Winifred Domestic WWTF
Dy Trail - Knox Ridge Rd, Winifred, MT 59489 · Fergus County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.02 MGD
- NPDES permit
- MT0031453
- Administratively continued
- Permit expires
- March 2024
- Population served
- 163
- CWNS 2022
Winifred Domestic WWTF is a publicly owned wastewater treatment works in Winifred, Fergus County, Montana, serving about 163 residents. It discharges under NPDES permit MT0031453 (administratively continued), which expires in March 2024, with 133 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Winifred Domestic WWTF.
Available with a free Klarifi account
See the full treatment train at Winifred Domestic WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 133
- Effluent violations
- 125
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Winifred Domestic WWTF.
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Hobson · 45 mi away
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Box Elder · 59 mi away
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Winifred Domestic 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 October 26, 2026; facility record last updated September 6, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms