Clean Water Act discharge permit · NPDES KY0053767
ESTRON CHEMICAL INC, Calvert City, KY: NPDES KY0053767 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
ESTRON CHEMICAL INC, held by Estron Chemical Inc, holds NPDES permit KY0053767, which discharges to Cypress Crk. EPA’s file records it issued December 23, 2015 and expiring January 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ESTRON CHEMICAL INC |
|---|---|
| Permittee as filed | Estron Chemical Inc |
| NPDES ID | KY0053767 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 23, 2015 |
| Expiration date | January 31, 2021 |
| Address | Calvert City, KY 42029 |
| Receiving water | CYPRESS CRK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Upper Cypress Creek (HUC 060400060501) |
| NAICS | 325110 – Petrochemical Manufacturing |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler KYD092570407; ICIS-AIR source KY0000002115700015 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 9Pollutants on file
- 6Under a numeric limit
- 9With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| Iron, total recoverable | 0 | 228 | 16 | July 31, 2011 | 1,960% over the limit |
| Temperature, water deg. fahrenheit | 2 | 156 | 2 | July 31, 2011 | 2% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 278 | 0 | ||
| pH | 2 | 271 | 0 | ||
| Solids, total suspended | 2 | 270 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 219 | 0 | ||
| Oil and grease | 0 | 218 | 0 | ||
| Oil & Grease | 2 | 50 | 0 | ||
| Trichlorofluoromethane | 4 | 44 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 31, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| March 31, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| February 8, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| February 8, 2022 | Management Practice Violations - Best Management Practice Deficiencies | 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.
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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 KY0053767 there.
Nearby on the register
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- Every permit record in Calvert City, A to Z
- Discharge permits in Kentucky
- Every permit record in Kentucky, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.