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Status and Activities: Implementing the TMDL for Gilleland Creek

What's going on and what's been done to reduce bacteria in Gilleland Creek and make it safe for recreation.
Gilleland Creek near railroad bridge LCRA training event for Gilleland Creek stakeholders Gilleland Creek landscape

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Project Location and Parameters Project Navigation TMDL Program Navigation
County: Travis
Parameter:  Bacteria
River Basin:  Colorado
Segment: 1428C

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Revising the I-Plan

Videos, News, Maps, and Photos

TMDL and Implementation Plan

Reports and Other Documents

TMDL Projects


The current Gilleland Creek Implementation Plan includes six management measures and one control action to reduce bacteria. Management measures are voluntary activities, such as restoring and improving riparian buffer zones. Control actions are regulatory activities, such as monitoring E.coli concentrations in WWTF effluent.

Management measures were selected based on feasibility, costs, support, and timing. Implementation tracking provides information that can be used to determine if progress is being made toward meeting goals of the TMDL. Tracking also allows stakeholders to evaluate actions taken, identify those actions which may not be working, and make any changes that may be necessary to get the plan back on target.

Stakeholders are currently working on revising the I-Plan.


The TCEQ coordinates annual follow-up meetings, providing opportunities for stakeholders to report on progress and changes in the watershed. At each meeting, stakeholders had positive reports of steps being taken toward water quality improvement.  

monitoring Gilleland Creek
  • 2011, First Year Implementing the Plan


On August 14, 2012, the Travis County Commissioners’ Court approved requirements to establish stream setbacks Adobe Acrobat PDF Document applicable to development in all unincorporated areas of the watershed.

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Gilleland Creek Stormwater Retrofit, 2014
The University of Texas modified a stormwater retention basin with the goal of reducing targeted pollutants by 50%. See photos of the basins.

Contact Us

Please e-mail us at tmdl@tceq.texas.gov, and reference the Gilleland Creek 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