Water Resources Research Act Program

Details for Project ID GA_2025_Evaristo

Multi-Tracer Investigation of Hydraulic Connectivity between the Okefenokee Swamp and the Upper Floridan Aquifer

Institute: Georgia
Year Established: 2025 Start Date: 2026-01-01 End Date: 2026-12-31
Total Federal Funds: $20,000 Total Non-Federal Funds: $20,000

Principal Investigators: Jaivime Evaristo

Project Summary: This study investigates whether water from the Okefenokee Swamp flows into the underground Upper Floridan Aquifer?a key source of drinking water for communities in southern Georgia and northern Florida. While past studies hinted at a possible connection, no one has directly compared the swamp's water with nearby groundwater using modern scientific tools. This project will collect water samples from the swamp, nearby rivers, and underground wells, and test them for natural ?tracers? like stable isotopes, gases, and chemicals. These tracers help reveal where the water came from and how long it's been underground. Early results suggest swamp water may already be entering the aquifer. Confirming this connection would help scientists and water managers better understand how the aquifer gets replenished and how to protect it. This knowledge is important for managing water use, protecting the swamp, and ensuring a clean and sustainable water supply for future generations.