NPDES permits in Kentucky
193 permits held by publicly owned wastewater treatment plants · issued by KDOW
Effective
169
Administratively continued
20
Expired
4
Total tracked
193
Kentucky Energy and Environment Cabinet, Division of Water (KDOW) runs the NPDES program in Kentucky under delegation from EPA Region 4, issuing and enforcing the discharge permits listed here. Klarifi tracks 193 permits held by publicly owned treatment plants in the state, with status, expiry, design flow and three-year compliance for each. Agency website →
An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.
Permit renewals by year
2029: 32 permits
2030: 48 permits
2031: 29 permits
Largest permit holders in Kentucky
| Facility | City | Avg flow (MGD) | Design (MGD) | NPDES permit | Status | Expires | Violations (3y) |
|---|---|---|---|---|---|---|---|
| Bloomfield WWTP | Bloomfield | — | 999 | KYP000086 | Effective | Oct 2029 | — |
| Powderly, City Of | Powderly | — | 999 | KYP000064 | Effective | Nov 2029 | 0 |
| Msd, Morris Forman Plant | Louisville | 56.18 | 120 | KY0022411 | Administratively continued | Sep 2004 | 221 |
| Derek R Guthrie WQTC MSD | Louisville | 39.73 | 60 | KY0078956 | Effective | Apr 2031 | 16 |
| Rwra Max Rhoads WWTP | Owensboro | 6.56 | 15 | KY0020095 | Administratively continued | Dec 2021 | 1 |
| Valley Creek Wastewater Treatment Plant | Elizabethtown | 5.3 | 13 | KY0022039 | Administratively continued | Oct 2023 | 1 |
| Bee Creek WWTP | Murray | 2.83 | 8.75 | KY0072761 | Effective | Sep 2028 | 2 |
| Henderson South STP #2 | Robards | 2.89 | 8 | KY0100293 | Administratively continued | Jun 2012 | 0 |
| Richmond Otter Creek STP | Richmond | 4.57 | 8 | KY0107107 | Effective | Dec 2030 | 4 |
| Strodes Creek STP | Winchester | 3.18 | 7.2 | KY0037991 | Effective | Sep 2026 | 2 |
| Fort Knox WWTP | Fort Knox | 1.64 | 6 | KY0112721 | Effective | Sep 2030 | 2 |
| Hopkinsville Hammond Wood STP | Hopkinsville | 2.67 | 6 | KY0066532 | Effective | Sep 2030 | 2 |
| London STP | London | 3.02 | 5 | KY0021270 | Effective | May 2030 | 20 |
| Morehead WWTP | Morehead | 1.87 | 5 | KY0052752 | Effective | Dec 2030 | 0 |
| Waste Water Treatment | Corbin | 2.5 | 4.5 | KY0020133 | Effective | Jan 2031 | 26 |
| Berea Municipal Utilities WWTP | Berea | 2.23 | 4.3 | KY0079898 | Effective | Nov 2030 | 0 |
| Radcliff STP | Radcliff | 1.86 | 4 | KY0022390 | Effective | Nov 2029 | 1 |
| Middlesboro STP | Middlesboro | 1.94 | 3.6 | KY0072885 | Effective | Oct 2030 | 0 |
| Greenup County Environmental Commission Wastewater Treatment Plant | Russell | 1.63 | 3.5 | KY0048348 | Effective | May 2030 | 0 |
| Harrodsburg WWTP Expansion | Harrodsburg | 1.39 | 3.5 | KY0027421 | Effective | Dec 2027 | 75 |
| Morganfield WWTP | Morganfield | 0.54 | 3.5 | KY0021440 | Effective | May 2031 | 27 |
| Mount Washington STP | Mt Washington | 0.91 | 3.5 | KY0033804 | Effective | Nov 2030 | 0 |
| Bardstown Wastewater Treatment Plant - Town Creek | Bardstown | — | 3 | KY0021237 | Effective | Sep 2029 | 0 |
| Hazard, City Of | Hazard | 1.48 | 3 | KY0020079 | Effective | Aug 2030 | 8 |
| Mount Sterling Hinkston Creek STP | Mt Sterling | 1.62 | 3 | KY0104400 | Effective | Dec 2027 | 14 |
NPDES permits in Kentucky: 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.