Madison WWTP
Madison, OH · Lake County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.5 MGD
- NPDES permit
- OH0023515
- Terminated
- Permit expires
- July 2028
- Population served
- 3,420
- CWNS 2022
Madison WWTP is a publicly owned wastewater treatment works in Madison, Lake County, Ohio, serving about 3,420 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit OH0023515 (terminated), which expires in July 2028, with 0 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
- 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 Madison WWTP.
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Nearby wastewater treatment plants in Ohio
Madison · 5 mi away
2.01 MGD
Geneva · 6 mi away
0.64 MGD
Geneva On The Lake · 7 mi away
0.14 MGD
Geneva · 7 mi away
0.0081 MGD
Painesville · 10 mi away
0.0061 MGD
Painesville · 10 mi away
0.41 MGD
Painesville · 10 mi away
0.0048 MGD
Austinburg · 10 mi away
0.09 MGD
Madison 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 November 27, 2025.