Clean Water Act discharge permit · NPDES MT0031755
BUTTE HIGHLANDS MINE, Butte, MT: NPDES MT0031755 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
BUTTE HIGHLANDS MINE, held by BUTTE HIGHLANDS JV LLC, holds NPDES permit MT0031755, which discharges to Upper Clark Fork. EPA’s file records it issued June 30, 2013 and expiring July 31, 2018. 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 | BUTTE HIGHLANDS MINE |
|---|---|
| Permittee as filed | BUTTE HIGHLANDS JV LLC |
| NPDES ID | MT0031755 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 30, 2013 |
| Expiration date | July 31, 2018 |
| Address | Butte, MT 59701 |
| Receiving water | Upper Clark Fork |
| Subwatershed | Moose Creek (HUC 100200041201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 24Pollutants on file
- 24Under a numeric limit
- 19With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| pH | 20 | 23 | 1 | July 31, 2026 | |
| Arsenic, total recoverable | 12 | 23 | 1 | July 31, 2026 | 20% over the limit |
| Nitrogen, total [as N] | 24 | 44 | 0 | ||
| Phosphorus, total [as P] | 24 | 44 | 0 | ||
| Temperature, water deg. centigrade | 12 | 22 | 0 | ||
| Flow rate | 12 | 22 | 0 | ||
| Solids, total suspended | 12 | 22 | 0 | ||
| Nitrogen, ammonia total [as N] | 12 | 22 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 12 | 22 | 0 | ||
| Nitrite + Nitrate total [as N] | 12 | 22 | 0 | ||
| Fluoride, total [as F] | 12 | 22 | 0 | ||
| Selenium, total recoverable | 12 | 22 | 0 | ||
| Nickel, total recoverable | 12 | 22 | 0 | ||
| Zinc, total recoverable | 12 | 22 | 0 | ||
| Cadmium, total recoverable | 12 | 22 | 0 | ||
| Lead, total recoverable | 12 | 22 | 0 | ||
| Chromium, total recoverable | 12 | 22 | 0 | ||
| Copper, total recoverable | 12 | 22 | 0 | ||
| Mercury, total recoverable | 12 | 22 | 0 | ||
| Oil and grease, hexane extr method | 6 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 6 | 0 | 0 | ||
| Sulfate, total [as SO4] | 6 | 0 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 6 | 0 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 6 | 0 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 27, 2026 | Permit Violations - CWA §308 Failure to submit required permit application information | 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 MT0031755 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.