Oshkosh Wastewater Treatment F
Oshkosh, WI · Winnebago County · Publicly Owned Treatment Works
- Average flow
- 8.49 MGD
- Design flow
- 20 MGD
- NPDES permit
- WI0025038
- Expired
- Permit expires
- December 2023
- Population served
- 78,158
- CWNS 2022
Oshkosh Wastewater Treatment F is a publicly owned wastewater treatment works in Oshkosh, Winnebago County, Wisconsin treating an average of 8.49 million gallons per day against a permitted design capacity of 20 MGD, serving about 78,158 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit WI0025038 (expired), which expires in December 2023, with 34 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
- 34
- Effluent violations
- 34
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Oshkosh Wastewater Treatment F, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Oshkosh Wastewater Treatment F, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Oshkosh · 7 mi away
0.05 MGD
Winneconne · 10 mi away
0.32 MGD
Winchester · 12 mi away
—
New Holstein · 13 mi away
0.04 MGD
Menasha · 13 mi away
—
Winneconne · 14 mi away
0.03 MGD
Rosendale · 15 mi away
0.07 MGD
Neenah · 15 mi away
5.31 MGD
Oshkosh Wastewater Treatment F: 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 March 2, 2025.