Wellsville WWTP
Wellsville, OH · Columbiana County · Publicly Owned Treatment Works
- Average flow
- 0.46 MGD
- Design flow
- 1 MGD
- NPDES permit
- OH0028045
- Effective
- Permit expires
- February 2031
- Population served
- 3,113
- CWNS 2022
Wellsville WWTP is a publicly owned wastewater treatment works in Wellsville, Columbiana County, Ohio treating an average of 0.46 million gallons per day against a permitted design capacity of 1 MGD, serving about 3,113 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit OH0028045 (effective), which expires in February 2031, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Wellsville WWTP.
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Nearby wastewater treatment plants in Ohio
Wellsville · 2 mi away
0.0023 MGD
Wellsville · 3 mi away
0.0065 MGD
East Liverpool · 4 mi away
1.91 MGD
Empire · 6 mi away
0.03 MGD
Hammondsville · 6 mi away
0.00034 MGD
Empire · 6 mi away
0.0056 MGD
Salineville · 9 mi away
0.06 MGD
Toronto · 10 mi away
0.22 MGD
Wellsville WWTP: frequently asked 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; facility record last updated November 15, 2025.