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Clean Water Act discharge permit · NPDES MTG870086

AFB MOSQUITO CONTROL, Great Falls, MT: NPDES MTG870086 discharge permit, effluent exceedances, inspections, penalties

AFB MOSQUITO CONTROL, held by MALMSTROM AIR FORCE BASE, holds NPDES permit MTG870086, which discharges to Cascade. EPA’s file records it issued July 24, 2019 and expiring October 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for AFB MOSQUITO CONTROL: 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 MTG870086.

Identity

Facility as filedAFB MOSQUITO CONTROL
Permittee as filedMALMSTROM AIR FORCE BASE
NPDES IDMTG870086
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 24, 2019
Expiration dateOctober 31, 2021
AddressGreat Falls, MT 59401
Receiving waterCascade
SubwatershedMissouri River-Rainbow Dam (HUC 100301021204)
SIC9199 – General Government

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTG870086.

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 MTG870086.

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, MTG870086.

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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 MTG870086 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The AFB MOSQUITO CONTROL general permit coverage (NPDES ID MTG870086) sits among 22 general permit coverages in Cascade County, and 31.8% of those 22 coverages carry a violation on file. Its subwatershed, Missouri River-Rainbow Dam, contains 32 NPDES permits, this one included. The permit records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.