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Clean Water Act discharge permit · NPDES MTR107263

HAPPY RANCH, Big Sky, MT: NPDES MTR107263 discharge permit, effluent exceedances, inspections, penalties

HAPPY RANCH, held by THE PRG GROUP LLC, holds NPDES permit MTR107263, which discharges to Gallatin. EPA’s file records it issued April 27, 2018 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.

What the register holds for HAPPY RANCH: its NPDES ID, its permit type and status, its dates, its address in Big Sky, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR107263.

Identity

Facility as filedHAPPY RANCH
Permittee as filedTHE PRG GROUP LLC
NPDES IDMTR107263
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedApril 27, 2018
Expiration dateDecember 31, 2022
AddressBig Sky, MT 59716
Receiving waterGALLATIN
SubwatershedWest Fork Gallatin River (HUC 100200080202)
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 MTR107263.

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 MTR107263.

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, MTR107263.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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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 MTR107263 there.

Nearby on the register

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

What this page shows

The HAPPY RANCH storm water construction permit, MTR107263, is one of 600 storm water construction permits in Gallatin County, and 6.0% of those permits have a violation on file. The permit sits in the West Fork Gallatin River subwatershed, which holds 74 NPDES permits including this one, and it has no pollutants under a numeric limit and no effluent exceedances.