Clean Water Act discharge permit · NPDES MTG071469

LATTICE MATERIALS BUILDING, Bozeman, MT: NPDES MTG071469 discharge permit, effluent exceedances, inspections, penalties

Name: LATTICE MATERIALS BUILDING, NPDES MTG071469: Clean Water Act discharge permit record
Creator: Velarion Records
License: https://www.usa.gov/government-works

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

LATTICE MATERIALS BUILDING, held by WILLIAMS CIVIL CONSTRUCTION INC, holds NPDES permit MTG071469, which discharges to Hyalite Creek. EPA’s file records it issued August 13, 2026 and expiring April 30, 2030. 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 LATTICE MATERIALS BUILDING: its NPDES ID, its permit type and status, its dates, its address in Bozeman, 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 MTG071469.

Identity

Facility as filed	LATTICE MATERIALS BUILDING
Permittee as filed	WILLIAMS CIVIL CONSTRUCTION INC
NPDES ID	MTG071469
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 13, 2026
Expiration date	April 30, 2030
Address	Bozeman, MT 59715
Receiving water	HYALITE CREEK
Subwatershed	Lower Hyalite Creek (HUC 100200081002)
SIC	1541 – Industrial Buildings And Warehouses

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

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	2	0	0
Oil & Grease	1	0	0
Duration	1	0	0
Oil and grease visual	1	0	0
Outfall observation,visual, y/n response	1	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG071469.

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 MTG071469.

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 MTG071469 there.

Nearby on the register

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

The Velarion Records page covers NPDES permit MTG071469 for LATTICE MATERIALS BUILDING in Bozeman, MT, held by WILLIAMS CIVIL CONSTRUCTION INC and discharging to HYALITE CREEK. The register lists the permit as Effective, a Minor discharger in class 5, with 5 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The permit was issued August 13, 2026 and expires April 30, 2030, with facts as loaded on October 14, 2026.