Edwards Aquifer Protection Program
Anyone who plans to build on the recharge, transition, or contributing zones of the Edwards Aquifer must first have an application including construction plans approved by the TCEQ. Personnel from the Edwards Aquifer Protection Program review these plans. If a plan is approved, the site is monitored for compliance.
Some material posted here is in portable document format. (Help with PDF.)
Best Management Practices for Quarry Operations - RG-500- Technical Guidance Manual
- Spreadsheet for Permanent BMPs
- Maps
- About the Program
- Contact Us
- Sign up for E-mail Updates
Maps
The Edwards Aquifer regulated zones are present in eight Texas counties. The official boundaries were drawn on topographic base maps from the U.S. Geological Survey.
- Try our map viewer to view and print maps
- Experienced GIS users may download digital maps
- Where to obtain official recharge zone maps
- Maps of the major and minor aquifers of Texas are located at the Texas Water Development Board mapping page

Technical Guidance Manual
The revised publication Complying with the Edwards Aquifer RulesTechnical Guidance on Best Management Practices, RG-348, is available. We have identified some typographical errors in the manual. You may notify us of any other errors. We have also posted an addendum sheet that lists additional information that is approved for inclusion in the manual.
Applications received on or after December 1, 2005, must be in compliance with the revised manual. There is a spreadsheet for permanent BMPs that may be used for calculating the required load reduction and sizing for permanent BMPs.
About the Program
Find information about the history of state regulations to protect the aquifer, the latest rulemaking, and ways you can participate in the program.
- Optional Enhanced Measures for the Protection of Water Quality in the Edwards Aquifer
- Regulatory History of the Edwards Aquifer
- Edwards Aquifer Protection Program Public Comments
- Program Expense Report for 2010 (PDF)
- Program Expense Report for 2009 (PDF)
- Program Expense Report for 2008 (PDF)
- Program Expense Report for 2007 (PDF)
- Program Expense Report for 2006 (PDF)
- Program Expense Report for 2005 (PDF)
- Program Expense Report for 2004 (PDF)
- Program Expense Report for 2003 (PDF)
- Program Expense Report for 2002 (PDF)


