Clean Water Act discharge permit · NPDES MTR111791
IIG THOMPSON FALLS REROUTE MTR111791, Thompson Falls, MT: NPDES MTR111791 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
IIG THOMPSON FALLS REROUTE MTR111791, held by Intermountain Infrastructure Group, LLC (IIG), holds NPDES permit MTR111791, which discharges to Clark Fork. EPA’s file records it issued May 5, 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 IIG THOMPSON FALLS REROUTE MTR111791: its NPDES ID, its permit type and status, its dates, its address in Thompson Falls, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111791.
Identity
| Facility as filed | IIG THOMPSON FALLS REROUTE MTR111791 |
|---|---|
| Permittee as filed | Intermountain Infrastructure Group, LLC (IIG) |
| NPDES ID | MTR111791 |
| 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 | May 5, 2026 |
| Expiration date | December 31, 2027 |
| Address | Thompson Falls, MT 59873 |
| Receiving water | CLARK FORK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cherry Creek (HUC 170102130513) |
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 MTR111791.
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 MTR111791.
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, MTR111791.
Start the watch
- 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 MTR111791 there.
Nearby on the register
- Discharge permits in Thompson Falls
- Every permit record in Thompson Falls, 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.