these
segments are affected by storm water runoff from agricultural,
industrial, and urban areas.
The goal of this project is to reduce bacteria concentrations to
within acceptable risk levels for contact recreation, through
development of total maximum daily loads. A TMDL is like a budget
for pollutants. It determines the amount of a pollutant that a
water body can receive and still support its designated uses. The
load is then allocated among the sources of pollution within the
watershed, and measures to reduce pollutant loads are developed as
necessary. A TMDL becomes part of the state’s Water Quality
Management Plan after it is adopted by the commission and approved
by the U.S. Environmental Protection Agency.
Public
Participation
Project personnel are informing the public about these TMDLs
through public meetings and notices in print and electronic media.
The meetings are open to everyone.
No meetings are currently scheduled.
Project Documents
The following documents are available in PDF. Help with PDF.
For More Information
Contact Dania Grundmann at 512-239-3449. Or e-mail us at tmdl@tceq.state.tx.us, and
reference the Cottonwood Branch TMDL in the subject line.
