Cromwell WWTP
4142 N Sr 5, Cromwell, IN 46732 · Noble County · Publicly Owned Treatment Works
- Average flow
- 0.1 MGD
- Design flow
- 0.15 MGD
- NPDES permit
- IN0021814
- Effective
- Permit expires
- August 2028
- Population served
- 1,249
- CWNS 2022
Cromwell WWTP is a publicly owned wastewater treatment works in Cromwell, Noble County, Indiana treating an average of 0.1 million gallons per day against a permitted design capacity of 0.15 MGD, serving about 1,249 residents. It discharges under NPDES permit IN0021814 (effective), which expires in August 2028, with 1 recorded violation in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Cromwell WWTP.
Available with a free Klarifi account
See the full treatment train at Cromwell WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Cromwell WWTP.
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Nearby wastewater treatment plants in Indiana
Cromwell · 3 mi away
0.33 MGD
Ligonier · 4 mi away
0.61 MGD
North Webster · 8 mi away
0.31 MGD
Syracuse · 8 mi away
0.45 MGD
Albion · 9 mi away
0.27 MGD
Millersburg · 9 mi away
0.07 MGD
Topeka · 10 mi away
0.13 MGD
Wawaka · 10 mi away
0.06 MGD
Cromwell 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 February 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms