Clean Water Act discharge permit · NPDES MTR109818
YELLOWSTONE CLUB LOT 851, Big Sky, MT: NPDES MTR109818 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
YELLOWSTONE CLUB LOT 851, held by SDI, LLC dba Dowbuilt, holds NPDES permit MTR109818, which discharges to South Fork West Fork Gallatin River. EPA’s file records it issued October 17, 2022 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for YELLOWSTONE CLUB LOT 851: 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 MTR109818.
Identity
| Facility as filed | YELLOWSTONE CLUB LOT 851 |
|---|---|
| Permittee as filed | SDI, LLC dba Dowbuilt |
| NPDES ID | MTR109818 |
| 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 | October 17, 2022 |
| Expiration date | December 31, 2022 |
| Address | Big Sky, MT 59716 |
| Receiving water | SOUTH FORK WEST FORK GALLATIN RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | South Fork West Fork Gallatin River (HUC 100200080201) |
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 MTR109818.
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 MTR109818.
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
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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 MTR109818 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.