We are a 501(c)(3) nonprofit organization that promotes effective broad-based advocacy for protection and preservation of the Edwards Aquifer, its springs, watersheds, and the Texas Hill Country that sustains it.
The Edwards Aquifer Ecosystem of Central Texas is one of our most valuable, irreplaceable and endangered public treasures. The EPA recognizes it as a “Sole Source” water supply. It is the only source of drinking water for millions of Texans.
It is our right and duty to preserve and protect the Aquifer, its contributing Hill Country watersheds, its great springs, and its native biodiversity for the benefit of all residents and all future generations. As individuals and community-based organizations, we invite everyone who shares the desire to preserve the Edwards Aquifer to join with us.
The Greater Edwards Aquifer Alliance has originated a comprehensive program of science, advocacy, and public engagement aimed at protecting the quality and quantity of spring flows from the Edwards and Trinity aquifers. We are in need of support to fund key projects that are currently underway.
GEAA will be actively participating in the 89th Legislative Session.
Our legislative agenda will
include the following priorities:
• Water Reuse
• Extraterritorial Jurisdictions
• County Authority
• Land Use and Housing Regulations
• Water Availability
• Texas Water Development Board Funding and Programs
The Greater Edwards Aquifer Alliance (GEAA) is excited to launch “Under Our Feet“, a new interactive website designed to promote better understanding and protection of the Edwards and Trinity aquifers and, especially, the Edwards Aquifer Recharge Zone that supplies water for over 1.5 million Texans.
Realizing that very few people understand what a marvelous resource we have in our uniquely prolific karst aquifer, GEAA designed this site to encourage everyone to love this mysterious underground landscape as much as we do. “Under Our Feet” provides users with an overview of the Edwards and Trinity aquifers, karst groundwater systems, the Edwards watershed landscape, risks facing the aquifer systems, how to protect karst aquifers, and how to stay involved. Users will discover which zone of the Edwards Aquifer they live in, what that means in the groundwater cycle, what risks the aquifer is facing, and what actions they can take to protect the Edwards Aquifer. The site uses interactive maps, links, infographics, and photos to provide an engaging experience for all users.
Adults will be encouraged to “Take the Pledge” to adopt habits and practices that will protect the Edwards spring-fed streams and keep our water supply healthy. Children can “Adopt a Blind Salamander“, one of the endangered species that lives under our feet and nowhere else.
Jan. 1, 2025 Express News Op Ed by Annalisa Peace. Developer’s plans for the Guajolote Ranch have the potential to pollute San Antonio’s water supplies by discharging sewage effluent into Helotes Creek. https://www.expressnews.com/opinion/commentary/article/lennar-edwards-aquifer-pollution-20001088.php
By: Joseph DeCarlo News4SA Nov. 20, 2024 https://news4sanantonio.com/news/local/edwards-aquifer-2025-legislative-agenda-released?fbclid=IwY2xjawGtwqFleHRuA2FlbQIxMAABHfKY-eO2ga0uxru8W6orK9iTXaw3CRD9otycbU7F3ARtu9SO4oliVPOqow_aem_InAxcaRonIm1FzdqOKRt_A GEAA’s policy director, Rachel Hanes discussed the release of our new 2025 Legislative Agenda in this News4SA video here. She stated “Last year was a really good year. We had the creation of the Texas Water Fund and voters across the state overwhelmingly approved that.” As explained in the video here, Rachel emphasized that the main threat to the Edwards Aquifer isn’t just the drought, but how quickly the population is growing.
