Belleville Wastewater Treatment Facility
Belleville, WI · Dane County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- 0.27 MGD
- NPDES permit
- WI0023361
- Administratively continued
- Permit expires
- March 2021
- Population served
- 2,400
- CWNS 2022
Belleville Wastewater Treatment Facility is a publicly owned wastewater treatment works in Belleville, Dane County, Wisconsin treating an average of 0.17 million gallons per day against a permitted design capacity of 0.27 MGD, serving about 2,400 residents. Treatment on site includes carrousels / oxidation ditches, biogas balloons. It discharges under NPDES permit WI0023361 (administratively continued), which expires in March 2021, 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
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Belleville
Belleville's capital improvement plan lists 11 water, sewer and wastewater line items worth $3M starting 2026–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Belleville →
| Project | Budget | Years |
|---|---|---|
| Northeast Sanitary Sewer Extension | $1,800,000 | 2026–2026 |
| Trickling Filter Storage | $400,000 | 2029–2029 |
| Generator | $300,000 | 2029–2029 |
| Sludge Storage | $200,000 | 2029–2029 |
| Facilities & Water Quality Trading Plan | $115,000 | 2026–2026 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Belleville Wastewater Treatment Facility.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
New Glarus · 6 mi away
0.34 MGD
Brooklyn · 8 mi away
—
Monticello · 8 mi away
0.21 MGD
Evansville · 14 mi away
0.09 MGD
Mount Horeb · 14 mi away
—
Stoughton · 16 mi away
1.06 MGD
Brodhead · 18 mi away
0.21 MGD
Blue Mounds · 19 mi away
0.03 MGD
Belleville 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 27, 2025.