Georgia Water Science Center
This report is available online in pdf format (4 MB): USGS OFR 2008-1297 (
)
Gregory S. Cherry and John S. Clarke
U.S. Geological Survey Open-File Report 2008-1297, 42 pages (Published September 2008)
The Upper Floridan aquifer is contaminated with saltwater
in a 2-square-mile area of downtown Brunswick, Georgia.
This contamination has limited the development of the ground-water supply in the Glynn County area. Hydrologic, geologic, and water-quality data are needed to effectively manage water resources. Since 1959, the U.S. Geological Survey has conducted a cooperative water-resources program with the City of Brunswick to monitor and assess the effect of ground-water development on saltwater contamination of the Floridan aquifer system. The potential development of alternative
sources of water in the Brunswick and surficial aquifer systems also is an important consideration in coastal areas.
During calendar year 2007, the cooperative water-resources monitoring program included continuous water-level recording of 13 wells completed in the Floridan, Brunswick, and surficial aquifer systems; collecting water levels from 22 wells to map the potentiometric surface of the Upper Floridan aquifer during July and August 2007; and collecting and analyzing water samples from 76 wells to map chloride concentrations in the Upper Floridan aquifer during July and August 2007. In addition, work was initiated to refine an existing ground-water flow model for evaluation of water-management scenarios.
Abstract
Introduction
Brunswick–Glynn County Cooperative Water Program
Purpose and Scope
Related Studies
Acknowledgments
Ground-Water Conditions
Ground-Water Levels
Factors Influencing Ground-Water Levels
Precipitation
Ground-Water Pumpage
Surficial Aquifer System
Brunswick Aquifer System
Floridan Aquifer System
Chloride Concentrations
Upper Floridan Aquifer
Surficial and Brunswick Aquifer Systems
Real-Time Monitoring of Specific Conductance and Water Levels
Ground-Water Studies
Reports and Technical Presentations
Selected References
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