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USGS IN YOUR STATE

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Groundwater Monitoring in the Albany Area

Project Number: 2503-0021S
Project Chief: Debbie Warner Gordon
Cooperator: Albany Water, Gas, and Light Commission
Year started: 1977

Progress and Significant Results, 2006—2007

• Continued operation of the 14-well continuous groundwater-level monitoring network in the surficial, Upper Floridan, Claiborne, Clayton, and Providence aquifers.
• Continued groundwater-quality monitoring program. Water samples were collected and analyzed for cations, anions, and nutrients during November 14–16, 2006 (14 wells), and October 15–18, 2007 (12 wells).
• Constructed potentiometric-surface maps for the Upper Floridan aquifer near the well field based on measurements from 64 wells during October 16–24, 2006, and 60 wells during October 23–25, 2007. Both maps indicate that water generally flows from northwest to southeast near the well field. Although water levels during 2006 and 2007 generally were lower than during 2005, the well-field pumping did not result in the formation of a cone of depression surrounding the well field.
• Published “Potentiometric surface of the Upper Floridan aquifer in the southwestern Albany area, Georgia, 1998–2005, based on revised land-surface altitudes” (Gordon, 2006). The enhanced land-surface accuracy improved delineation of groundwater flow in the area.
• Continued to map sinkholes at the well field. No new sinkholes formed during 2006; however, during 2007, 12 new sinkholes developed.
• Continued to develop groundwater flow model for the well-field area. A variety of changes were made to the model design, including layering and boundary conditions. An extended abstract and poster presentation describing model development and preliminary results were prepared for the 2007 Georgia Water Resources Conference in Athens, March 27–29, 2007 (Gordon and Payne, 2007).