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Clean Water Act discharge permit · NPDES MTG870052

MONTANA FWP - CENTRAL MT MULTI COUNTY PISCICIDE PERMIT, Hardin, MT: NPDES MTG870052 discharge permit, effluent exceedances, inspections, penalties

MONTANA FWP - CENTRAL MT MULTI COUNTY PISCICIDE PERMIT, held by MONTANA FISH WILDLIFE AND PARKS, holds NPDES permit MTG870052, which discharges to Various. EPA’s file records it issued November 1, 2016 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 MONTANA FWP - CENTRAL MT MULTI COUNTY PISCICIDE PERMIT: its NPDES ID, its permit type and status, its dates, its address in Hardin, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTG870052.

Identity

Facility as filedMONTANA FWP - CENTRAL MT MULTI COUNTY PISCICIDE PERMIT
Permittee as filedMONTANA FISH WILDLIFE AND PARKS
NPDES IDMTG870052
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
IssuedNovember 1, 2016
Expiration dateOctober 31, 2021
AddressHardin, MT 59034
Receiving waterVARIOUS
Receiving water impaired303(D) Listed
SubwatershedMissouri River-Great Falls (HUC 100301021201)
SIC9511 – Air, Water, & Solid Waste Management

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 MTG870052.

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 MTG870052.

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, MTG870052.

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  • One permit holder — $99/month
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  • 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 MTG870052 there.

Nearby on the register

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

What this page shows

The MONTANA FWP - CENTRAL MT MULTI COUNTY PISCICIDE PERMIT is one of 10 general permit coverages in Big Horn County on the register, and about 33.3% of the 9 general permit coverages there (this one included) were issued before it. Among the 10 Big Horn County general permit coverages, 40.0% have a violation on file, while this permit has none of the pollutants with a numeric limit or effluent exceedances on record. The permit sits among 83 NPDES permits in the Missouri River-Great Falls subwatershed, this one included.