Downsville Sanitary District 1
Downsville, WI · Dunn County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- 0.03 MGD
- NPDES permit
- WI0031682
- Expired
- Permit expires
- June 2024
- Population served
- 250
- CWNS 2022
Downsville Sanitary District 1 is a publicly owned wastewater treatment plant in Downsville, Dunn County, Wisconsin treating an average of 0.01 million gallons per day against a permitted design capacity of 0.03 MGD, serving about 250 residents. It discharges under NPDES permit WI0031682 (expired), which expires in June 2024, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Downsville Sanitary District 1.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
Menomonie · 7 mi away
1.72 MGD
Durand City · 11 mi away
0.33 MGD
Elmwood · 11 mi away
0.04 MGD
Elk Mound · 13 mi away
0.05 MGD
Spring Valley · 16 mi away
0.08 MGD
Colfax · 18 mi away
0.19 MGD
Eau Claire · 19 mi away
—
Boyceville · 20 mi away
0.12 MGD
Downsville Sanitary District 1: 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 February 16, 2025.