City Of Madison, POTW
Madison, IN · Jefferson County · Publicly Owned Treatment Works
- Average flow
- 1.39 MGD
- Design flow
- 10.2 MGD
- NPDES permit
- IN0025666
- Effective
- Permit expires
- November 2026
- Population served
- 15,944
- CWNS 2022
City Of Madison, POTW is a publicly owned wastewater treatment works in Madison, Jefferson County, Indiana treating an average of 1.39 million gallons per day against a permitted design capacity of 10.2 MGD, serving about 15,944 residents. Treatment on site includes clarifiers. It discharges under NPDES permit IN0025666 (effective), which expires in November 2026, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
Unlock
Unlock exact unit counts →
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
12 verified contacts for City Of Madison, POTW, with validated emails and direct phone numbers.
Unlock 12 verified contacts (9 more than shown)
Names, validated emails and direct phone numbers for decision-makers at City Of Madison, POTW, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Hanover · 4 mi away
0.41 MGD
Madison · 8 mi away
0.0036 MGD
Dupont · 13 mi away
0.02 MGD
Lexington · 14 mi away
0.0073 MGD
New Washington · 16 mi away
0.05 MGD
Vevay · 17 mi away
0.14 MGD
Scottsburg · 20 mi away
0.92 MGD
Friendship · 21 mi away
0.01 MGD
City Of Madison, POTW: 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 19, 2025.