Winfield WWTF
Winfield, MO · Lincoln County · Publicly Owned Treatment Works
- Average flow
- 0.58 MGD
- Design flow
- —
- NPDES permit
- MO0088676
- Effective
- Permit expires
- June 2024
- Population served
- 1,960
- CWNS 2022
Winfield WWTF is a publicly owned wastewater treatment works in Winfield, Lincoln County, Missouri treating an average of 0.58 million gallons per day, serving about 1,960 residents. Treatment on site includes aerated lagoons, uncovered lagoons, lagoon, facultative. It discharges under NPDES permit MO0088676 (effective), which expires in June 2024, with 192 recorded violations in the last three years. Planned upgrades on record: biological treatment, other, disinfection, uv.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Uncovered lagoons
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Lagoon, Facultative
unit processBiological Treatment, Other
planned upgradeDisinfection, UV
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Compliance snapshot (last 3 years)
- Total violations
- 192
- Effluent violations
- 44
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Winfield WWTF.
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Nearby wastewater treatment plants in Missouri
Old Monroe · 4 mi away
—
Old Monroe · 5 mi away
0.05 MGD
Moscow Mills · 7 mi away
0.002 MGD
O'Fallon · 8 mi away
0.1 MGD
Winfield · 8 mi away
0.36 MGD
Elsberry · 9 mi away
0.009 MGD
O'Fallon · 10 mi away
6.7 MGD
Moscow Mills · 11 mi away
0.25 MGD
Winfield 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 5, 2025.