Sheboygan Wastewater Treatment Plant
Sheboygan, WI · Sheboygan County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 18.39 MGD
- NPDES permit
- WI0025411
- Expired
- Permit expires
- March 2026
- Population served
- 70,591
- CWNS 2022
Sheboygan Wastewater Treatment Plant is a publicly owned wastewater treatment works in Sheboygan, Sheboygan County, Wisconsin, serving about 70,591 residents. Treatment on site includes clarifiers, biogas silos, biogas balloons. It discharges under NPDES permit WI0025411 (expired), which expires in March 2026, with 1 recorded violation 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
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
7 verified contacts for Sheboygan Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 7 verified contacts (4 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Sheboygan Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Oostburg · 7 mi away
0.02 MGD
Oostburg · 8 mi away
0.27 MGD
Howards Grove · 9 mi away
0.23 MGD
Cedar Grove · 11 mi away
0.12 MGD
Hingham · 11 mi away
0.08 MGD
Plymouth · 13 mi away
—
Cleveland · 15 mi away
0.12 MGD
Cascade · 15 mi away
0.09 MGD
Sheboygan Wastewater Treatment Plant: 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.