Thanks to UGA Professors Jaivime Evaristo (isotope data) and Todd Rasmussen (water levels) for reviewing their two lines of evidence that the Okefenokee Swamp leaks through the underlying limestone into the Upper Floridan Aquifer.
This webinar explains their recent scientific paper on this subject.
Note that this means that nearby water withdrawals draw more water down from the Swamp into the Aquifer.
This paper is more incentive to pass Georgia House Bill 561 to protect the Okefenokee Swamp from mining, at least on its east side.
Georgians, please ask your statehouse delegation to pass HB 561.
Floridians, please ask your Georgia friends and relatives to do the same.
Here’s how to contact Georgia Statehouse members:
Hahira, Georgia, January 12, 2026 —
For thirty years it was suspected that the Okefenokee Swamp leaks water into the groundwater from which we all drink.
Now we have much stronger evidence, that the Swamp leaks not a little but a lot of water into the Floridan Aquifer.
At noon by zoom this Thursday, you can watch
the UGA professors who published it explain that evidence.
They will also mention some consequences, such as nearby water withdrawals
pull more water from the Swamp into the Aquifer.
Lead author Prof. Jaivime Evaristo will explain the isotope evidence.
Prof. Todd Rasmussen will explain the water level evidence.
This paper is more incentive to pass Georgia House Bill 561 to protect the Okefenokee Swamp from mining, at least on its east side.
Georgians, please ask your statehouse delegation to pass HB 561.
Floridians, please ask your Georgia friends and relatives to do the same.
Here’s how to contact Georgia Statehouse members:
UGA Professors Jaivime Evaristo (isotope data) and Todd Rasmussen (water levels) review
two lines of evidence that the Okefenokee Swamp leaks through the underlying limestone into the Upper Floridan Aquifer, and nearby water withdrawals draw more down.
This WWALS Webinar by zoom at noon will explain their recent scientific paper on this subject.
This paper is more incentive to pass Georgia House Bill 561 to protect the Okefenokee Swamp from mining, at least on its east side.
Georgians, please ask your statehouse delegation to pass HB 561.
Floridians, please ask your Georgia friends and relatives to do the same.
Here’s how to contact Georgia Statehouse members:
Veronica Kelly-Summers, a dedicated Visitor Services Manager with
Okefenokee National Wildlife Refuge,
talked about the Okefenokee Swamp, its history, significance, places to go, things to do, and what’s next,
in this largest and best-preserved freshwater wetland in the U.S.
The Swamp is the headwaters of two rivers: the St. Marys that forms the border between Georgia and Florida,
and the Suwannee, which flows through Georgia and the Florida state song.
Here is the WWALS video of Veronica’s webinar, from noon-1 PM, Thursday, September 11, 2025:
https://youtu.be/pvLU8wPLsZc
The WWALS
campout at Floyd’s Island
in the middle of the Okefenokee Swamp
has unfortunately been cancelled due to low water.
So you can watch Veronica’s presentation instead.
WWALS Board Member Janet Martin gave a brief introduction.
In questions and answers at the end,
Veronica elaborated on what it means
for the Okefenokee NWR to become a World Heritage Site:
more visibility, more visitors, but no additional federal funding.
Veronica Kelly-Summers is a dedicated Visitor Services Manager with
over 15 years of experience in protecting natural resources and
connecting people with nature. She holds a bachelor’s and master’s
degree in forestry from Southern Illinois University with a focus on
forest recreation and wildlife habitat management. Her career with
the U.S. Fish and Wildlife Service has taken her to eight national
wildlife refuges from the woods and swamps of southern Illinois to
the Loess Bluffs of Iowa and Missouri, the Florida Everglades, and
she’s now stationed at Okefenokee National Wildlife Refuge in
Georgia. She works closely with staff and partners to provide
leadership and strategic direction for the Visitor Services program
including managing visitor facilities and recreational opportunities
for camping, boating, interpretation, environmental education,
special events, outreach, hunting, fishing, managing volunteers, and
much more. When not at work, she enjoys spending time with her
husband, Jacob, and their pets, a yellow lab named Charlie and a
spicy tuxedo cat named Tino.
Discover all that Okefenokee National Wildlife Refuge has to offer in our upcoming presentation focused on things to see and do around the 407,000-acre national wildlife refuge. From camping under the stars to paddling scenic water trails, the refuge is a haven for outdoor enthusiasts. Learn about wildlife watching ethics, areas for hiking and biking, guided boat tours, overnight excursions, hunting and fishing opportunities, and so much more. Whether you’re seeking outdoor adventure or a peaceful connection with nature, this presentation will showcase how Okefenokee has something for everyone.
