New Castle STP
899 Reservoir Rd, New Castle, KY 40050 · Henry County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- 0.3 MGD
- NPDES permit
- KY0031828
- Effective
- Permit expires
- October 2030
- Population served
- 1,050
- CWNS 2022
New Castle STP is a publicly owned wastewater treatment works in New Castle, Henry County, Kentucky treating an average of 0.17 million gallons per day against a permitted design capacity of 0.3 MGD, serving about 1,050 residents. It discharges under NPDES permit KY0031828 (effective), which expires in October 2030, with 12 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at New Castle STP.
Available with a free Klarifi account
See the full treatment train at New Castle STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 12
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at New Castle STP.
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Nearby wastewater treatment plants in Kentucky
Eminence · 5 mi away
0.67 MGD
La Grange · 12 mi away
1.02 MGD
Bedford · 13 mi away
0.12 MGD
Carrollton · 14 mi away
1.15 MGD
La Grange · 14 mi away
0.79 MGD
La Grange · 16 mi away
0.04 MGD
Simpsonville · 17 mi away
0.4 MGD
Milton · 23 mi away
0.08 MGD
New Castle STP: 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 March 30, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms