Friesland Waterworks
Friesland, WI · Columbia County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- WI0031780
- Expired
- Permit expires
- June 2019
- Population served
- 346
- CWNS 2022
Friesland Waterworks is a publicly owned wastewater treatment plant in Friesland, Columbia County, Wisconsin, serving about 346 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit WI0031780 (expired), which expires in June 2019, with 19 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
- 19
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Friesland Waterworks.
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Nearby wastewater treatment plants in Wisconsin
Cambria · 4 mi away
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Randolph · 5 mi away
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Kingston · 8 mi away
0.01 MGD
Rio · 13 mi away
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Fairwater · 14 mi away
0.03 MGD
Princeton · 16 mi away
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Waupun · 18 mi away
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Columbus · 18 mi away
1.03 MGD
Friesland Waterworks: 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.