Milan WWTP
313 E Ellis, Milan, IN 47031 · Ripley County · Publicly Owned Treatment Works
- Average flow
- 0.31 MGD
- Design flow
- 0.45 MGD
- NPDES permit
- IN0023779
- Effective
- Permit expires
- July 2029
- Population served
- 1,823
- CWNS 2022
Milan WWTP is a publicly owned wastewater treatment works in Milan, Ripley County, Indiana treating an average of 0.31 million gallons per day against a permitted design capacity of 0.45 MGD, serving about 1,823 residents. It discharges under NPDES permit IN0023779 (effective), which expires in July 2029, with 61 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Milan WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 61
- Effluent violations
- 61
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Milan WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Indiana
Moores Hill · 2 mi away
0.06 MGD
Dillsboro · 7 mi away
0.15 MGD
Dillsboro · 7 mi away
0.01 MGD
Sunman · 8 mi away
0.19 MGD
Osgood · 8 mi away
0.32 MGD
Versailles · 9 mi away
0.41 MGD
Friendship · 11 mi away
0.02 MGD
Napoleon · 13 mi away
0.09 MGD
Milan 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 October 26, 2026; facility record last updated September 27, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms