Mexico Regional Sewer District
4373 N Water St, Mexico, IN 46958 · Miami County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- Design flow
- 0.1 MGD
- NPDES permit
- IN0063959
- Effective
- Permit expires
- June 2027
- Population served
- 915
- CWNS 2022
Mexico Regional Sewer District is a publicly owned wastewater treatment works in Mexico, Miami County, Indiana treating an average of 0.03 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 915 residents. It discharges under NPDES permit IN0063959 (effective), which expires in June 2027, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Mexico Regional Sewer District.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Mexico Regional Sewer District.
No verified contacts on file yet
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Mexico Regional Sewer District: 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 October 26, 2026; facility record last updated September 22, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms