Niagara Wastewater Treatment Facility
2309 Sherman Road, Niagara, WI 54151 · Marinette County · Publicly Owned Treatment Works
- Average flow
- 0.21 MGD
- Design flow
- 0.39 MGD
- NPDES permit
- WI0029467
- Expired
- Permit expires
- December 2019
- Population served
- 1,869
- CWNS 2022
Niagara Wastewater Treatment Facility is a publicly owned wastewater treatment works in Niagara, Marinette County, Wisconsin treating an average of 0.21 million gallons per day against a permitted design capacity of 0.39 MGD, serving about 1,869 residents. It discharges under NPDES permit WI0029467 (expired), which expires in December 2019, with 1 recorded violation in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Niagara Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Niagara Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Niagara Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Niagara Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Niagara · 5 mi away
0.01 MGD
Wausaukee · 26 mi away
0.07 MGD
Crivitz · 36 mi away
0.11 MGD
Laona · 37 mi away
0.1 MGD
Wabeno · 39 mi away
0.06 MGD
Lakewood · 41 mi away
0.03 MGD
Crandon · 44 mi away
0.03 MGD
Coleman · 48 mi away
0.16 MGD
Niagara Wastewater Treatment Facility: 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 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms