A Geophysical Investigation of the Shallow Subsurface and Saltwater Intrusion in St. Catherines Island, GA

Learn about groundwater research conducted on St. Catherines Island, GA in this 15-minute conference presentation from the Georgia Water Resources Conference. Explore how electrical resistivity tomography (ERT) and ground penetrating radar (GPR) surveys were used to investigate saltwater intrusion in the island's shallow subsurface. Examine geophysical data and core logs that reveal previously unknown fractures, faults, and sag structures potentially acting as pathways for saltwater intrusion. Gain insights into the complex shallow groundwater system and discover why structural features promoting saltwater intrusion may be more prevalent along the Georgia coast than previously thought. Follow the investigation from introduction through methodology, data analysis, and conclusions, including details about the funding that supported this important environmental research.