Pevely WWTP
Pevely, MO · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 0.7 MGD
- Design flow
- —
- NPDES permit
- MO0040142
- Effective
- Permit expires
- July 2029
- Population served
- 18,000
- CWNS 2022
Pevely WWTP is a publicly owned wastewater treatment works in Pevely, Jefferson County, Missouri treating an average of 0.7 million gallons per day, serving about 18,000 residents. Treatment on site includes clarifiers, uncovered lagoons, biological treatment, other, biosolids aerobic digestion, disinfection, uv and other unit processes. It discharges under NPDES permit MO0040142 (effective), which expires in July 2029, with 3 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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Uncovered lagoons
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Biological Treatment, Other
unit processBiosolids Aerobic Digestion
unit processDisinfection, UV
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Pevely WWTP.
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Nearby wastewater treatment plants in Missouri
Barnhart · 2 mi away
0.05 MGD
Pevely · 3 mi away
0.004 MGD
Hillsboro · 4 mi away
0.003 MGD
Barnhart · 4 mi away
0.48 MGD
Crystal City · 5 mi away
1.81 MGD
Hillsboro · 6 mi away
0.003 MGD
Imperial · 7 mi away
1.42 MGD
Hillsboro · 8 mi away
0.28 MGD
Pevely 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 18, 2026.