Clean Water Act discharge permit · NPDES MTR109924
MARION SHOULDER WIDENING, Marion, MT: NPDES MTR109924 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MARION SHOULDER WIDENING, held by Montana Department of Transportation, holds NPDES permit MTR109924, which discharges to Idaho Creek. EPA’s file records it issued January 26, 2023 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 MARION SHOULDER WIDENING: its NPDES ID, its permit type and status, its dates, its address in Marion, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR109924.
Identity
| Facility as filed | MARION SHOULDER WIDENING |
|---|---|
| Permittee as filed | Montana Department of Transportation |
| NPDES ID | MTR109924 |
| 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 | January 26, 2023 |
| Expiration date | December 31, 2027 |
| Address | Marion, MT 59925 |
| Receiving water | IDAHO CREEK |
| Subwatershed | Middle Ashley Creek (HUC 170102080205) |
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 MTR109924.
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 MTR109924.
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, MTR109924.
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- 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 MTR109924 there.
Nearby on the register
- Discharge permits in Marion
- Every permit record in Marion, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.