Radcliff STP
Radcliff, KY · Hardin County · Publicly Owned Treatment Works
- Average flow
- 1.86 MGD
- Design flow
- 4 MGD
- NPDES permit
- KY0022390
- Effective
- Permit expires
- November 2029
- Population served
- 23,001
- CWNS 2022
Radcliff STP is a publicly owned wastewater treatment works in Radcliff, Hardin County, Kentucky treating an average of 1.86 million gallons per day against a permitted design capacity of 4 MGD, serving about 23,001 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches, biosolids mechanical dewatering, biosolids thickening and other unit processes. It discharges under NPDES permit KY0022390 (effective), which expires in November 2029, with 1 recorded violation 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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Uncovered lagoons
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Carrousels / oxidation ditches
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Biosolids Mechanical Dewatering
unit processBiosolids Thickening
unit processDisinfection, UV
unit processSuspended Growth, Aerobic
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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
1 verified contact for Radcliff STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Radcliff STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Kentucky
Fort Knox · 3 mi away
1.64 MGD
Vine Grove · 4 mi away
0.47 MGD
West Point · 10 mi away
0.09 MGD
Lebanon Junction · 11 mi away
0.1 MGD
Elizabethtown · 14 mi away
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Elizabethtown · 14 mi away
5.3 MGD
Brandenburg · 16 mi away
0.22 MGD
Louisville · 16 mi away
39.73 MGD
Radcliff 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 September 11, 2026; facility record last updated March 9, 2025.