Upper Oyster Creek: Implementing TMDLs to Protect Aquatic Life and Recreational Uses
Counties: Fort Bend
Parameters: Bacteria, dissolved oxygen
River Basin: Brazos River
- Project Overview
- Background and Goals
- Get Involved
- Approved Implementation Plan
- Adopted TMDLs
- Reports and Other Documents
- For More Information
Background and Goals
Upper Oyster Creek is located within the Brazos River Basin, immediately southwest of Houston in northern Fort Bend County. Segment 1245, though named Upper Oyster Creek, also includes parts of Jones Creek, Oyster Creek, Flat Bank Creek, a diversion canal, and Steep Bank Creek. Upper Oyster Creek has been highly modified, and serves as a portion of a water conveyance system for the Gulf Coast Water Authority.
Water quality testing found that bacteria levels in Upper Oyster Creek might pose a health risk for swimmers. Low dissolved oxygen concentrations in some areas of the creek indicate that conditions are not optimal for aquatic life.
The TMDL Program is working with area stakeholders to develop a plan to improve water quality in the creek. The goal of the project is to reduce bacteria concentrations to within acceptable risk levels for swimmers, and improve conditions to support a healthy aquatic community.
Recreational Use Attainability Analysis
The TCEQ Standards Team is also working in the watershed on a Recreational Use Attainability Analysis (RUAA) for the Fort Bend County area of the watershed. See information about the RUAA on our website, or at contact our Standards Team by e-mailing email@example.com or calling 512-239-6682.
The Houston-Galveston Area Council is coordinating public participation related to implementation of the TMDLs. Meeting records about the implementation plan and annual reports on implementation progress are available on their Upper Oyster Creek TMDL Implementation website . Meetings about the project are open to everyone.
Approved Implementation Plan
The commission approved this stakeholder-developed plan on January 15, 2014.
- Implementation Plan for Two Total Maximum Daily Loads for Dissolved Oxygen and One Total Maximum Daily Load for Bacteria in Upper Oyster Creek
- Response to Public Comment on the I-Plan
Dissolved Oxygen TMDLs
On July 28, 2010, the commission adopted the TMDLs for dissolved oxygen.
- Two Total Maximum Daily Loads for Dissolved Oxygen in Upper Oyster Creek, Segment 1245
- Response to Public Comment on TMDLs for Dissolved Oxygen
The EPA approved the TMDL on September 21, 2010, at which time it became part of the state’s Water Quality Management Plan.
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.
- April 2016, Appendix VII, pages 22-23
- April 2015, Appendix VII, pages 35-36
- October 2013 Update, Appendix V, p. 50
- January 2012, Appendix VIII, pages 36-37
The commission adopted this TMDL for bacteria on August 8, 2007.
- One TMDL for Bacteria in Upper Oyster Creek, Segment 1245
- Response to Public Comment on the TMDLs for Bacteria
The EPA approved the TMDL on September 28, 2007, at which time the TMDLs became part of the state’s Water Quality Management Plan.
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.
- April 2016, Appendix VI, pages 19-21
- April 2015, Appendix VI, pages 33-34
- October 2013 Update, Appendix IV, p. 48
- January 2012, Appendix VII, pages 34-35
- July 2011, pages 10 & 30
- April 2010, pages 9 & 18
- January 2009, pages 10-12
- July 2008, pages 7-9
- April 2008, pages 12-14
Reports and Other Documents
- Model files (ZIP) for dissolved oxygen in the upper reach (right-click to download the ZIP archive)
- Addendum to Upper Oyster Creek Dissolved Oxygen TMDL Technical Support Document (October 14, 2008)
- Upper Oyster Creek Dissolved Oxygen TMDL Technical Support Document (February 2008)
- Upper Oyster Creek Dissolved Oxygen Assessment (Updated April 6, 2007)
- Technical Support Document: Upper Oyster Creek Bacteria TMDL
- Report (November 2006)
- Appendix A: Fecal Coliform and E. coli Data
- Appendix B: Photographs of Upper Oyster Creek BST Stations
- Appendix C: Ribotyping Protocol
- Appendix D: Fecal Sampling Collection Summary Table
- Appendix E: BST E. coli Quantification Data
- Appendix F: Ribotyping Results for E. coli
- Appendix G: Detailed E. coli Source Characterization by Station
- Appendix H: Model Predicted Streamflow and Measured E. coli Data Used in Developing Load Duration Curves
- Final Monitoring Report for Bacterial Source Tracking
For More Information
Please e-mail us at firstname.lastname@example.org, and mention the Upper Oyster Creek project in the subject. Or call us at 512-239-6682.