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Clean Water Act discharge permit · NPDES MTR111875

GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3, Great Falls, MT: NPDES MTR111875 discharge permit, effluent exceedances, inspections, penalties

GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3, held by capcon llc, holds NPDES permit MTR111875, which discharges to Missouri River. EPA’s file records it issued June 8, 2026 and expiring December 31, 2027. 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 GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3: 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 MTR111875.

Identity

Facility as filedGREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3
Permittee as filedcapcon llc
NPDES IDMTR111875
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJune 8, 2026
Expiration dateDecember 31, 2027
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 MTR111875.

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 MTR111875.

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, MTR111875.

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  • One permit holder — $99/month
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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 MTR111875 there.

Nearby on the register

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

What this page shows

The Great Falls Downtown Drainage Improvements Phase 3 permit, filed to CAPCON LLC under NPDES ID MTR111875, is one of 132 storm water construction permits in Cascade County and one of 83 NPDES permits in the Missouri River-Great Falls subwatershed. It lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.