Oxidation ditches: wastewater treatment plants in Alabama
33 plants · 13% of the state · 51 MGD reported by 31 plants
Klarifi identifies 33 publicly owned wastewater treatment plants with oxidation ditches in Alabama, 13% of the 253 plants in the state (51 MGD reported by 31 plants). The largest is City Of Huntsville in Madison at 10.29 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 Alabama
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | City Of Huntsville | Madison | 10.29 | AL0049531 | Jun 2030 | 2 |
| 2 | Aldridge Creek Wastewater Treatment Plant | Huntsville | 4.06 | AL0056855 | Feb 2027 | 0 |
| 3 | Walnut Creek WWTP | Troy | 3.06 | AL0032310 | Nov 2029 | 20 |
| 4 | Alabaster WWTP | Alabaster | 2.95 | AL0025828 | Nov 2029 | 1 |
| 5 | Opelika Westside WWTP | Opelika | 2.75 | AL0050130 | Mar 2028 | 6 |
| 6 | Turkey Creek WWTP | Pinson | 2.7 | AL0022926 | Jun 2026 | 1 |
| 7 | Jasper Town Creek WWTP | Jasper | 2.6 | AL0023418 | Sep 2029 | 2 |
| 8 | Foley WWTP | Foley | 2.07 | AL0049042 | Oct 2027 | 1 |
| 9 | Trussvillle WWTP | Trussville | 2 | ALL022934 | Dec 2030 | 3 |
| 10 | Northport Wastewater Treatment Plant | N Port | 1.98 | AL0064394 | Nov 2025 | 27 |
| 11 | Russellville WWTP | Russellville | 1.84 | AL0027987 | Jul 2027 | 5 |
| 12 | Big Cove WWTP | Brownsboro | 1.57 | AL0055042 | May 2028 | 1 |
| 13 | Dothan Cypress Creek WWTP | Dothan | 1.39 | AL0072737 | Sep 2027 | 1 |
| 14 | Millbrook WWTP | Millbrook | 1.31 | AL0049921 | Apr 2028 | 0 |
| 15 | New Market Wastewater Mgmt Facility | New Market | 1.28 | AL0057428 | Nov 2026 | 2 |
| 16 | Fort Payne Wastewater Treatment Plant | Fort Payne | 1.27 | AL0023311 | Mar 2024 | 8 |
| 17 | Helena WWTP | Helena | 1.04 | AL0023116 | May 2030 | 38 |
| 18 | Dye Creek Wastewater Treatment Plt | Pell City | 0.95 | AL0045993 | Jul 2026 | 0 |
| 19 | Lincoln South WWTP | Lincoln | 0.94 | AL0054356 | Aug 2028 | 2 |
| 20 | City Of Hoover | Hoover | 0.82 | AL0041653 | Sep 2028 | 0 |
| 21 | Leeds Norman R Skinner WWTP | Leeds | 0.78 | AL0067067 | Dec 2027 | 3 |
| 22 | Mallard Fox West WWTP | Trinity | 0.64 | AL0076708 | Jul 2029 | 10 |
| 23 | Bayou La Batre Rr St WWTP | Bayou La Batre | 0.63 | AL0078921 | Sep 2028 | 7 |
| 24 | Rainsville WWTP | Rainsville | 0.52 | AL0042765 | Feb 2028 | 0 |
| 25 | Monroeville Double Branch WWTP | Monroeville | 0.35 | AL0027782 | Aug 2026 | 26 |
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 Alabama
Oxidation ditches in other states
Oxidation ditches in Alabama: 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.