Dousman Wastewater Treatment Facility
Dousman, WI · Waukesha County · Publicly Owned Treatment Works
- Average flow
- 0.48 MGD
- Design flow
- 0.35 MGD
- NPDES permit
- WI0021351
- Expired
- Permit expires
- December 2021
- Population served
- 2,384
- CWNS 2022
Dousman Wastewater Treatment Facility is a publicly owned wastewater treatment works in Dousman, Waukesha County, Wisconsin treating an average of 0.48 million gallons per day against a permitted design capacity of 0.35 MGD, serving about 2,384 residents. Treatment on site includes carrousels / oxidation ditches, biogas balloons. It discharges under NPDES permit WI0021351 (expired), which expires in December 2021, with 9 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
- 9
- Effluent violations
- 9
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Dousman 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 Dousman Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Delafield · 4 mi away
2.33 MGD
Oconomowoc · 6 mi away
—
Ixonia · 10 mi away
—
Palmyra · 11 mi away
0.15 MGD
Waukesha · 12 mi away
3.15 MGD
Ashippun · 13 mi away
0.09 MGD
Mukwonago · 14 mi away
—
Sussex · 15 mi away
2.57 MGD
Dousman 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.