Clean Water Act discharge permit · NPDES MT0028983
BULL MOUNTAIN MINE #1, Roundup, MT: NPDES MT0028983 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
BULL MOUNTAIN MINE #1, held by SIGNAL PEAK ENERGY LLC, holds NPDES permit MT0028983, which discharges to Rehder Creek. EPA’s file records it issued December 17, 2003 and expiring January 31, 2009. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BULL MOUNTAIN MINE #1 |
|---|---|
| Permittee as filed | SIGNAL PEAK ENERGY LLC |
| NPDES ID | MT0028983 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 17, 2003 |
| Expiration date | January 31, 2009 |
| Issuing agency | MONTANA DEQ |
| Address | Roundup, MT 59072 |
| Receiving water | REHDER CREEK |
| Subwatershed | Rehder Creek (HUC 100402012201) |
| SIC | 1221 – Bituminous Coal And Lignite - Surface |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 18Pollutants on file
- 10Under a numeric limit
- 18With a violation of any kind
- 5With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 1 | 13 | 10 | September 30, 2023 | 283% over the limit |
| Solids, settleable | 2 | 15 | 8 | September 30, 2024 | 54,900% over the limit |
| pH | 4 | 18 | 4 | November 30, 2021 | |
| Oil and grease, hexane extr method | 2 | 8 | 1 | August 31, 2018 | 30% over the limit |
| Iron, total [as Fe] | 0 | 1 | 1 | December 31, 2013 | 27% over the limit |
| Discharge event observation [Visual Monitoring] | 1 | 82 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 32 | 0 | ||
| Flow rate | 4 | 14 | 0 | ||
| Iron, total recoverable | 2 | 7 | 0 | ||
| Boron, total recoverable | 2 | 7 | 0 | ||
| Precipitation volume | 2 | 7 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 4 | 0 | ||
| Cadmium, total [as Cd] | 0 | 4 | 0 | ||
| Sulfate [as S] | 0 | 2 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Specific conductance | 0 | 1 | 0 |
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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 10, 2026 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| June 10, 2026 | Reporting Violations - Improper/ Incorrect Reporting | 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.
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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 MT0028983 there.
Nearby on the register
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- Every permit record in Roundup, A to Z
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.