Mexico WWTP
Mexico, MO · Audrain County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- MO0036242
- Expired
- Permit expires
- December 2021
- Population served
- 102
- CWNS 2022
Mexico WWTP is a publicly owned wastewater treatment works in Mexico, Audrain County, Missouri, serving about 102 residents. Treatment on site includes clarifiers, uncovered lagoons, biological treatment, other, biosolids anaerobic digestion without energy recovery, disinfection, uv and other unit processes. It discharges under NPDES permit MO0036242 (expired), which expires in December 2021, with 32 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 Anaerobic Digestion without Energy Recovery
unit processDisinfection, UV
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 32
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Mexico WWTP.
No verified contacts on file yet
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Kingdom City · 17 mi away
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Wellsville · 18 mi away
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Hallsville · 20 mi away
0.0025 MGD
Hallsville · 20 mi away
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Perry · 21 mi away
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Millersburg · 21 mi away
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Mexico 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.