Velarion Records

Clean Water Act discharge permit · NPDES MTR110428

WEAPONS STORAGE FACILITY, Malmstrom Afb, MT: NPDES MTR110428 discharge permit, effluent exceedances, inspections, penalties

WEAPONS STORAGE FACILITY, held by Archer Western Construction, holds NPDES permit MTR110428, which discharges to Missouri River. EPA’s file records it issued September 15, 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 WEAPONS STORAGE FACILITY: its NPDES ID, its permit type and status, its dates, its address in Malmstrom Afb, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR110428.

Identity

Facility as filedWEAPONS STORAGE FACILITY
Permittee as filedArcher Western Construction
NPDES IDMTR110428
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedSeptember 15, 2023
Expiration dateDecember 31, 2027
AddressMalmstrom Afb, MT 59402
Receiving waterMISSOURI RIVER
SubwatershedMissouri River-Rainbow Dam (HUC 100301021204)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR110428.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR110428.

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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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 MTR110428 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

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