Oxidation ditches: wastewater treatment plants in Georgia
47 plants · 20% of the state · 74 MGD reported by 43 plants
Klarifi identifies 47 publicly owned wastewater treatment plants with oxidation ditches in Georgia, 20% of the 241 plants in the state (74 MGD reported by 43 plants). The largest is Pole Bridge Creek Advanced Wastewater Facility in Lithonia at 30.42 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 | 30.42 | GA0026816 | Mar 2029 | 4 |
| 2 | Calhoun (city Of) WPCP | Calhoun | 5 | GA0030333 | Aug 2028 | 0 |
| 3 | Columbia County - Little River WPCP | Evans | 4.74 | GA0047775 | Jul 2028 | 0 |
| 4 | Long Cane Creek Water Pollution Control Plant | Lagrange | 4.03 | GA0036951 | Oct 2028 | 2 |
| 5 | City Of Cumming | Cumming | 3.6 | GA0046019 | Aug 2028 | 0 |
| 6 | Douglas Southeast WPCP | Douglas | 3.4 | GA0024431 | Dec 2021 | 36 |
| 7 | Fayetteville, City Of (whitewater Creek Wpcp) | Fayetteville | 2.33 | GA0035807 | Sep 2026 | 0 |
| 8 | Douglasville-Douglas County Water & Sewerage Authority (sweetwater Creek Wpcp) | Douglasville | 2 | GA0047201 | Jan 2026 | 14 |
| 9 | Savannah, City Of (georgetown Wpcp) | Savannah | 1.81 | GA0046418 | Aug 2026 | 0 |
| 10 | Chatsworth, City Of (judson Vick Wpcp) | Chatsworth | 1.31 | GA0032492 | Nov 2029 | 0 |
| 11 | Dallas, City Of (pumpkinvine Creek Wpcp) | Dallas | 1.3 | GAIS13435 | May 2027 | 0 |
| 12 | Oconee County Calls Creek WPCP | Watkinsville | 1.16 | GA0050211 | Jun 2024 | 0 |
| 13 | Louisville (city Of) Forstmann WPCP | Louisville | 1.08 | GA0050243 | Nov 2026 | 54 |
| 14 | City Of Thomson | Thomson | 1.04 | GA0020974 | Feb 2024 | 2 |
| 15 | Commerce, City Of (northside Wpcp) | Commerce | 1.03 | GA0026247 | Nov 2030 | 1 |
| 16 | Dawson, City Of (dawson Wpcp) | Dawson | 0.72 | GA0021326 | Jun 2022 | 114 |
| 17 | Barnesville, City Of (james A. King Wwtf) | Barnesville | 0.7 | GA0021041 | Nov 2030 | 8 |
| 18 | Hampton, City Of (bear Creek Wpcp) | Hampton | 0.66 | GA0020320 | Jul 2025 | 24 |
| 19 | City Of Adairsville (north Wpcp) | Adairsville | 0.57 | GA0046035 | Jun 2026 | 23 |
| 20 | Springfield, City Of (springfield Wpcp) | Rincon | 0.53 | GA0020770 | Jul 2029 | 0 |
| 21 | Town Branch WPCP | Thomaston | 0.52 | GA0030121 | Dec 2029 | 13 |
| 22 | City Of Griffin (cabin Cr) | Griffin | 0.52 | GA0020214 | Aug 2030 | 1 |
| 23 | Jekyll Island State Park Authority (jekyll Island Wpcp) | Jekyll Island | 0.5 | GA0020508 | Nov 2026 | 3 |
| 24 | Warrenton, City Of (warrenton Wpcp) | Warrenton | 0.47 | GA0050233 | Aug 2025 | 28 |
| 25 | Darien, City Of (darien Wpcp) | Darien | 0.42 | GA0033529 | Nov 2025 | 5 |
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 September 11, 2026.