Rockdale WWTF
Rockdale, WI · Fond Du Lac County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- 0.03 MGD
- NPDES permit
- WI0026352
- Expired
- Permit expires
- December 2023
- Population served
- 222
- CWNS 2022
Rockdale WWTF is a publicly owned wastewater treatment works in Rockdale, Fond Du Lac County, Wisconsin treating an average of 0.01 million gallons per day against a permitted design capacity of 0.03 MGD, serving about 222 residents. It discharges under NPDES permit WI0026352 (expired), which expires in December 2023, with 13 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
- 13
- Effluent violations
- 13
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Rockdale WWTF.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Wisconsin
Cambridge · 4 mi away
0.34 MGD
Deerfield · 6 mi away
0.23 MGD
Stoughton · 10 mi away
1.06 MGD
Edgerton · 10 mi away
0.47 MGD
Fort Atkinson · 10 mi away
—
Lake Mills · 10 mi away
—
Edgerton · 11 mi away
0.49 MGD
Jefferson · 12 mi away
1.06 MGD
Rockdale 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 November 20, 2025.