St Charles-Mississippi River WWTF

St. Charles, MO · St. Charles County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: 3602344117; ADC

Permit expires: June 2025

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Clarifiers

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Uncovered lagoons

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Carrousels / oxidation ditches

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Disinfection, UV

unit process

Biological Treatment, Other

unit process

Screening

unit process

Biosolids Aerobic Digestion

unit process

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Compliance snapshot (last 3 years)

Total violations: 1

Effluent violations: 1

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Contacts for St Charles-Mississippi River WWTF are available in the Klarifi platform.

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Names, validated emails and direct phone numbers for decision-makers at St Charles-Mississippi River WWTF — plus full compliance history and discharge data.

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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated May 2025.

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