Vienna WWTP No 1
2 Maple Dr, Vienna, OH 44473 · Trumbull County · Publicly Owned Treatment Works
- Average flow
- 0.02 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 0.02 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 and unit processes at Vienna WWTP No 1.
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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Hubbard · 4 mi away
0.00059 MGD
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0.00013 MGD
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Masury · 6 mi away
1.18 MGD
Niles · 6 mi away
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Girard · 6 mi away
3.06 MGD
Warren · 6 mi away
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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 October 26, 2026; facility record last updated September 30, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms