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Clean Water Act discharge permit · NPDES MTR103540

MDOT - EAST THREE FORKS INTERCHANGE, Three Forks, MT: NPDES MTR103540 discharge permit, effluent exceedances, inspections, penalties

MDOT - EAST THREE FORKS INTERCHANGE, held by MONTANA DEPT OF TRANSPORTATION, holds NPDES permit MTR103540, which discharges to Temporary Detention Ponds. EPA’s file records it issued September 14, 2009 and expiring December 31, 2011. 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 MDOT - EAST THREE FORKS INTERCHANGE: its NPDES ID, its permit type and status, its dates, its address in Three Forks, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR103540.

Identity

Facility as filedMDOT - EAST THREE FORKS INTERCHANGE
Permittee as filedMONTANA DEPT OF TRANSPORTATION
NPDES IDMTR103540
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 14, 2009
Expiration dateDecember 31, 2011
Issuing agencyMONTANA DEQ
AddressThree Forks, MT 59752
Receiving waterTEMPORARY DETENTION PONDS
SubwatershedMadison River-Three Forks (HUC 100200071505)
SIC1611 – Highway And Street 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 MTR103540.

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 MTR103540.

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, MTR103540.

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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 MTR103540 there.

Nearby on the register

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

What this page shows

The MDOT - EAST THREE FORKS INTERCHANGE permit is one of 600 storm water construction permits in Gallatin County on EPA's NPDES register, and among those permits 6.0% have a violation on file. It also sits among 6 NPDES permits in the Madison River-Three Forks subwatershed, and it has no pollutants under a numeric limit and no effluent exceedances on record.