Chlorine disinfection: wastewater treatment plants in West Virginia
36 plants · 16% of the state · 35 MGD reported by 33 plants
Klarifi identifies 36 publicly owned wastewater treatment plants with chlorine disinfection in West Virginia, 16% of the 232 plants in the state (35 MGD reported by 33 plants). The largest is Huntington WWTP in Huntington at 9.5 MGD.
Chlorine or chloramine disinfection, often followed by dechlorination before discharge, remains the most common effluent disinfection in the United States. Plants on gas chlorine are candidates for conversion to hypochlorite or UV, a recurring capital project driven by safety rules and permit limits on residual chlorine.
The largest plants with chlorine disinfection in West Virginia
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Huntington WWTP | Huntington | 9.5 | WVL023159 | Dec 2030 | 72 |
| 2 | City Of Wheeling - Water Pollution Control Division | Wheeling | 4.8 | WV0023230 | Jun 2010 | 130 |
| 3 | Fairmont Wastewater Treatment Plant | Fairmont | 4.4 | WVL023353 | Dec 2030 | 52 |
| 4 | Parkersburg Utility Board | Parkersburg | 4.25 | WVL023213 | Dec 2030 | 3 |
| 5 | Clarksburg Sanitary Bd | Clarksburg | 3.99 | WV0023302 | Apr 2015 | 592 |
| 6 | Richwood City Of | Richwood | 1.4 | WV0022004 | Mar 2013 | 197 |
| 7 | Rocky Fork Wastewater Plant | Cross Lanes | 1.13 | WVL037486 | Dec 2030 | 15 |
| 8 | Nitro WWTP | Nitro | 0.99 | WVL023299 | Dec 2030 | 338 |
| 9 | Malden Public Service District | Charleston | 0.68 | WVL050610 | Dec 2030 | 0 |
| 10 | Oak Hill, City Of | Oak Hill | 0.52 | WV0020281 | May 2014 | 250 |
| 11 | Mineral Wells Psd | Mineral Wells | 0.35 | WV0081141 | Sep 2013 | 14 |
| 12 | Follansbee City Of | Follansbee | 0.33 | WV0020273 | May 2011 | 0 |
| 13 | Salem City Of | Salem | 0.27 | WV0020257 | Apr 2014 | 198 |
| 14 | White Oak Psd | Scarbro | 0.25 | WV0044041 | Feb 2014 | 4 |
| 15 | Paden City WWTP | Paden City | 0.22 | WV0020613 | Sep 2012 | 18 |
| 16 | Sissonville Psd | Sissonville | 0.22 | WV0029530 | Sep 2016 | 43 |
| 17 | Greater Harrison Co. Psd | West Milford | 0.21 | WV0084301 | Oct 2029 | 30 |
| 18 | Town Of Ansted | Ansted | 0.19 | WV0020672 | Mar 2009 | 67 |
| 19 | City Of Parsons | Parsons | 0.18 | WV0022063 | Jun 2011 | 59 |
| 20 | Marlinton, Town Of | Marlinton | 0.16 | WV0024473 | Jan 2009 | 117 |
| 21 | Wayne, Town Of | Wayne | 0.13 | WV0024562 | Dec 2014 | 298 |
| 22 | Hamlin Psd | Hamlin | 0.12 | WV0027693 | Aug 2012 | 7 |
| 23 | Clay Sanitation Plant | Clay | 0.07 | WV0022055 | Apr 2012 | 224 |
| 24 | Paw Paw Town Of | Paw Paw | 0.07 | WV0027405 | Sep 2014 | 66 |
| 25 | City Of Gary/warehouse Project | Gary | 0.06 | WVL020044 | Dec 2030 | 539 |
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
Chlorine disinfection in other states
Chlorine disinfection 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.