New Castle WWTP
New Castle, IN · Henry County · Publicly Owned Treatment Works
- Average flow
- 2.66 MGD
- Design flow
- 10 MGD
- NPDES permit
- IN0023914
- Effective
- Permit expires
- July 2031
- Population served
- 22,221
- CWNS 2022
New Castle WWTP is a publicly owned wastewater treatment works in New Castle, Henry County, Indiana treating an average of 2.66 million gallons per day against a permitted design capacity of 10 MGD, serving about 22,221 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit IN0023914 (effective), which expires in July 2031, with 37 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
- 37
- Effluent violations
- 30
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for New Castle WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at New Castle WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Kennard · 6 mi away
0.02 MGD
Mount Summit · 7 mi away
0.03 MGD
Mooreland · 9 mi away
0.03 MGD
Shirley · 11 mi away
—
Knightstown · 11 mi away
0.28 MGD
Middletown · 12 mi away
0.32 MGD
Hagerstown · 12 mi away
0.16 MGD
Cambridge City · 14 mi away
0.88 MGD
New Castle 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 August 19, 2026.