Madisonville WWTP
Madisonville, TX · Madison County · Publicly Owned Treatment Works
- Average flow
- 0.63 MGD
- Design flow
- 0.94 MGD
- NPDES permit
- TX0026662
- Effective
- Permit expires
- August 2027
- Population served
- 4,514
- CWNS 2022
Madisonville WWTP is a publicly owned wastewater treatment works in Madisonville, Madison County, Texas treating an average of 0.63 million gallons per day against a permitted design capacity of 0.94 MGD, serving about 4,514 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0026662 (effective), which expires in August 2027, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 2
- 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 Madisonville WWTP.
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Madisonville 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 March 4, 2025.