Hyden STP
Hyden, KY · Leslie County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- 0.2 MGD
- NPDES permit
- KY0021245
- Expired
- Permit expires
- August 2025
- Population served
- 2,055
- CWNS 2022
Hyden STP is a publicly owned wastewater treatment works in Hyden, Leslie County, Kentucky treating an average of 0.09 million gallons per day against a permitted design capacity of 0.2 MGD, serving about 2,055 residents. Treatment on site includes clarifiers, aerated lagoons, carrousels / oxidation ditches, disinfection, uv, suspended growth, aerobic. It discharges under NPDES permit KY0021245 (expired), which expires in August 2025, with 106 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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Aerated lagoons
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Carrousels / oxidation ditches
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Disinfection, UV
unit processSuspended Growth, Aerobic
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Compliance snapshot (last 3 years)
- Total violations
- 106
- Effluent violations
- 71
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hyden STP.
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Nearby wastewater treatment plants in Kentucky
Hazard · 12 mi away
1.48 MGD
Chavies · 13 mi away
0.009 MGD
Vicco · 17 mi away
0.03 MGD
Loyall · 22 mi away
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Harlan · 23 mi away
0.94 MGD
Hindman · 23 mi away
0.04 MGD
Evarts · 24 mi away
0.06 MGD
Cumberland · 24 mi away
0.34 MGD
Hyden 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 November 5, 2025.