Clean Water Act discharge permit · NPDES MT0032042
ROSEBUD MINE - MINE AREA AM5, Colstrip, MT: NPDES MT0032042 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ROSEBUD MINE - MINE AREA AM5, held by Westmoreland Rosebud Mining LLC, holds NPDES permit MT0032042, which discharges to East Fork Armells Creek. EPA’s file records it issued August 12, 2022 and expiring September 30, 2027. 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 | ROSEBUD MINE - MINE AREA AM5 |
|---|---|
| Permittee as filed | Westmoreland Rosebud Mining LLC |
| NPDES ID | MT0032042 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | August 12, 2022 |
| Expiration date | September 30, 2027 |
| Address | Colstrip, MT 59323 |
| Receiving water | EAST FORK ARMELLS CREEK |
| Subwatershed | Richard Coulee (HUC 101000030506) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
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 |
|---|---|---|---|---|---|
| Sodium Absorption Ratio | 218 | 32 | 0 | ||
| Flow rate | 108 | 0 | 0 | ||
| Conductivity | 108 | 0 | 0 | ||
| pH | 108 | 0 | 0 | ||
| Solids, total suspended | 108 | 0 | 0 | ||
| Oil & Grease | 108 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 108 | 0 | 0 | ||
| Iron, total recoverable | 108 | 0 | 0 | ||
| Selenium, total recoverable | 108 | 0 | 0 | ||
| Aluminum, dissolved [as Al] | 108 | 0 | 0 | ||
| Solids, settleable | 36 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MT0032042.
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 MT0032042.
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 MT0032042 there.
Nearby on the register
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- Every permit record in Colstrip, A to Z
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.