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Clean Water Act discharge permit · NPDES MTL021849

SIDNEY WASTEWATER TREATMENT FACILITY, Sidney, MT: NPDES MTL021849 discharge permit, effluent exceedances, inspections, penalties

SIDNEY WASTEWATER TREATMENT FACILITY holds NPDES permit MTL021849. EPA’s file records it issued March 28, 2025 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 SIDNEY WASTEWATER TREATMENT FACILITY: its NPDES ID, its permit type and status, its dates, its address in Sidney, Montana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTL021849.

Identity

Facility as filedSIDNEY WASTEWATER TREATMENT FACILITY
Permittee as filedSIDNEY WASTEWATER TREATMENT FACILITY
NPDES IDMTL021849
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
IssuedMarch 28, 2025
Expiration dateDecember 31, 2025
AddressSidney, MT 59270
SubwatershedCity of Sidney-Yellowstone River (HUC 101000042704)

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 MTL021849.

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 MTL021849.

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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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 MTL021849 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES MTL021849 for the SIDNEY WASTEWATER TREATMENT FACILITY in Sidney, MT, which is administratively continued and classed as a Minor Discharger. The page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it reports no violation on file for this permit.