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TMDLs and Implementation Plan: Greater Trinity Region

The TMDL and its I-Plan are the road maps for activities keeping the river segment safe for recreation.
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


On this page:

Hot Topic Comment on Proposed Sycamore Creek TMDL

The public is invited to comment on the proposed TMDL for bacteria in Sycamore Creek. You may submit your comments in writing, or orally at a public meeting. If adopted, the stakeholders propose to implement the Sycamore Creek TMDL under the Greater Trinity River Region I-Plan.

Supporting Documents:

Submit Comments in Writing

Written comments must be received at the TCEQ no later than midnight on July 9, 2018, and should reference One TMDL for Bacteria in Sycamore Creek.

By Mail:
Attn: Dania Grundmann
Water Quality Planning Division
Texas Commission on Environmental Quality
MC 203
P. O. Box 13087
Austin, Texas, 78711-3087

By Fax:
Attn: Dania Grundmann

Online at:
www6.tceq.texas.gov/rules/ecomments/ from June 8, 2018 through July 9, 2018.

Submit Comments at a Public Meeting

The TCEQ has scheduled a public meeting to receive comments on the proposed TMDL:

June 26, 2018
6:00 p.m.
Ella Mae Shamblee Library
Shamblee Library Meeting Room
1062 Evans Avenue
Fort Worth 76104

At this meeting, people have the opportunity to present oral statements when called upon in order of registration. An agency staff member will give a brief presentation at the start of the meeting and will be available to answer questions before and after all public comments have been received.

Persons with disabilities who have special communication or other accommodation needs who are planning to attend the meeting should contact the commission at (512) 239-6682. Please make accommodation requests as far in advance as possible.

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Approved I-Plan

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

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.

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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 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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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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Contact Us

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