Oxidation ditches: wastewater treatment plants in Georgia
54 plants · 21% of the state · 96 MGD reported by 50 plants
Klarifi identifies 54 publicly owned wastewater treatment plants with oxidation ditches in Georgia, 21% of the 256 plants in the state (96 MGD reported by 50 plants). The largest is Pole Bridge Creek Advanced Wastewater Facility in Lithonia at 28.92 MGD.
Oxidation ditches are ring-shaped activated sludge reactors with long retention times, common at plants between 0.5 and 10 MGD. They are recognisable from the air by their looped channels and rely on surface aerators or brush rotors, which are frequent replacement and energy-efficiency projects.
The largest oxidation ditch plants in Georgia
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Pole Bridge Creek Advanced Wastewater Facility | Lithonia | 28.92 | GA0026816 | Mar 2029 | 4 |
| 2 | Gainesville, City Of (flat Creek Wrf) | Gainesville | 9.44 | GA0021156 | Nov 2022 | 49 |
| 3 | Tifton Regional Wastewater Complex | Tifton | 4.69 | GA0048470 | Jan 2031 | 21 |
| 4 | Long Cane Creek Water Pollution Control Plant | Lagrange | 4.54 | GA0036951 | Oct 2028 | 2 |
| 5 | Douglas Southeast WPCP | Douglas | 4.45 | GA0024431 | Dec 2021 | 29 |
| 6 | Quigg Branch Water Pollution Control Plant | Conyers | 4.01 | GA0047678 | Nov 2029 | 0 |
| 7 | Barnesville, City Of (james A. King Wwtf) | Barnesville | 3.63 | GA0021041 | Nov 2030 | 8 |
| 8 | City Of Cumming | Cumming | 3.59 | GA0046019 | Aug 2028 | 0 |
| 9 | Reed Creek WPCP | Martinez | 3.24 | GA0031992 | Mar 2031 | 4 |
| 10 | Douglasville, City Of (south Central Wpcp) | Douglasville | 2.97 | GA0038709 | Jan 2026 | 6 |
Contacts and project signals for every plant on this list
Klarifi adds verified decision-maker contacts, permit limits, discharge monitoring data and the capital projects planned in each city, filterable by technology, size and compliance record.
Other technologies in Georgia
Oxidation ditches in other states
Oxidation ditches in Georgia: questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026.
Wastewater terms: Oxidation ditch · Activated sludge · Biological nutrient removal · NPDES permit · POTW · all terms