Superior Wastewater Treatment Facility
Superior, MT · Mineral County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- Design flow
- —
- NPDES permit
- MT0020664
- Effective
- Permit expires
- February 2027
- Population served
- 966
- CWNS 2022
Superior Wastewater Treatment Facility is a publicly owned wastewater treatment works in Superior, Mineral County, Montana treating an average of 0.03 million gallons per day, serving about 966 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit MT0020664 (effective), which expires in February 2027, with 24 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 24
- Effluent violations
- 24
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Superior Wastewater Treatment Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Superior Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Montana
Plains · 19 mi away
0.1 MGD
Alberton · 24 mi away
0.02 MGD
Hot Springs · 31 mi away
0.1 MGD
Thompson Falls · 35 mi away
0.05 MGD
St. Ignatius · 38 mi away
0.04 MGD
Ronan · 43 mi away
0.2 MGD
Pablo · 46 mi away
—
Missoula · 46 mi away
7.52 MGD
Superior 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 September 11, 2026; facility record last updated February 10, 2025.