Clean Water Act discharge permit · NPDES MTR108792
MORONY DAM, Great Falls, MT: NPDES MTR108792 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MORONY DAM, held by McMillen Jacobs Associates, holds NPDES permit MTR108792, which discharges to Missouri River. EPA’s file records it issued March 19, 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.
What the register holds for MORONY DAM: its NPDES ID, its permit type and status, its dates, its address in Great Falls, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR108792.
Identity
| Facility as filed | MORONY DAM |
|---|---|
| Permittee as filed | McMillen Jacobs Associates |
| NPDES ID | MTR108792 |
| 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 | March 19, 2021 |
| Expiration date | December 31, 2022 |
| Address | Great Falls, MT 59404 |
| Receiving water | MISSOURI RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Missouri River-Rainbow Dam (HUC 100301021204) |
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 MTR108792.
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 MTR108792.
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, MTR108792.
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 MTR108792 there.
Nearby on the register
- Discharge permits in Great Falls
- Every permit record in Great 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.