Clean Water Act discharge permit · NPDES MTR000809
YELLOW DOG MINE, Philipsburg, MT: NPDES MTR000809 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
YELLOW DOG MINE, held by Potentate Mining LLC, holds NPDES permit MTR000809, which discharges to West Fork Rock Creek. EPA’s file records it issued May 22, 2023 and expiring January 31, 2028. 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 | YELLOW DOG MINE |
|---|---|
| Permittee as filed | Potentate Mining LLC |
| NPDES ID | MTR000809 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | May 22, 2023 |
| Expiration date | January 31, 2028 |
| Address | Philipsburg, MT 59858 |
| Receiving water | WEST FORK ROCK CREEK |
| Subwatershed | Lower West Fork Ross Creek (HUC 170102021004) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 1Pollutants on file
- 1Under 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 18 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTR000809.
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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 26, 2024 | WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| June 26, 2024 | WW Storm Water Non-Construction - Failure to properly install/implement BMPs | ST6 |
| June 26, 2024 | WW Storm Water Non-Construction - CWA §308 Failure to submit required permit application info | 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
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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 MTR000809 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.