San Antonio Report by Lindsey Carnett Nov. 2, 2024 As noted in the SA Report article here, property owners within the Camp Bullis “sentinel landscape” area have an exciting new funding opportunity. Since the only other place local landowners can currently receive funding to get a conservation easement comes from the city’s extremely limited Edwards Aquifer Protection Plan, GEAA is particularly happy about this grant! Details and the link for applications are available here: https://campbullisrcpp.nri.tamu.edu
Join the effort to ensure a billionaire’s private resort does not drain water from our public parks. We are urging everyone to learn about the plans for the luxury resort and exclusive subdivision-Mirasol Springs that promises “green” ecological features, however, the project includes a permit to pump up to 96,000 gallons per day out of the Pedernales River. During periods of peak pumping, the river’s level could drop by as much as four feet, reducing the swimming beaches at local
Jan. 1, 2025 Express News Op Ed by Annalisa Peace. Developer’s plans for the Guajolote Ranch have the potential to pollute San Antonio’s water supplies by discharging sewage effluent into Helotes Creek. https://www.expressnews.com/opinion/commentary/article/lennar-edwards-aquifer-pollution-20001088.php
By: Joseph DeCarlo News4SA Nov. 20, 2024 https://news4sanantonio.com/news/local/edwards-aquifer-2025-legislative-agenda-released?fbclid=IwY2xjawGtwqFleHRuA2FlbQIxMAABHfKY-eO2ga0uxru8W6orK9iTXaw3CRD9otycbU7F3ARtu9SO4oliVPOqow_aem_InAxcaRonIm1FzdqOKRt_A GEAA’s policy director, Rachel Hanes discussed the release of our new 2025 Legislative Agenda in this News4SA video here. She stated “Last year was a really good year. We had the creation of the Texas Water Fund and voters across the state overwhelmingly approved that.” As explained in the video here, Rachel emphasized that the main threat to the Edwards Aquifer isn’t just the drought, but how quickly the population is growing.
San Antonio Report by Lindsey Carnett Nov. 2, 2024 As noted in the SA Report article here, property owners within the Camp Bullis “sentinel landscape” area have an exciting new funding opportunity. Since the only other place local landowners can currently receive funding to get a conservation easement comes from the city’s extremely limited Edwards Aquifer Protection Plan, GEAA is particularly happy about this grant! Details and the link for applications are available here: https://campbullisrcpp.nri.tamu.edu
Join the effort to ensure a billionaire’s private resort does not drain water from our public parks. We are urging everyone to learn about the plans for the luxury resort and exclusive subdivision-Mirasol Springs that promises “green” ecological features, however, the project includes a permit to pump up to 96,000 gallons per day out of the Pedernales River. During periods of peak pumping, the river’s level could drop by as much as four feet, reducing the swimming beaches at local
New Report released by GEAA’s Policy Director, Rachel Hanes. May 2024. The Greater Edwards Aquifer
Educational DVD produced by GEAA in association with KLRN and funded by Boeing.
This manual offers an integrated approach to storm water management for the Edwards Aquifer to
A detailed map pf the Edwards Aquifer plus a Guide to Appreciation and Conservation of
Water: Yours, Mine, and Ours was produced through an EPA Nonpoint Source Pollution project of
An Overview and Assessment of Current Regulatory Agency Processes. Click to view report
This white paper discusses the use of green spaces for soil water storage and carbon
Learn how to protect and increase soil organic matter with the information created by GEAA’s
Below is our position paper and recommendations for improving stormwater management in San Antonio. You
Here are images that GEAA would like to use for our new nonprofit educational project:
Building on efforts from a previous group of Texas State students from Dr. Yihong Yuan’s
Date: May 16, 2022 A team of four students from Dr. Yihong Yuan’s Geographic Information
Spills Around the Edwards Aquifer Region. Click to see interactive map
Final Report-TCEQ Region 11 – Aquifer Resource Innovators
This report examines existing evidence that wastewater effluent discharged in the Barton Springs and San
Previously, a Texas State GIS Design and Implementation project had been conducted on the visualization
An analysis of Wasterwater Spills In the Edwards Aquifer Recharge Zone, with focus on sewage
In order to aid in the protection of the aquifer, this project has two main
New Report released by GEAA’s Policy Director Rachel Hanes. September 2023 The Greater Edwards Aquifer
WE ARE HIRING: Natural Resource Project Manager
