Clean Water Act discharge permit · NPDES MTR111938
ELECTRIC DISTRIBUTION: WHITE SULPHUR SPRINGS - 604 MCGUIRE RD, White Sulphur Springs, MT: NPDES MTR111938 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ELECTRIC DISTRIBUTION: WHITE SULPHUR SPRINGS - 604 MCGUIRE RD, held by NorthWestern Energy, holds NPDES permit MTR111938, which discharges to Spring Creek. EPA’s file records it issued July 16, 2026 and expiring December 31, 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.
What the register holds for ELECTRIC DISTRIBUTION: WHITE SULPHUR SPRINGS - 604 MCGUIRE RD: its NPDES ID, its permit type and status, its dates, its address in White Sulphur Springs, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111938.
Identity
| Facility as filed | ELECTRIC DISTRIBUTION: WHITE SULPHUR SPRINGS - 604 MCGUIRE RD |
|---|---|
| Permittee as filed | NorthWestern Energy |
| NPDES ID | MTR111938 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | July 16, 2026 |
| Expiration date | December 31, 2027 |
| Address | White Sulphur Springs, MT 59645 |
| Receiving water | SPRING CREEK |
| Subwatershed | Spring Creek (HUC 100301030304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR111938.
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 MTR111938.
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 MTR111938 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.