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Clean Water Act discharge permit · NPDES MTG071451

GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3, Great Falls, MT: NPDES MTG071451 discharge permit, effluent exceedances, inspections, penalties

GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3, held by capcon llc, holds NPDES permit MTG071451, which discharges to Missouri River. EPA’s file records it issued July 2, 2026 and expiring April 30, 2030.

GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3, Great Falls, Montana: Coverage under a general permit MTG071451, held by capcon llc; Effective; issued July 2, 2026, term to April 30, 2030; discharges to MISSOURI RIVER.

  • Turbidity: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Duration: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Oil and grease visual: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Outfall observation,visual, y/n response: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Other permits held by capcon llc

GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3 among its neighbors

EPA’s permit file holds 83 discharge permits in the Missouri River-Great Falls subwatershed (HUC 100301021201), MTG071451 among them. Its county holds 220, 1 of them major permits; MTG071451 is a minor permit.

Other permits in the Missouri River-Great Falls subwatershed (HUC 100301021201)

  • 13TH STREET SOUTH RECONSTRUCTION, Great Falls: MTR106984, minor permit, discharging to Upper Missouri-Dearborn, permit term to December 31, 2017
  • 9TH STREET NE WATER MAIN, Great Falls: MTG071426, not classed, discharging to MISSOURI RIVER
  • ACM SMELTER AND REFINERY, Great Falls: MTR000359, minor permit, discharging to MISSOURI RIVER, permit term to September 30, 2011
  • ADF INTERNATIONAL, Great Falls: MTR000546, minor permit, discharging to MISSOURI RIVER, permit term to January 31, 2023
  • ADF INTERNATIONAL, Great Falls: MTR111951, minor permit, discharging to MISSOURI RIVER, permit term to December 31, 2027
  • ADMIRAL BEVERAGE, Great Falls: MTR111412, minor permit, discharging to MISSOURI RIVER, permit term to December 31, 2027
  • ANDERSON STEEL SUPPLY INC, Great Falls: MTR000195, minor permit, discharging to MISSOURI RIVER, permit term to January 31, 2023
  • BAY DRIVE DEVELOPMENT, Great Falls: MTR111559, minor permit, discharging to MISSOURI RIVER, permit term to December 31, 2027
  • BEEHIVE HOMES, Great Falls: MTR108084, minor permit, discharging to MISSOURI RIVER, permit term to December 31, 2022
  • BENEFIS HEALTH SYSTEM (EMERGENCY DEPARTMENT), Great Falls: MTR106913, minor permit, discharging to Upper Missouri-Dearborn, permit term to December 31, 2017

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, and 5 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTG071451.

Identity

Facility as filedGREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3
Permittee as filedcapcon llc
NPDES IDMTG071451
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 2, 2026
Expiration dateApril 30, 2030
AddressGreat Falls, MT 59401
Receiving waterMISSOURI RIVER
Receiving water impaired303(D) Listed
SubwatershedMissouri River-Great Falls (HUC 100301021201)

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
Turbidity200
Oil & Grease100
Duration100
Oil and grease visual100
Outfall observation,visual, y/n response100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG071451.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTG071451.

Inspections

EPA’s inspection file holds no inspection for NPDES MTG071451.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MTG071451.

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Nearby on the register

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

What this page shows

The page covers Clean Water Act discharge permit NPDES MTG071451 for GREAT FALLS DOWNTOWN DRAINAGE IMPROVEMENTS PHASE 3 in Great Falls, MT, held by capcon llc and discharging to the Missouri River. It lists the permit as Effective and a Minor Discharger class facility, with 5 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.