Friesland Waterworks
Friesland, WI 53935 · Columbia County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- 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 treating an average of 0.03 million gallons per day, serving about 346 residents. It discharges under NPDES permit WI0031780 (expired), which expires in June 2019, with 19 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Friesland Waterworks.
Available with a free Klarifi account
See the full treatment train at Friesland Waterworks: structures, unit processes and planned upgrades, with exact unit counts.
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
0.06 MGD
Randolph · 5 mi away
—
Kingston · 8 mi away
0.01 MGD
Rio · 13 mi away
—
Fairwater · 14 mi away
0.03 MGD
Princeton · 16 mi away
0.65 MGD
Waupun · 18 mi away
1.32 MGD
Columbus · 18 mi away
1.11 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 October 26, 2026; facility record last updated November 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms