Sedalia Central WWTP
Sedalia, MO · Pettis County · Publicly Owned Treatment Works
- Average flow
- 1.28 MGD
- Design flow
- —
- NPDES permit
- MO0023019
- Effective
- Permit expires
- October 2028
- Population served
- 30,300
- CWNS 2022
Sedalia Central WWTP is a publicly owned wastewater treatment works in Sedalia, Pettis County, Missouri treating an average of 1.28 million gallons per day, serving about 30,300 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, biological treatment, other, biosolids anaerobic digestion without energy recovery and other unit processes. It discharges under NPDES permit MO0023019 (effective), which expires in October 2028, with 57 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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Aerated lagoons
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Uncovered lagoons
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Biological Treatment, Other
unit processBiosolids Anaerobic Digestion without Energy Recovery
unit processBiosolids Mechanical Dewatering
unit processBiosolids Thickening
unit processDisinfection, UV
unit processFlow Equalization
unit processScreening
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Compliance snapshot (last 3 years)
- Total violations
- 57
- Effluent violations
- 53
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Sedalia Central WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Sedalia Central WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Missouri
Sedalia · 1 mi away
0.58 MGD
Sedalia · 5 mi away
0.77 MGD
La Monte · 9 mi away
0.02 MGD
Green Ridge · 10 mi away
0.0016 MGD
Houstonia · 14 mi away
0.009 MGD
Otterville · 15 mi away
0.01 MGD
Ionia · 15 mi away
0.0046 MGD
Cole Camp · 18 mi away
0.1 MGD
Sedalia Central 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 April 24, 2025.