De Soto WWTP
De Soto, MO · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 0.44 MGD
- Design flow
- —
- NPDES permit
- MO0026662
- Administratively continued
- Permit expires
- June 2022
- Population served
- 6,359
- CWNS 2022
De Soto WWTP is a publicly owned wastewater treatment works in De Soto, Jefferson County, Missouri treating an average of 0.44 million gallons per day, serving about 6,359 residents. Treatment on site includes biological treatment, other, biosolids thickening, disinfection, uv, flow equalization, screening. It discharges under NPDES permit MO0026662 (administratively continued), which expires in June 2022, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biological Treatment, Other
unit processBiosolids Thickening
unit processDisinfection, UV
unit processFlow Equalization
unit processScreening
unit processUnlock exact unit counts →
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
Decision-makers at De Soto WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Missouri
Hillsboro · 3 mi away
0.007 MGD
Hillsboro · 3 mi away
0.03 MGD
Desoto · 5 mi away
0.03 MGD
Hillsboro · 7 mi away
0.18 MGD
Hillsboro · 7 mi away
0.28 MGD
Hillsboro · 7 mi away
0.003 MGD
Desoto · 8 mi away
0.02 MGD
Hillsboro · 8 mi away
0.22 MGD
De Soto WWTP: 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 September 4, 2024.