Clean Water Act discharge permit · NPDES MTR103646
DOYON GOVERNMENT GROUP - MAFB WEAPONS STORAGE AREA PHASE I, Great Falls, MT: NPDES MTR103646 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
DOYON GOVERNMENT GROUP - MAFB WEAPONS STORAGE AREA PHASE I, held by DOYON GOVERNMENT GROUP, holds NPDES permit MTR103646, which discharges to Missouri River. EPA’s file records it issued January 28, 2010 and expiring December 31, 2011. 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 DOYON GOVERNMENT GROUP - MAFB WEAPONS STORAGE AREA PHASE I: 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 MTR103646.
Identity
| Facility as filed | DOYON GOVERNMENT GROUP - MAFB WEAPONS STORAGE AREA PHASE I |
|---|---|
| Permittee as filed | DOYON GOVERNMENT GROUP |
| NPDES ID | MTR103646 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Federal facility |
| Program | Construction stormwater |
| Issued | January 28, 2010 |
| Expiration date | December 31, 2011 |
| Issuing agency | MONTANA DEQ |
| Address | Great Falls, MT 59401 |
| Receiving water | MISSOURI RIVER |
| 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 MTR103646.
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 MTR103646.
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, MTR103646.
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 MTR103646 there.
Nearby on the register
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.