Clean Water Act discharge permit · NPDES MTR111980
TARGHEE PASS-EAST CULVERT REPLACEMENT - CONSTRUCTION STORMWATER, West Yellowstone, MT: NPDES MTR111980 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
TARGHEE PASS-EAST CULVERT REPLACEMENT - CONSTRUCTION STORMWATER, held by CK May Excavating, Inc., holds NPDES permit MTR111980, which discharges to Buttermilk Creek. EPA’s file records it issued July 31, 2026 and expiring December 31, 2027. 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 TARGHEE PASS-EAST CULVERT REPLACEMENT - CONSTRUCTION STORMWATER: its NPDES ID, its permit type and status, its dates, its address in West Yellowstone, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111980.
Identity
| Facility as filed | TARGHEE PASS-EAST CULVERT REPLACEMENT - CONSTRUCTION STORMWATER |
|---|---|
| Permittee as filed | CK May Excavating, Inc. |
| NPDES ID | MTR111980 |
| 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 | July 31, 2026 |
| Expiration date | December 31, 2027 |
| Address | West Yellowstone, MT 59758 |
| Receiving water | BUTTERMILK CREEK |
| Subwatershed | Lower South Fork Madison River (HUC 100200070205) |
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 MTR111980.
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 MTR111980.
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 MTR111980 there.
Nearby on the register
- Discharge permits in West Yellowstone
- Every permit record in West Yellowstone, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.