Edgerton Wastewater Treatment Facility
Edgerton, WI · Rock County · Publicly Owned Treatment Works
- Average flow
- 0.47 MGD
- Design flow
- 0.7 MGD
- NPDES permit
- WI0020346
- Expired
- Permit expires
- September 2023
- Population served
- 5,460
- CWNS 2022
Edgerton Wastewater Treatment Facility is a publicly owned wastewater treatment works in Edgerton, Rock County, Wisconsin treating an average of 0.47 million gallons per day against a permitted design capacity of 0.7 MGD, serving about 5,460 residents. Treatment on site includes uncovered lagoons, biogas balloons. It discharges under NPDES permit WI0020346 (expired), which expires in September 2023, with 16 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
- 16
- Effluent violations
- 16
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Edgerton Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Edgerton Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Edgerton · 2 mi away
0.49 MGD
Milton · 7 mi away
0.34 MGD
Stoughton · 10 mi away
1.06 MGD
Rockdale · 10 mi away
0.01 MGD
Evansville · 12 mi away
0.09 MGD
Fort Atkinson · 12 mi away
—
Janesville · 13 mi away
9.98 MGD
Footville · 13 mi away
0.11 MGD
Edgerton Wastewater Treatment Facility: 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 November 20, 2025.