Sedalia Southeast WWTP
Sedalia, MO · Pettis County · Publicly Owned Treatment Works
- Average flow
- 0.77 MGD
- Design flow
- —
- NPDES permit
- MO0101567
- Effective
- Permit expires
- October 2028
- Population served
- 21,634
- CWNS 2022
Sedalia Southeast WWTP is a publicly owned wastewater treatment works in Sedalia, Pettis County, Missouri treating an average of 0.77 million gallons per day, serving about 21,634 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches, biological treatment, other, biosolids thickening, disinfection, uv and other unit processes. It discharges under NPDES permit MO0101567 (effective), which expires in October 2028, with 59 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Carrousels / oxidation ditches
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Biological Treatment, Other
unit processBiosolids Thickening
unit processDisinfection, UV
unit processScreening
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Compliance snapshot (last 3 years)
- Total violations
- 59
- Effluent violations
- 55
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Sedalia Southeast WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Sedalia Southeast WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Missouri
Sedalia · 5 mi away
0.58 MGD
Sedalia · 5 mi away
1.28 MGD
Otterville · 11 mi away
0.01 MGD
Green Ridge · 13 mi away
0.0016 MGD
Ionia · 14 mi away
0.0046 MGD
La Monte · 14 mi away
0.02 MGD
Cole Camp · 15 mi away
0.1 MGD
Houstonia · 18 mi away
0.009 MGD
Sedalia Southeast 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 August 13, 2026.