Neenah-Menasha Sewerage Commission WWTF
Menasha, WI · Winnebago County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 18 MGD
- NPDES permit
- WI0026085
- Expired
- Permit expires
- June 2022
- Population served
- 67,716
- CWNS 2022
Neenah-Menasha Sewerage Commission WWTF is a publicly owned wastewater treatment works in Menasha, Winnebago County, Wisconsin, serving about 67,716 residents. Treatment on site includes clarifiers, biogas silos, biogas balloons. It discharges under NPDES permit WI0026085 (expired), which expires in June 2022, with 231 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
- 231
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Neenah-Menasha Sewerage Commission WWTF, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Neenah-Menasha Sewerage Commission WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Neenah · 2 mi away
5.31 MGD
Appleton · 7 mi away
9.25 MGD
Winchester · 9 mi away
—
Oshkosh · 11 mi away
0.05 MGD
Woodville · 11 mi away
—
New Holstein · 12 mi away
0.04 MGD
Dale · 12 mi away
0.02 MGD
Kaukauna · 12 mi away
2.21 MGD
Neenah-Menasha Sewerage Commission WWTF: 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 April 13, 2025.