Clean Water Act discharge permit · NPDES KY0066605
ISLAND STP, Island, KY: NPDES KY0066605 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
ISLAND STP, held by Island STP, holds NPDES permit KY0066605, which discharges to Green River. EPA’s file records it issued May 10, 2018 and expiring June 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ISLAND STP |
|---|---|
| Permittee as filed | Island STP |
| NPDES ID | KY0066605 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 10, 2018 |
| Expiration date | June 30, 2023 |
| Address | Island, KY 42350 |
| Receiving water | GREEN RIVER |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 22Pollutants on file
- 17Under a numeric limit
- 18With a violation of any kind
- 9With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, percent removal | 1 | 37 | 37 | July 31, 2025 | 167% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 19 | 19 | March 31, 2025 | 99,999% over the limit |
| Solids, suspended percent removal | 1 | 18 | 18 | January 31, 2023 | 307% over the limit |
| pH | 2 | 9 | 6 | June 30, 2026 | |
| Solids, total suspended | 6 | 5 | 5 | December 31, 2018 | 140% over the limit |
| E. coli | 2 | 5 | 5 | February 28, 2025 | 908% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 4 | 4 | January 31, 2013 | 77% over the limit |
| Chlorine, total residual | 2 | 3 | 2 | April 30, 2023 | 637% over the limit |
| Oxygen, dissolved [DO] | 1 | 1 | 1 | March 31, 2010 | 35% over the limit |
| Nitrogen, total [as N] | 4 | 3 | 0 | ||
| Phosphorus, total [as P] | 6 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| Nitrogen, Kjeldahl Total | 2 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 2 | 0 | ||
| Zinc, total recoverable | 0 | 2 | 0 | ||
| Cadmium, total recoverable | 0 | 2 | 0 | ||
| Lead, total recoverable | 0 | 2 | 0 | ||
| Copper, total recoverable | 0 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Nitrite Plus Nitrate Total | 2 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 2 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 14Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 13, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 13, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| December 12, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| December 12, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 10, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| October 10, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| March 9, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 9, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| February 1, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| February 1, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| October 20, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| November 2, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
| November 2, 2017 | Monitoring Violations - No Flow Measurement Device | ST6 |
| November 2, 2017 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, KY0066605.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID KY0066605 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.