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Clean Water Act discharge permit · NPDES MTR000203

UNITED MATERIALS OF GREAT FALLS - MONTANA SANDS, Great Falls, MT: NPDES MTR000203 discharge permit, effluent exceedances, inspections, penalties

UNITED MATERIALS OF GREAT FALLS - MONTANA SANDS, held by UNITED MATERIALS OF GREAT FALLS INC, holds NPDES permit MTR000203, which discharges to Sand Coulee Creek. EPA’s file records it issued June 14, 2018 and expiring January 31, 2023. 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 UNITED MATERIALS OF GREAT FALLS - MONTANA SANDS: its NPDES ID, its permit type and status, its dates, its address in Great Falls, Montana, its receiving water, and 2 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR000203.

Identity

Facility as filedUNITED MATERIALS OF GREAT FALLS - MONTANA SANDS
Permittee as filedUNITED MATERIALS OF GREAT FALLS INC
NPDES IDMTR000203
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
ProgramIndustrial stormwater
IssuedJune 14, 2018
Expiration dateJanuary 31, 2023
AddressGreat Falls, MT 59405
Receiving waterSAND COULEE CREEK
SubwatershedLower Sand Coulee Creek (HUC 100301020905)
SIC1442 – Construction Sand And Gravel
Other EPA IDs (FRS)RCRA handler MTR000004721

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended100
Nitrite + Nitrate total [as N]100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTR000203.

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 MTR000203.

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.

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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 MTR000203 there.

Nearby on the register

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

What this page shows

This public-records page covers the Clean Water Act discharge permit NPDES MTR000203, held by UNITED MATERIALS OF GREAT FALLS INC for the UNITED MATERIALS OF GREAT FALLS - MONTANA SANDS facility in Great Falls, MT, which discharges to Sand Coulee Creek. The register lists the permit as administratively continued with a Minor Discharger class 2 rating, 2 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.