Franklin Wwtp, City Of
Franklin, IN · Johnson County · Publicly Owned Treatment Works
- Average flow
- 3.07 MGD
- Design flow
- 5.13 MGD
- NPDES permit
- IN0021181
- Effective
- Permit expires
- August 2027
- Population served
- 23,657
- CWNS 2022
Franklin Wwtp, City Of is a publicly owned wastewater treatment works in Franklin, Johnson County, Indiana treating an average of 3.07 million gallons per day against a permitted design capacity of 5.13 MGD, serving about 23,657 residents. Treatment on site includes clarifiers, aerated lagoons, carrousels / oxidation ditches. It discharges under NPDES permit IN0021181 (effective), which expires in August 2027, with 18 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
- 18
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Franklin Wwtp, City Of, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Franklin Wwtp, City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Whiteland · 6 mi away
0.51 MGD
Trafalgar · 7 mi away
0.15 MGD
New Whiteland · 7 mi away
0.26 MGD
Bargersville · 8 mi away
0.92 MGD
Edinburgh · 9 mi away
0.43 MGD
Edinburgh · 9 mi away
0.47 MGD
Waverly · 13 mi away
0.0058 MGD
Shelbyville · 14 mi away
3.81 MGD
Franklin Wwtp, City Of: 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 May 18, 2025.