Knightstown WWTP
Knightstown, IN · Henry County · Publicly Owned Treatment Works
- Average flow
- 0.28 MGD
- Design flow
- 0.8 MGD
- NPDES permit
- IN0040177
- Effective
- Permit expires
- June 2028
- Population served
- 2,140
- CWNS 2022
Knightstown WWTP is a publicly owned wastewater treatment works in Knightstown, Henry County, Indiana treating an average of 0.28 million gallons per day against a permitted design capacity of 0.8 MGD, serving about 2,140 residents. Treatment on site includes clarifiers. It discharges under NPDES permit IN0040177 (effective), which expires in June 2028, with 21 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 21
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Knightstown WWTP.
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Nearby wastewater treatment plants in Indiana
Carthage · 5 mi away
0.04 MGD
Kennard · 8 mi away
0.02 MGD
Shirley · 8 mi away
—
New Castle · 11 mi away
2.66 MGD
Greenfield · 13 mi away
2.7 MGD
Morristown · 13 mi away
0.37 MGD
Rushville · 13 mi away
0.81 MGD
Homer · 14 mi away
0.05 MGD
Knightstown 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.