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Implementation Plan and Total Maximum Daily Load for Lake O' the Pines

The TMDL and its I-Plan are the road maps for activities to improve conditions for aquatic life in the lake.

Lake O' the Pines Lake O' the Pines Lake O' the Pines

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Project Location and Parameters Project Navigation TMDL Program Navigation

Watershed Counties: Cass, Harrison, Marion, Morris, Upshur
Parameter: Dissolved oxygen
River Basin: Cypress Creek
Segment: 0403

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Status and Activities

TMDL Projects


Implementation Plan

On July 9, 2008, the commission approved the I-Plan for Lake O’ the Pines.

Implementation Plan Revisions

In 2012, Texas Water Resources Institute (TWRI) began coordinating stakeholder involvement in a review of their implementation plan and its progress. Through a series of public meetings, TWRI worked closely with work groups and general stakeholders to revise the original implementation plan to continue their efforts in improving local water quality.

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Total Maximum Daily Load

On April 12, 2006, the commission adopted the TMDL for Lake O’ the Pines. It was approved on March 23, 2006 by the Texas State Soil and Water Conservation Board.

The EPA approved the TMDL on June 7, 2006, at which time it became part of the state’s Water Quality Management Plan.

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 WQMP updates and about opportunities to comment on revisions to them.

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For More Information

Please e-mail us at, and mention the Lake O’ the Pines project in the subject line. Or call us at 512-239-6682.

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