Roxbury Sanitary District #1 WWTF
Sauk City, WI · Dane County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- 0.02 MGD
- NPDES permit
- WI0028975
- Administratively continued
- Permit expires
- September 2018
- Population served
- 250
- CWNS 2022
Roxbury Sanitary District #1 WWTF is a publicly owned wastewater treatment works in Sauk City, Dane County, Wisconsin treating an average of 0.01 million gallons per day against a permitted design capacity of 0.02 MGD, serving about 250 residents. It discharges under NPDES permit WI0028975 (administratively continued), which expires in September 2018, with 14 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
- 14
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Roxbury Sanitary District #1 WWTF.
No verified contacts on file yet
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Nearby wastewater treatment plants in Wisconsin
Lodi · 9 mi away
0.27 MGD
Mazomanie · 9 mi away
0.34 MGD
Cross Plains · 10 mi away
0.4 MGD
Baraboo · 14 mi away
1.29 MGD
North Freedom · 16 mi away
0.02 MGD
Blue Mounds · 19 mi away
0.03 MGD
Rock Springs · 19 mi away
0.0029 MGD
Mount Horeb · 19 mi away
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Roxbury Sanitary District #1 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 December 6, 2025.