Clean Water Act discharge permit · NPDES KY0114073
FERROGLOBE USA MINING, LLC, Rockholds, KY: NPDES KY0114073 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
FERROGLOBE USA MINING, LLC, held by Ferroglobe USA Mining, LLC, holds NPDES permit KY0114073. EPA’s file records it issued April 29, 2025 and expiring April 30, 2030. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | FERROGLOBE USA MINING, LLC |
|---|---|
| Permittee as filed | Ferroglobe USA Mining, LLC |
| NPDES ID | KY0114073 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 29, 2025 |
| Expiration date | April 30, 2030 |
| Address | Rockholds, KY 40759 |
| Subwatershed | Big Indian Creek (HUC 051301010401) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 21Under a numeric limit
- 2With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Biotic Index | 4 | 2 | 2 | December 31, 2025 | |
| Oxygen, dissolved [DO] | 4 | 3 | 0 | ||
| Specific conductance | 102 | 0 | 0 | ||
| pH | 102 | 0 | 0 | ||
| Sulfate, total [as SO4] | 102 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 102 | 0 | 0 | ||
| Date of Sample Collection | 94 | 0 | 0 | ||
| Date of Storm Event | 94 | 0 | 0 | ||
| Precipitation volume | 94 | 0 | 0 | ||
| Solids, settleable | 83 | 0 | 0 | ||
| Solids, total suspended | 80 | 0 | 0 | ||
| Iron, total recoverable | 80 | 0 | 0 | ||
| Manganese, total recoverable | 72 | 0 | 0 | ||
| Selenium, dry weight | 20 | 0 | 0 | ||
| Selenium, total recoverable | 18 | 0 | 0 | ||
| Report due [yrmoda] | 9 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 8 | 0 | 0 | ||
| Turbidity | 8 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 8 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 8 | 0 | 0 | ||
| Toxicity, Chronic | 5 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES KY0114073.
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
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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 KY0114073 there.
Nearby on the register
- Discharge permits in Rockholds
- Every permit record in Rockholds, A to Z
- Discharge permits in Kentucky
- Every permit record in Kentucky, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.