3.1.2 Groundwater Availability by Aquifer (charts)

Legend

 Range of Sustainable Yield

 Projected Demand with 75% Agricultural Use in 2010

 Projected Demand with 75% Agricultural Use in 2050

 Projected Demand in 2009

MGD: Million Gallons per Day

Paleozoic-rock Aquifer Study Basin

Councils:

• Coosa-North Georgia
• Metro District

Model: Water Budgets

Crystalline-rock Aquifer Study Basins

Councils:

• Coosa-North Georgia
• Metro District
• Savannah-Upper Ogeechee
• Upper Oconee
• Middle Ocmulgee
• Upper Flint
• Middle Chattahoochee

Model: Water Budgets

Cretaceous Aquifer in Georgia's Coastal Plain

Councils:

• Savannah-Upper Ogeechee
• Upper Oconee
• Middle Ocmulgee
• Upper Flint
• Suwannee-Satilla
• Altamaha

Model: Sustainable Yield

Claiborne Aquifer in Georgia's Coastal Plain

Councils:

• Middle Chattahoochee
• Upper Flint
• Lower Flint
• Suwannee-Satilla

Model: Sustainable Yield

Upper Floridan Aquifer: South Central Georgia and Eastern Coastal Plain

(Modeled Together)

Councils:

• Upper Oconee
• Savannah-Upper Ogeechee
• Altamaha
• Suwannee-Satilla
• Coastal

Model: Sustainable Yield

Coastal Area

The Upper Floridan aquifer along the coast was intensively studied before regional water planning began. EPD's 7-year study of coastal groundwater has shown that, in some parts of the region, availability is limited by movement of saltwater into the aquifer.

Upper Floridan Aquifer: Dougherty Plain

Councils:

• Upper Flint
• Lower Flint
• Suwannee-Satilla

Model: Sustainable Yield

Upper Floridan Aquifer: South Central Georgia

Councils:

• Upper Flint
• Lower Flint
• Suwannee-Satilla
• Middle Ocmulgee
• Altamaha

Model: Sustainable Yield