Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES MTR104528

UNITED MATERIALS OF GREAT FALLS - 2012 IMPROVEMENTS TERMINAL PARKING LOT EXPANSI, Great Falls, MT: NPDES MTR104528 discharge permit, effluent exceedances, inspections, penalties

UNITED MATERIALS OF GREAT FALLS - 2012 IMPROVEMENTS TERMINAL PARKING LOT EXPANSI, held by UNITED MATERIALS OF GREAT FALLS INC, holds NPDES permit MTR104528, which discharges to Missouri River. EPA’s file records it issued May 3, 2012 and expiring December 31, 2012. 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 UNITED MATERIALS OF GREAT FALLS - 2012 IMPROVEMENTS TERMINAL PARKING LOT EXPANSI: its NPDES ID, its permit type and status, its dates, its address in Great Falls, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR104528.

Identity

Facility as filedUNITED MATERIALS OF GREAT FALLS - 2012 IMPROVEMENTS TERMINAL PARKING LOT EXPANSI
Permittee as filedUNITED MATERIALS OF GREAT FALLS INC
NPDES IDMTR104528
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
ProgramConstruction stormwater
IssuedMay 3, 2012
Expiration dateDecember 31, 2012
Issuing agencyMONTANA DEQ
AddressGreat Falls, MT 59401
Receiving waterMISSOURI RIVER
Receiving water impaired303(D) Listed
SubwatershedMissouri River-Great Falls (HUC 100301021201)

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 MTR104528.

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 MTR104528.

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, MTR104528.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 MTR104528 there.

Nearby on the register

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

What this page shows

The UNITED MATERIALS OF GREAT FALLS - 2012 IMPROVEMENTS TERMINAL PARKING LOT EXPANSI permit is one of 132 storm water construction permits in Cascade County on EPA's NPDES register, and it sits among 83 NPDES permits in the Missouri River-Great Falls subwatershed, this one included. Among the 128 storm water construction permits in Cascade County, 15.6% were issued earlier than this one, and it has no pollutants under a numeric limit or with an effluent exceedance on file.