
The Recharge Zone Podcast
The Recharge Zone Podcast is the official podcast for the Edwards Aquifer Authority (EAA), a regional water management agency, which protects the portion of the Balcones Fault Zone Edwards Aquifer – a jurisdictional area that provides water to over 2 million people, and covers more than 8,000 square miles across 8 counties! Tune in to charge up your knowledge on all things Edwards Aquifer from the EAA.
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Podcast Episodes

Will Berm and Swales be Winning Water Retention Practices on the Recharge Zone?
Hosts Brent Doty and Ann-Margaret Gonzalez speak with EAA Executive Director of Aquifer Management Services, Mark Hamilton, about long-term research for groundwater systems, surface water systems, and soil and land management practices out at the 151-acre EAA Field Research Park located in the Cibolo Creek Basin on the Edwards Aquifer Recharge Zone.
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What’s in store for the EAA?
Hosts Brent Doty and Ann-Margaret Gonzalez speak with EAA General Manager, Roland Ruiz, as he further expands on the Next Generation initiative as a way to broaden the EAA’s opportunity to partner and collaborate, discusses a land management demonstration site that is underway at the EAA Field Research Park, and highlights the future EAA Education Outreach Center at Morgan’s Wonderland Camp.
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What Exactly is Aquifer Modeling?
On this episode, hosts Brent Doty and Ann-Margaret Gonzalez speak with Jim Winterle, EAA Director for Modeling, about aquifer modeling in which water well pumping and aquifer recharge data collected from over the past 80 years is used to simulate outputs like the springflows at Comal and San Marcos Springs or the water levels at index wells J-17 in Bexar County and J-27 in Uvalde County. Learn how aquifer models play an important role in the implementation of water conservation measures and protection for the Edwards Aquifer not only as a habitat, but as a water supply for over 2 million South Central Texans.
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Catfish, Salamanders, Amphipods, oh my!
Did you know? The underwater world of the Edwards Aquifer has predator species, some endangered, that dwell in the dark depths that are found nowhere else in the world? Also, discover the innovative way the Edwards Aquifer Habitat Conservation Plan is reducing the presence of the invasive, armored suckermouth catfish in San Marcos River/ Springs Aquatic Ecosystem. Learn all about these species on this episode where hosts Ann-Margaret and Brent interview Kristy Kollaus, EAA Environmental Scientist.