Ridgeland Wastewater Treatment Plant
Ridgeland, WI · Dunn County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.03 MGD
- NPDES permit
- WI0021296
- Expired
- Permit expires
- September 2023
- Population served
- 283
- CWNS 2022
Ridgeland Wastewater Treatment Plant is a publicly owned wastewater treatment works in Ridgeland, Dunn County, Wisconsin, serving about 283 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit WI0021296 (expired), which expires in September 2023, with 15 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 15
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ridgeland Wastewater Treatment Plant.
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Turtle Lake · 18 mi away
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Rice Lake · 19 mi away
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Ridgeland Wastewater Treatment Plant: 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 6, 2025.