Clean Water Act discharge permit · NPDES MTG071464

W.O. 26-01 - CITY OF BILLINGS - SEWER MAIN REPLACEMENTS, Billings, MT: NPDES MTG071464 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
5Pollutants under a numeric limit
0Pollutants with an effluent exceedance

W.O. 26-01 - CITY OF BILLINGS - SEWER MAIN REPLACEMENTS, held by WESTERN MUNICIPAL CONSTRUCTION INC, holds NPDES permit MTG071464, which discharges to Suburban Ditch. EPA’s file records it issued July 21, 2026 and expiring April 30, 2030. 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 W.O. 26-01 - CITY OF BILLINGS - SEWER MAIN REPLACEMENTS: its NPDES ID, its permit type and status, its dates, its address in Billings, Montana, its receiving water, and 5 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTG071464.

Identity

Facility as filed	W.O. 26-01 - CITY OF BILLINGS - SEWER MAIN REPLACEMENTS
Permittee as filed	WESTERN MUNICIPAL CONSTRUCTION INC
NPDES ID	MTG071464
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	July 21, 2026
Expiration date	April 30, 2030
Address	Billings, MT 59102
Receiving water	SUBURBAN DITCH
Subwatershed	Hogans Slough (HUC 100700041003)

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

Effluent limits and exceedances

5Pollutants on file
5Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Turbidity	4	0	0
Oil & Grease	2	0	0
Duration	2	0	0
Oil and grease visual	2	0	0
Outfall observation,visual, y/n response	2	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG071464.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTG071464.

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 MTG071464 there.

Nearby on the register

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

This page covers NPDES discharge permit MTG071464, held by WESTERN MUNICIPAL CONSTRUCTION INC for W.O. 26-01 - CITY OF BILLINGS - SEWER MAIN REPLACEMENTS in Billings, MT, with a receiving water of Suburban Ditch. The permit is listed as Effective with a Minor discharger class, and the register shows 5 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.