Clean Water Act discharge permit · NPDES MTR10I05F
POST CREEK - EWP DRILLING, St. Ignatius, MT: NPDES MTR10I05F discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
POST CREEK - EWP DRILLING, held by Kiewit Infrastructure Co., holds NPDES permit MTR10I05F. EPA’s file records it issued November 27, 2024 and expiring February 16, 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 POST CREEK - EWP DRILLING: its NPDES ID, its permit type and status, its dates, its address in St. Ignatius, Montana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR10I05F.
Identity
| Facility as filed | POST CREEK - EWP DRILLING |
|---|---|
| Permittee as filed | Kiewit Infrastructure Co. |
| NPDES ID | MTR10I05F |
| 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 | November 27, 2024 |
| Expiration date | February 16, 2027 |
| Issuing agency | U.S. EPA |
| Address | St. Ignatius, MT 59865 |
| Subwatershed | Lower Post Creek (HUC 170102120505) |
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 MTR10I05F.
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 MTR10I05F.
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 MTR10I05F there.
Nearby on the register
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- Every permit record in St. Ignatius, 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.