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Lower Leon Creek: A Project to Assess Bacteria

A completed project to assess the extent of impairments due to bacteria in Lower Leon Creek
photo of Lower Leon Creek Below the site of Kelly Air Force Base
Lower Leon Creek

County: Bexar
Parameter: Bacteria
River Basin: San Antonio
Segment: 1906

Background and Goals

In Lower Leon Creek, concentrations of bacteria have been measured at levels that might pose a health risk for swimmers.

Bacteria from human and animal waste can indicate the presence of disease-causing microorganisms. People who swim or wade in the creek might be at risk. The state’s standards use the term contact recreation to refer to swimming or other recreational activities during which it is likely a person may ingest natural waters.

Learn more about water quality standards and management by reading the TCEQ’s publication Preserving and Improving Water Quality.

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Status

  • A two-year intensive effort to collect additional data was completed in 2010.
  • Review and analysis of the new data showed the creek is supporting its contact recreation use.
  • The TCEQ and the San Antonio River Authority will continue to monitor Leon Creek under the TCEQ’s Surface Water Quality Monitoring and Clean Rivers programs.

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Public Participation

Public participation is an important component of all TMDL projects. The TCEQ coordinated local involvement in this project through the San Antonio River Authority Exit the TCEQ with the help of the Bexar Regional Watershed Management Water Quality Focus Group, a public participation forum.

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For More Information

Please e-mail us at tmdl@tceq.texas.gov, and mention the Lower Leon Creek bacteria project in the subject line. Or call us at 512-239-6682.

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