East Walnut Street, Winfield, MO 63389 · Lincoln County · Publicly Owned Treatment Works
Winfield WWTF is a publicly owned wastewater treatment works in Winfield, Lincoln County, Missouri treating an average of 0.0058 million gallons per day, serving about 1,960 residents. It discharges under NPDES permit MO0088676 (administratively continued), which expires in June 2024, with 155 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in June 2012.
3 treatment structures and unit processes identified, 2 planned upgrades on record at Winfield WWTF.
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See the full treatment train at Winfield WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Winfield WWTF in EPA's ICIS system.
Latest case · Jun 2012
WINFIELD, MISSOURI; A MUNICIPALITY
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $4,000
Source: EPA ECHO, civil enforcement case 07-2012-0151.
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Every action against Winfield WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Winfield WWTF.
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Old Monroe · 4 mi away
0.0025 MGD
Old Monroe · 5 mi away
0.04 MGD
Moscow Mills · 7 mi away
0.0037 MGD
O'Fallon · 8 mi away
0.13 MGD
Winfield · 8 mi away
0.35 MGD
Elsberry · 9 mi away
0.0043 MGD
O'Fallon · 10 mi away
7.55 MGD
Moscow Mills · 11 mi away
0.31 MGD
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 12, 2026; facility record last updated April 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms