Vienna WWTP No 1
Vienna, OH · Trumbull County · Publicly Owned Treatment Works
- Average flow
- 0.0052 MGD
- Design flow
- 0.02 MGD
- NPDES permit
- OH0097993
- Effective
- Permit expires
- February 2027
- Population served
- 622
- CWNS 2022
Vienna WWTP No 1 is a publicly owned wastewater treatment works in Vienna, Trumbull County, Ohio treating an average of 0.0052 million gallons per day against a permitted design capacity of 0.02 MGD, serving about 622 residents. It discharges under NPDES permit OH0097993 (effective), which expires in February 2027, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Vienna WWTP No 1.
No verified contacts on file yet
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Nearby wastewater treatment plants in Ohio
Hubbard · 4 mi away
0.00057 MGD
Warren · 4 mi away
0.0034 MGD
Hubbard · 6 mi away
0.93 MGD
Masury · 6 mi away
0.6 MGD
Niles · 6 mi away
3.43 MGD
Girard · 6 mi away
1.97 MGD
Warren · 6 mi away
2.69 MGD
Mineral Ridge · 8 mi away
2.64 MGD
Vienna WWTP No 1: 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 September 30, 2025.