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I-Plan and TMDLs: Greater Trinity Region

The TMDLs and their I-Plan are the road maps for activities protecting recreation in area water bodies.

fishing at Lower West Oakland Lake Trinity River Segment 0841 at Collins Street heron on the Trinity River

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Project Location and Parameters Greater Trinity Project Navigation TMDL Program Navigation

Watershed Counties: Dallas, Tarrant
Parameter: Bacteria
River Basin: Trinity
Segments: 0805, 0806E, 0822A, 0822B, 0841, 0841B, 0841C, 0841E, 0841F, 0841G, 0841H, 0841J, 0841K, 0841L, 0841M, 0841N, 0841R, 0841T, 0841U, 0841V

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Status and Activities

Reports and Other Documents

TMDL Projects

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On this page:

Approved I-Plan

On December 11, 2013, the commission approved the I-Plan developed by the stakeholders.

The stakeholders last revised their I-Plan in June 2019. It includes water bodies added by resolution.

By resolution in June 2015, the stakeholder Coordination Committee added four tributary segments (0841F, 0841K, 0841N, and 0841V) of Mountain Creek Lake to this project.

By resolution in June 2018, the stakeholder Coordination Committee added Sycamore Creek, Segment 0806E, to this project.

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Adopted TMDLs

On the date of their approval by the Environmental Protection Agency (EPA), all these TMDLs become part of the state’s Water Quality Management Plan.

Cottonwood Branch and Grapevine Creek

On September 21, 2011, the TCEQ adopted the TMDLs for Cottonwood Branch and Grapevine Creek. The EPA approved them on May 30, 2012.

Updates

Updates are made to account for changing conditions in the watershed, such as new or revised wasteload allocations, permits that have been canceled or have expired, or changed facility names. Updates are made via the state's Water Quality Management Plan.

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Lower West Fork Trinity River

On September 24, 2013, the TCEQ adopted these TMDLs. The EPA approved them on November 7, 2013.

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Mountain Creek Lake Upstream Watersheds

On November 2, 2016, the commission adopted these TMDLs. The EPA approved them on December 7, 2016.

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Sycamore Creek

On January 16, 2019, the commission adopted this TMDL. The EPA approved it on March 27, 2019.

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Upper Trinity River

On May 11, 2011, the TCEQ adopted these TMDLs for the Upper Trinity River. The EPA approved them on August 3, 2011.

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For More Information

Please e-mail us at tmdl@tceq.texas.gov, and mention the Greater Trinity River plan 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