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Clean Water Act discharge permit · NPDES MTL020834

CITY OF HARDIN, Hardin, MT: NPDES MTL020834 discharge permit, effluent exceedances, inspections, penalties

CITY OF HARDIN holds NPDES permit MTL020834. EPA’s file records it issued January 1, 2021 and expiring December 31, 2025. 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 CITY OF HARDIN: its NPDES ID, its permit type and status, its dates, its address in Hardin, Montana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTL020834.

Identity

Facility as filedCITY OF HARDIN
Permittee as filedCITY OF HARDIN
NPDES IDMTL020834
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeAssociated permit record
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramBiosolids
IssuedJanuary 1, 2021
Expiration dateDecember 31, 2025
AddressHardin, MT 59034
SubwatershedBighorn River-Whiskey Coulee (HUC 100800150603)

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 MTL020834.

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 MTL020834.

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, MTL020834.

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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 MTL020834 there.

Nearby on the register

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

What this page shows

The CITY OF HARDIN biosolids permit, NPDES ID MTL020834, is one of 2 biosolids permits on the EPA's NPDES register in Big Horn County, Montana. It also sits among 3 NPDES permits in the Bighorn River-Whiskey Coulee subwatershed (HUC 100800150603), and it shows 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.