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Clean Water Act discharge permit · NPDES MTR109172

RANCH #5, Big Sky, MT: NPDES MTR109172 discharge permit, effluent exceedances, inspections, penalties

RANCH #5, held by YELLOWSTONE DEVELOPMENT LLC, holds NPDES permit MTR109172, which discharges to Second Yellow Mule Creek. EPA’s file records it issued September 30, 2021 and expiring December 31, 2022. 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 filedRANCH #5
Permittee as filedYELLOWSTONE DEVELOPMENT LLC
NPDES IDMTR109172
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedSeptember 30, 2021
Expiration dateDecember 31, 2022
AddressBig Sky, MT 59716
Receiving waterSECOND YELLOW MULE CREEK
Receiving water impaired303(D) Listed
SubwatershedSouth Fork West Fork Gallatin River (HUC 100200080201)
SIC1521 – Single-Family Housing 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 MTR109172.

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
June 30, 2022WW Storm Water Construction - Failure to properly install/implement BMPsST6
June 30, 2022WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMPST6
June 30, 2022WW Storm Water Construction - Failure to Conduct InspectionsST6

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 MTR109172 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 the Clean Water Act discharge permit NPDES MTR109172 for RANCH #5 in Big Sky, MT, held by YELLOWSTONE DEVELOPMENT LLC and discharging to SECOND YELLOW MULE CREEK, with the permit listed as Effective and issued September 30, 2021 with an expiration date of December 31, 2022. The page reports 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and the permit's Minor Discharger class is listed as 0.