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Clean Water Act discharge permit · NPDES MTR110674

SIMPKINS NORTH PARK TRACT 2-B & 4-B, Bozeman, MT: NPDES MTR110674 discharge permit, effluent exceedances, inspections, penalties

SIMPKINS NORTH PARK TRACT 2-B & 4-B, held by Simkins-Hallin Inc., holds NPDES permit MTR110674, which discharges to East Gallatin River. EPA’s file records it issued April 2, 2024 and expiring December 31, 2027. 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.

Identity

Facility as filedSIMPKINS NORTH PARK TRACT 2-B & 4-B
Permittee as filedSimkins-Hallin Inc.
NPDES IDMTR110674
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedApril 2, 2024
Expiration dateDecember 31, 2027
AddressBozeman, MT 59718
Receiving waterEAST GALLATIN RIVER
SubwatershedEast Gallatin River-Bozeman (HUC 100200081301)
SIC1541 – Industrial Buildings And Warehouses

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 MTR110674.

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

DateWhat EPA recordedAgency
July 10, 2024WW Storm Water Construction - Failure to Conduct InspectionsST6
July 10, 2024WW Storm Water Construction - Failure to properly install/implement BMPsST6
July 10, 2024WW Storm Water Construction - Failure to Maintain RecordsST6

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.

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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 MTR110674 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit MTR110674 for SIMPKINS NORTH PARK TRACT 2-B & 4-B in Bozeman, MT, held by Simkins-Hallin Inc. and discharging to the East Gallatin River, with the status reflecting EPA's permit file as loaded on October 14, 2026. The listed figures are 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit issued April 2, 2024 and expiring December 31, 2027.