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TCEQ and TWRI outline monitoring ramp‑up and TMDL work as bacteria remain a concern in East Texas creeks

Angelina and Neches River Authority (ANRA) Steering Committee · August 8, 2025
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Summary

Presenters from TCEQ and the Texas Water Resources Institute said bacteria impairments in several basin tributaries are delivered mainly by rainfall runoff, noted models require substantial reductions (roughly 61%–95%) to meet state thresholds, and described new monitoring projects and an in‑house TMDL initiative amid recent funding cuts.

State and university officials reported monitoring updates and planned TMDL work for several impaired creeks in the Angelina/Neches basin, and described next steps to better characterize sources and implement remedies.

Shay Postma, research specialist with the Texas Water Resources Institute, summarized the TMDL process and monitoring results, telling the group, “The results of the report found that bacteria in both watersheds is primarily delivered by rainfall runoff rather than wastewater discharges.” She said modeling suggests bacteria sources will need to be reduced by roughly 61%–95% for streams to meet the state geometric‑mean threshold.

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