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North Bosque River: Implementing a TMDL to Protect General Uses

A project to improve water quality by developing and implementing TMDLs. The TMDLs are adopted and the I-Plan is approved; together, they provide the road map to improved water quality.

Counties: Bosque, Erath, Hamilton, and McLennan
Parameter: soluble reactive phosphorus
River Basin: Brazos River
Segments: 1226, 1255

Background and Goals

The North Bosque River and Waco Lake, formed by an impoundment of the Bosque River, serve as the primary drinking water supplies for more than 200,000 people in the Waco area. Water quality testing found high levels of nutrients in the North Bosque that have contributed to excessive growth of algae and other aquatic plants in the river. This TMDL project addresses the elevated levels of phosphorus (the limiting nutrient in the watershed).

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Status and Activities

Status of TMDL Implementation and Water Quality: September 1, 2020 Stakeholders Meeting

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Get Involved

In all our projects, we seek opinions and information from people who represent government, permitted facilities, agriculture, business, environmental, and community and private interests in the watershed. A committee called the Bosque River Stakeholder Advisory Group was established to advise the TCEQ on development of the TMDLs and I-Plan. The last planned meeting of the named Advisory Group was in August 2002.

Current membership in the North Bosque River TMDL stakeholders group is open and voluntary. Please email louanne.jones@tceq.texas.gov to be added to TCEQ's stakeholders email group.

North Bosque River TMDL Work Group

TCEQ held an open stakeholders meeting in September 2020 to assess progress in the watershed. At the suggestion of the stakeholders, TCEQ has formed a small work group to recommend next steps for this watershed. Membership of the North Bosque River TMDL Advisory Work Group is made up of volunteers from among the general stakeholder group. Membership in the work group is closed, but its meetings are open to the public. Watch here for meeting announcements. 

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Adopted TMDLs

The commission adopted these TMDLs on February 9, 2001.

The EPA approved these TMDLs on December 13, 2001, at which time they became part of the state's Water Quality Management Plan.

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Updates to TMDLs

From time to time, it is necessary to revise TMDLs to account for changing conditions in the watershed, such as new or amended permits, or urban growth, or to correct oversights in the original TMDL report. Revisions to the load allocations in TMDLs are made via the state’s WQMP, which is updated quarterly.

The WQMP provides projected effluent limits for use in planning and permitting activities under the Texas Pollutant Discharge Elimination System (TPDES). The TCEQ reviews all applications for new and amended permits for conformance with applicable portions of the WQMP, including adopted TMDLs.

Revisions to the TMDL are documented in the approved WQMP updates listed below.

Learn more about the Water Quality Management Plan.

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Implementation Plan

The commission approved the implementation plan on December 13, 2002. The Texas State Soil and Water Conservation Board approved it on January 16, 2003.

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Reports

For older or mid-year reports, go to TIAER's online publications searchExit the TCEQ and search in the title block for "Bosque River."

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For More Information

Please e-mail us at tmdl@tceq.texas.gov and mention the North Bosque River 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