Clean Water Act discharge permit · NPDES MTR108772
US 12 BANK STABILIZATION PHASE 2, Roundup, MT: NPDES MTR108772 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
US 12 BANK STABILIZATION PHASE 2, held by Montana Department of Transportation, holds NPDES permit MTR108772, which discharges to Musselshell River. EPA’s file records it issued February 16, 2021 and expiring December 31, 2022. 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 | US 12 BANK STABILIZATION PHASE 2 |
|---|---|
| Permittee as filed | Montana Department of Transportation |
| NPDES ID | MTR108772 |
| 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 | February 16, 2021 |
| Expiration date | December 31, 2022 |
| Address | Roundup, MT 59072 |
| Receiving water | MUSSELSHELL RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Musselshell River-Stag Run (HUC 100402012307) |
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 MTR108772.
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 |
|---|---|---|
| May 11, 2021 | WW Storm Water Construction - Failure to properly operate and maintain BMPs | ST6 |
| May 11, 2021 | WW Storm Water Construction - Failure to properly install/implement BMPs | ST6 |
| May 11, 2021 | WW Storm Water Construction - Failure to Conduct Inspections | 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 MTR108772 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.