Oxidation ditches: wastewater treatment plants in West Virginia
37 plants · 16% of the state · 13 MGD reported by 33 plants
Klarifi identifies 37 publicly owned wastewater treatment plants with oxidation ditches in West Virginia, 16% of the 232 plants in the state (13 MGD reported by 33 plants). The largest is Moorefield/hardy County Regional Wastewater in Moorefield at 2.79 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 West Virginia
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Moorefield/hardy County Regional Wastewater | Moorefield | 2.79 | WV0106038 | Jun 2021 | 18 |
| 2 | Bridgeport Wastewater Treatment Plant | Bridgeport | 1.34 | WV0025461 | Jun 2010 | 93 |
| 3 | Salt Rock Sewer Psd | Ona | 0.75 | WV0084450 | Apr 2013 | 31 |
| 4 | Welch City Of | Welch | 0.67 | WVL024589 | Dec 2030 | 197 |
| 5 | Buckhannon Sewer Plant | Buckhannon | 0.63 | WV0032336 | May 2012 | 61 |
| 6 | Philippi City Of | Philippi | 0.63 | WV0021857 | Jun 2017 | 32 |
| 7 | City Of New Martinsville | New Martinsville | 0.63 | WVL027472 | Dec 2030 | 2 |
| 8 | Green Valley-Glenwood Psd | Princeton | 0.62 | WVL082627 | Dec 2030 | 15 |
| 9 | Crab Orchard/macarthur Psd | Macarthur | 0.49 | WVL082309 | Dec 2030 | 9 |
| 10 | Shinnston City Of WWTP | Shinnston | 0.38 | WV0054500 | Mar 2010 | 69 |
| 11 | City Of Petersburg | Petersburg | 0.38 | WV0021792 | Feb 2016 | 75 |
| 12 | Follansbee City Of | Follansbee | 0.33 | WV0020273 | May 2011 | 0 |
| 13 | Cowen Psd | Cowen | 0.3 | WV0037397 | Mar 2013 | 49 |
| 14 | Boone County Psd | Danville | 0.26 | WV0035939 | Mar 2012 | 15 |
| 15 | White Oak Psd | Scarbro | 0.25 | WV0044041 | Feb 2014 | 4 |
| 16 | Flatwoods-Canoe Run Public Service District | Gassaway | 0.25 | WV0084042 | Jun 2017 | 67 |
| 17 | Logan County Psd | Peach Creek | 0.23 | WV0105171 | Feb 2011 | 57 |
| 18 | Town Of Marmet | Marmet | 0.23 | WV0021750 | Apr 2011 | 333 |
| 19 | Sissonville Psd | Sissonville | 0.22 | WV0029530 | Sep 2016 | 43 |
| 20 | Belington City Of | Belington | 0.22 | WV0029289 | Jul 2016 | 29 |
| 21 | Craigsville Psd | Craigsville | 0.19 | WV0045730 | Sep 2012 | 214 |
| 22 | Beverly Town Of | Beverly | 0.18 | WV0045136 | May 2017 | 70 |
| 23 | Mannington City Of | Mannington | 0.15 | WV0024953 | Sep 2013 | 106 |
| 24 | Harrisville Town Of | Harrisville | 0.14 | WV0022357 | Nov 2013 | 519 |
| 25 | Junior Town Of | Junior | 0.12 | WV0040843 | Feb 2012 | 42 |
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 West Virginia
Oxidation ditches in other states
Oxidation ditches in West Virginia: 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.