Veronica Kelly-Summers is a dedicated Visitor Services Manager with
over 15 years of experience in protecting natural resources and
connecting people with nature. She holds a bachelor’s and master’s
degree in forestry from Southern Illinois University with a focus on
forest recreation and wildlife habitat management. Her career with
the U.S. Fish and Wildlife Service has taken her to eight national
wildlife refuges from the woods and swamps of southern Illinois to
the Loess Bluffs of Iowa and Missouri, the Florida Everglades, and
she’s now stationed at Okefenokee National Wildlife Refuge in
Georgia. She works closely with staff and partners to provide
leadership and strategic direction for the Visitor Services program
including managing visitor facilities and recreational opportunities
for camping, boating, interpretation, environmental education,
special events, outreach, hunting, fishing, managing volunteers, and
much more. When not at work, she enjoys spending time with her
husband, Jacob, and their pets, a yellow lab named Charlie and a
spicy tuxedo cat name Tino.
Dennis Price, P.G., of Hamilton County, Florida, says, “I plan on going through the history of surface and ground water in the flatwoods in south Georgia and north Florida in the Suwannee River Basin.
Historic water levels and how we have changed these levels. Changes beginning with forestry then farming, and population growth.
Ideas for correcting the problems.”
This applies to the Floridan Aquifer proper and the other aquifers above it,
all below the Suwannee, Alapaha, and Withlacoochee Rivers, the Okefenokee Swamp, and their tributaries.
Update This class will be ALL in person at John W. Saunders Park, Pavilion #3.
You can learn how to help test water quality in the Suwannee River Basin.
WWALS testing trainer Gretchen Quarterman will do the classroom portion of the course by zoom,
followed by hands-on practical training at a waterway with physical distancing.
will teach both chemical and bacterial training in person. There is a classroom portion with demonstration, followed by practical and test for each class. Classroom materials will be provided. The tests are on paper and are to be taken on-site.
This is both Chemical and Bacterial training by Georgia Adopt-A-Stream (AAS) methods.
Yes, we can and do use this in Florida as well as Georgia,
and we have testers based in Florida.
You can learn how to help test water quality in the Suwannee River Basin.
WWALS testing trainer Gretchen Quarterman will do the classroom portion of the course by zoom,
followed by hands-on practical training at a waterway with physical distancing.
This is both Chemical and Bacterial training by Georgia Adopt-A-Stream (AAS) methods.
Yes, we can and do use this in Florida as well as Georgia.
We currently have testers on the Little, Withlacoochee, Alapaha, Ichetucknee, and Santa Fe Rivers.
We need more of those, and also for the Alapahoochee and Suwannee Rivers,
as well as Cat Creek, Beatty Branch, Sugar Creek, and especially Okapilco Creek and Crooked Creek, plus others.
![[Video: Okefenokee Swamp leaks into the Floridan Aquifer, peer-reviewed evidence, WWALS Webinar 2026-01-15]](https://www.wwals.net/pictures/2026-01-15--okefenokee-into-aquifer-webinar-pictures/fbmany.jpg)
![[Okefenokee Swamp leaks into the Floridan Aquifer, WWALS Webinar 2026-01-15, Prof. Evaristo & Rasmussen]](https://www.wwals.net/pictures/2026-01-15--okefenokee-into-aquifer-webinar/fbmany.jpg)
![[Okefenokee Swamp by Veronica Kelley-Summers, a WWALS Webinar by Zoom, 2025-09-11]](https://www.wwals.net/pictures/2025-09-11--okefenokee-swamp-webinar-video/fbmany.jpg)
![[Explore the Okefenokee NWR, Veronica Kelley-Summers, a WWALS Webinar by Zoom, Thursday, September 11, noon-1 PM]](https://www.wwals.net/pictures/2025-09-11--okefenokee-swamp-unique-headwaters/many.jpg)
![[How Humans Affect the Aquifer, a WWALS Webinar 2025-06-19, in north Florida and south Georgia, by Dennis J. Price P.G.]](https://www.wwals.net/pictures/2025-06-19--aquifer-dennis-price-webinar/fbmany.jpg)
![[WWALS Georgia Adopt-A-Stream Testing Training 2024-02-10]](https://www.wwals.net/pictures/2024-02-10--wq-testing-training/igmany.jpg)
![[Map and table, Georgia AAS]](https://www.wwals.net/pictures/2022-09-10--wq-testing-training/map-table.jpg)