Clean Water Act discharge permit · NPDES MTR108527
BILLINGS BYPASS - YELLOWSTONE RIVER - NHIP-STPUIP-CMBL-NHPBIP 56(89), Billings, MT: NPDES MTR108527 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
BILLINGS BYPASS - YELLOWSTONE RIVER - NHIP-STPUIP-CMBL-NHPBIP 56(89), held by Montana Department of Transportation, holds NPDES permit MTR108527, which discharges to Yellowstone River. EPA’s file records it issued August 14, 2020 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.
Identity
| Facility as filed | BILLINGS BYPASS - YELLOWSTONE RIVER - NHIP-STPUIP-CMBL-NHPBIP 56(89) |
|---|---|
| Permittee as filed | Montana Department of Transportation |
| NPDES ID | MTR108527 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | August 14, 2020 |
| Expiration date | December 31, 2022 |
| Address | Billings, MT 59101 |
| Receiving water | YELLOWSTONE RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Yellowstone River-Sevenmile Creek (HUC 100700070403) |
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 MTR108527.
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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 17, 2020 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| November 17, 2020 | WW Storm Water Construction - Failure to properly install/implement BMPs | ST6 |
| November 17, 2020 | WW Storm Water Construction - Failure to Maintain Records | ST6 |
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 MTR108527 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.