GEORGIA RESERVOIR REPORT

Last Updated: December 24, 2025

The latest observations of the nation's dams and reservoirs present a mixed picture of water storage levels, with some areas experiencing surpluses due to recent inflows, while others face drought conditions with below-average water levels. Notably, major reservoirs such as Lake Powell in Arizona and Lake Mead in Nevada reveal a concerning trend, with storage levels falling significantly short of their historical averages, reflecting extended periods of drought and increased water demand in the Southwest. Conversely, California's Lake San Antonio has seen a surge in water levels, exceeding its average and demonstrating the variability of water supplies across different regions.

For water management researchers and hydrologists, the data underscores the importance of monitoring and adaptive management strategies to address the challenges posed by climate variability and human impact on water resources. Reservoirs like Lake Powell, currently at only 44% of average storage, and Lake Mead with less than half its average, are stark reminders of the long-term water scarcity issues facing the Colorado River Basin. Meanwhile, reservoirs such as California's Lake San Antonio, which now holds over twice its average storage, showcase the benefits of effective catchment during periods of heavy precipitation. The contrasting conditions highlight the need for dynamic management approaches that consider both the immediate and future water needs, in addition to the environmental and economic impacts of fluctuating water levels.

Georgia relies heavily on reservoirs and dams to meet its water needs. Major reservoirs in the state include Lake Allatoona, Lake Lanier, and Lake Hartwell. These reservoirs are primarily fed by streams and rivers such as the Chattahoochee, Etowah, and Savannah. The hydrology of the area is influenced by the Appalachian Mountains, which provide snowpack that contributes to streamflow. However, drought conditions can impact the availability of water in these reservoirs. In 2007, Lake Lanier reached record low levels due to a severe drought. Seasonal trends also play a role in water availability, with higher streamflow during the winter and spring months. Overall, reservoirs and dams play a crucial role in managing water resources in Georgia, ensuring that residents have access to a reliable supply of water.

Georgia relies heavily on reservoirs and dams to meet its water needs. Major reservoirs in the state include Lake Allatoona, Lake Lanier, and Lake Hartwell. These reservoirs are primarily fed by streams and rivers such as the Chattahoochee, Etowah, and Savannah. The hydrology of the area is influenced by the Appalachian Mountains, which provide snowpack that contributes to streamflow. However, drought conditions can impact the availability of water in these reservoirs. In 2007, Lake Lanier reached record low levels due to a severe drought. Seasonal trends also play a role in water availability, with higher streamflow during the winter and spring months. Overall, reservoirs and dams play a crucial role in managing water resources in Georgia, ensuring that residents have access to a reliable supply of water.