Clean Water Act discharge permit · NPDES MTR109442
DERN-RYU RESIDENCE SPANISH PEAKS RESORT, Big Sky, MT: NPDES MTR109442 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
DERN-RYU RESIDENCE SPANISH PEAKS RESORT, held by Dern-Ryu Properties LLC, holds NPDES permit MTR109442, which discharges to Unnamed Creek To Stony Creek To Middle Fk Of West. EPA’s file records it issued April 19, 2022 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for DERN-RYU RESIDENCE SPANISH PEAKS RESORT: 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 MTR109442.
Identity
| Facility as filed | DERN-RYU RESIDENCE SPANISH PEAKS RESORT |
|---|---|
| Permittee as filed | Dern-Ryu Properties LLC |
| NPDES ID | MTR109442 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | April 19, 2022 |
| Expiration date | December 31, 2022 |
| Address | Big Sky, MT 59716 |
| Receiving water | unnamed creek to Stony creek to Middle fk of west |
| Subwatershed | West Fork Gallatin River (HUC 100200080202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR109442.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR109442.
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 MTR109442 there.
Nearby on the register
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.