Clean Water Act discharge permit · NPDES MTX000264
WINSTON MINE, Winston, MT: NPDES MTX000264 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
WINSTON MINE, held by WINSTON GOLD CORP, holds NPDES permit MTX000264, which discharges to Ground Water. EPA’s file records it issued November 23, 2021 and expiring December 31, 2026. 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 | WINSTON MINE |
|---|---|
| Permittee as filed | WINSTON GOLD CORP |
| NPDES ID | MTX000264 |
| Permit status | Effective |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 23, 2021 |
| Expiration date | December 31, 2026 |
| Address | Winston, MT 59647 |
| Receiving water | GROUND WATER |
| Subwatershed | Canyon Ferry Lake-Kelly Springs Gulch (HUC 100301011102) |
| Other EPA IDs (FRS) | RCRA handler MTR000212167 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 1With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Flow rate | 2 | 1 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Fluoride, total [as F] | 1 | 0 | 0 | ||
| Arsenic, total [as As] | 1 | 0 | 0 | ||
| Cadmium, total [as Cd] | 1 | 0 | 0 | ||
| Lead, total [as Pb] | 1 | 0 | 0 | ||
| Nickel, total [as Ni] | 1 | 0 | 0 | ||
| Strontium, total [as Sr] | 1 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 | ||
| Antimony, total [as Sb] | 1 | 0 | 0 | ||
| Mercury, total [as Hg] | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTX000264.
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 MTX000264.
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, MTX000264.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MTX000264 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.