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Clean Water Act discharge permit · NPDES MTR111864

PARKING LOT IMPROVEMENTS - MT SCHOOL FOR DEAF & BLIND, Great Falls, MT: NPDES MTR111864 discharge permit, effluent exceedances, inspections, penalties

PARKING LOT IMPROVEMENTS - MT SCHOOL FOR DEAF & BLIND, held by HELENA SAND AND GRAVEL INC, holds NPDES permit MTR111864, which discharges to Missouri River. EPA’s file records it issued June 5, 2026 and expiring December 31, 2027. 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 PARKING LOT IMPROVEMENTS - MT SCHOOL FOR DEAF & BLIND: 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 MTR111864.

Identity

Facility as filedPARKING LOT IMPROVEMENTS - MT SCHOOL FOR DEAF & BLIND
Permittee as filedHELENA SAND AND GRAVEL INC
NPDES IDMTR111864
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJune 5, 2026
Expiration dateDecember 31, 2027
AddressGreat Falls, MT 59405
Receiving waterMISSOURI RIVER
SubwatershedMissouri River-Great Falls (HUC 100301021201)
SIC1542 – Nonresidential Construction

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR111864.

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 MTR111864.

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, MTR111864.

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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 MTR111864 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 NPDES permit MTR111864, a Clean Water Act construction stormwater permit held by Helena Sand and Gravel Inc for PARKING LOT IMPROVEMENTS - MT SCHOOL FOR DEAF & BLIND in Great Falls, MT, discharging to the Missouri River. The permit is listed as Effective, with a Minor discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.