New Holstein City WWTF
New Holstein, WI · Calumet County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 1.33 MGD
- NPDES permit
- WI0020893
- Expired
- Permit expires
- March 2023
- Population served
- 3,440
- CWNS 2022
New Holstein City WWTF is a publicly owned wastewater treatment works in New Holstein, Calumet County, Wisconsin, serving about 3,440 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit WI0020893 (expired), which expires in March 2023, with 7 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
- 7
- Effluent violations
- 7
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for New Holstein City WWTF, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at New Holstein City WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Kiel · 4 mi away
1.05 MGD
Chilton · 6 mi away
0.71 MGD
St. Nazianz · 9 mi away
0.03 MGD
Potter · 11 mi away
0.02 MGD
Hilbert · 14 mi away
0.2 MGD
New Holstein · 14 mi away
0.04 MGD
Brillion · 14 mi away
0.46 MGD
Reedsville · 15 mi away
0.005 MGD
New Holstein City 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 April 13, 2025.