Highland Lakes Watershed Ordinance

To reduce the impact of stormwater pollution, the ordinance requires development within the area to incorporate measures and best management practices to protect water quality and reduce creek erosion by requiring:

• Approved water quality management facilities (vegetated filter strips and/or water quality basins) to collect stormwater runoff.
• Buffer zones that remain free of development. Read the Property Owner’s Guide to Buffer Zones.
• Temporary erosion and sediment controls.
• Permanent systems to minimize sediment migration from the site.

LCRA encourages the use of native and adapted plants and discourages the use of chemicals on landscapes, which may have a negative impact on water quality.

Quarries and mines covered under the HLWO must implement measures similar to other development. Read the fact sheet.

Dredge and fill standards apply to activities such as:

• Shoreline stabilization.
• Retaining walls.
• Removal of sediment from lakebeds.

Small projects may be authorized without a permit by submitting a written notification and erosion/sediment control plan.

Submit questions, comments or complaints through Contact LCRA.

Read more information on the complaint process for this program. View 2020 complaint statistics.

Ordinance Documents

• Highland Lakes Watershed Ordinance
• Map of inspection regions and phone numbers of program staff
• Conservation landscaping stormwater credits
• Technical manual: Guide for engineers and developers
  • Section I – Development
  • Chapter 1 – Permitting Requirements and Procedures
  • Chapter 2 – Development Activity Meeting Water Quality Protection Performance Standards
  • Chapter 3 – Erosion and Sediment Control Best Management Practices
  • Chapter 4 – Development Activity Permanent Water Quality Treatment Best Management Practices
  • Chapter 5 – Permanent BMP Maintenance Guidelines
  • Chapter 6 – Development Activity Dredge and Fill Standards on the Highland Lakes
  • Section II – Quarry and Mine Activity
  • Chapter 1 – Permitting Requirements and Procedures
  • Chapter 2 – Meeting Water Quality Protection Performance Standards
• Download Excel worksheet to calculate water quality volume and the size of permanent water quality management features under the Highland Lakes Watershed Ordinance
• Dredge and fill standards
• HLWO Technical Manual Policy Bulletin – BMP Details
• Fee schedule

Erosion and Sediment Control Guidance

• Erosion prevention and sediment control field guide
• Erosion and sediment control for individual building sites
• Erosion and sedimentation control details
• Detalles de control de erosion y sedimentacion (Spanish version)