State Highway Mm, Moscow Mills, MO 63362 · Lincoln County · Publicly Owned Treatment Works
Moscow Mills WWTF is a publicly owned wastewater treatment works in Moscow Mills, Lincoln County, Missouri treating an average of 0.31 million gallons per day, serving about 12,000 residents. It discharges under NPDES permit MO0129852 (administratively continued), which expires in December 2023, with 81 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2020.
3 treatment structures and unit processes identified at Moscow Mills WWTF.
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See the full treatment train at Moscow Mills 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 Moscow Mills WWTF in EPA's ICIS system.
Latest case · Apr 2020
MOSCOW MILLS, MISSOURI
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $2M
Source: EPA ECHO, civil enforcement case 07-2013-0036.
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Every action against Moscow Mills WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Moscow Mills WWTF.
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Troy · 3 mi away
1.44 MGD
Moscow Mills · 5 mi away
0.0037 MGD
Winfield · 5 mi away
0.35 MGD
Wentzville · 5 mi away
4.64 MGD
Old Monroe · 8 mi away
0.04 MGD
Foristell · 8 mi away
0.01 MGD
Wright City · 9 mi away
0.07 MGD
O'Fallon · 10 mi away
0.13 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 26, 2026; facility record last updated August 14, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms