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Clean Water Act discharge permit · NPDES MTR106800

HUNGRY HORSE NATURAL GAS PIPELINE REROUTE, Hungry Horse, MT: NPDES MTR106800 discharge permit, effluent exceedances, inspections, penalties

HUNGRY HORSE NATURAL GAS PIPELINE REROUTE, held by NORTHWESTERN ENERGY, holds NPDES permit MTR106800, which discharges to South Fork Flathead. EPA’s file records it issued March 13, 2017 and expiring December 31, 2017. 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 HUNGRY HORSE NATURAL GAS PIPELINE REROUTE: its NPDES ID, its permit type and status, its dates, its address in Hungry Horse, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR106800.

Identity

Facility as filedHUNGRY HORSE NATURAL GAS PIPELINE REROUTE
Permittee as filedNORTHWESTERN ENERGY
NPDES IDMTR106800
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
IssuedMarch 13, 2017
Expiration dateDecember 31, 2017
Issuing agencyMT DEQ
AddressHungry Horse, MT 59919
Receiving waterSouth Fork Flathead
SubwatershedHungry Horse Reservoir-Aurora Creek (HUC 170102090707)
SIC1623 – Water, Sewer, And Utility Lines

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 MTR106800.

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 MTR106800.

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, MTR106800.

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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 MTR106800 there.

Nearby on the register

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

What this page shows

The HUNGRY HORSE NATURAL GAS PIPELINE REROUTE permit is one of 3 NPDES permits in the Hungry Horse Reservoir-Aurora Creek subwatershed, counting this one, and it sits among 220 storm water construction permits in Flathead County, this one included. Of those 220, 24.2% of the 211 storm water construction permits in the county were issued earlier than this one, and it records no pollutants under a numeric limit and no effluent exceedances.