Irvine STP
Ky Hwy 499, Irvine, KY 40336 · Estill County · Publicly Owned Treatment Works
- Average flow
- 0.64 MGD
- Design flow
- 2 MGD
- NPDES permit
- KY0025909
- Effective
- Permit expires
- February 2031
- Population served
- 4,527
- CWNS 2022
Irvine STP is a publicly owned wastewater treatment works in Irvine, Estill County, Kentucky treating an average of 0.64 million gallons per day against a permitted design capacity of 2 MGD, serving about 4,527 residents. It discharges under NPDES permit KY0025909 (effective), which expires in February 2031, with 49 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Irvine STP.
Available with a free Klarifi account
See the full treatment train at Irvine STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 49
- Effluent violations
- 49
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Irvine STP.
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Nearby wastewater treatment plants in Kentucky
Stanton · 13 mi away
0.9 MGD
Sharpsburg · 16 mi away
0.05 MGD
Stanton · 16 mi away
0.03 MGD
Beattyville · 16 mi away
0.26 MGD
Berea · 17 mi away
0.03 MGD
Richmond · 17 mi away
5.92 MGD
Berea · 18 mi away
3.37 MGD
Mckee · 19 mi away
0.27 MGD
Irvine 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 November 26, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms