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Clean Water Act discharge permit · NPDES MTR103871

PPL MONTANA - GREAT FALLS 100KV GENERATION INTERCONNECTION PROJ, Great Falls, MT: NPDES MTR103871 discharge permit, effluent exceedances, inspections, penalties

PPL MONTANA - GREAT FALLS 100KV GENERATION INTERCONNECTION PROJ, held by PPL MONTANA LLC, holds NPDES permit MTR103871, which discharges to Missouri River. EPA’s file records it issued September 9, 2010 and expiring December 31, 2011. 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 PPL MONTANA - GREAT FALLS 100KV GENERATION INTERCONNECTION PROJ: 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 MTR103871.

Identity

Facility as filedPPL MONTANA - GREAT FALLS 100KV GENERATION INTERCONNECTION PROJ
Permittee as filedPPL MONTANA LLC
NPDES IDMTR103871
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
IssuedSeptember 9, 2010
Expiration dateDecember 31, 2011
Issuing agencyMONTANA DEQ
AddressGreat Falls, MT 59404
Receiving waterMISSOURI RIVER
Receiving water impaired303(D) Listed
SubwatershedMissouri River-Rainbow Dam (HUC 100301021204)

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 MTR103871.

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 MTR103871.

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, MTR103871.

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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 MTR103871 there.

Nearby on the register

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

What this page shows

Of the 128 storm water construction permits in Cascade County, counting PPL MONTANA - GREAT FALLS 100KV GENERATION INTERCONNECTION PROJ, 6.3% were issued earlier. Cascade County's 132 storm water construction permits on the register carry 6.8% with a violation on file. The Missouri River-Rainbow Dam subwatershed counts 32 NPDES permits.