Clean Water Act discharge permit · NPDES MTR000521
ASARCO - METG - BLACK PINE MINE, Philipsburg, MT: NPDES MTR000521 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ASARCO - METG - BLACK PINE MINE, held by MONTANA ENVIRONMENTAL TRUST GROUP LLC, holds NPDES permit MTR000521, which discharges to South Fork Lower Willow Creek. EPA’s file records it issued January 29, 2019 and expiring January 31, 2023.
ASARCO - METG - BLACK PINE MINE, Philipsburg, Montana: Coverage under a general permit MTR000521, held by MONTANA ENVIRONMENTAL TRUST GROUP LLC; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued January 29, 2019, term to January 31, 2023; discharges to SOUTH FORK LOWER WILLOW CREEK.
- pH: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Arsenic, total [as As]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Beryllium, total [as Be]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Cadmium, total [as Cd]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Copper, total [as Cu]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Iron, total [as Fe]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Lead, total [as Pb]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Silver, total [as Ag]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Zinc, total [as Zn]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Antimony, total [as Sb]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Selenium, total [as Se]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- Mercury, total [as Hg]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
- August 28, 2020: WW Storm Water Non-Construction - Failure to submit required report (non-DMR) (ST6).
Montana holds 465 Industrial stormwater coverages of this permit type in EPA’s file; 312 were issued before MTR000521. MONTANA ENVIRONMENTAL TRUST GROUP LLC holds 3 permits in Montana.
Other permits held by MONTANA ENVIRONMENTAL TRUST GROUP LLC
- ASARCO - METG - EAST HELENA SMELTER, East Helena: MT0030147, issued November 1, 1996
- ASARCO EAST HELENA SMELTER - METG, East Helena: MTR000072, issued October 31, 2006
Coverages issued nearest MTR000521
- December 26, 2018: FISHER SAND AND GRAVEL, Glendive, MTR000278
- January 11, 2019: LHC SPANISH PEAKS CONCRETE BATCH PLANT, Cameron, MTR000647, held by LHC INC
- January 21, 2019: MONTANA PRECISION PRODUCTS (MPP), Silver Bow, MTR000585
- January 22, 2019: BAXTER LANE GRAVEL PIT (KENNEDY SITE) AND ROAD AND BRIDGE MAINTENANCE SHOP, Bozeman, MTR000648, held by GALLATIN COUNTY
- January 29, 2019: SPRING CREEK MINE, Decker, MTR000514, held by NAVAJO TRANSITIONAL ENERGY COMPANY LLC
- January 30, 2019: T AND R TRUCKING INC, Glasgow, MTR000007
- January 30, 2019: LOGAN PIT, Logan, MTR000590, held by KENYON NOBLE READY MIX
- February 14, 2019: CITY OF LAUREL WASTE WATER TREATMENT PLANT, Laurel, MTR000535, held by CITY OF LAUREL
- February 27, 2019: DENBURY ONSHORE - GAS CITY SECTION 28 TANK BATTERY, Glendive, MTR000651, held by DENBURY ONSHORE LLC
- March 23, 2019: CITY OF HARDIN, Hardin, MTNOEIA00, held by Dean Baker
ASARCO - METG - BLACK PINE MINE among its neighbors
EPA’s permit file holds 2 discharge permits in the Upper South Fork Lower Middle Creek subwatershed (HUC 170102020401), MTR000521 among them. Its county holds 37, 0 of them major permits; MTR000521 is a minor permit.
Other permits in the Upper South Fork Lower Middle Creek subwatershed (HUC 170102020401)
- ASARCO - METG - BLACK PINE MINE, Philipsburg: MTR300080, minor permit, discharging to FLINT CREEK DRAINAGE, permit term to November 16, 2007
Identity
| Facility as filed | ASARCO - METG - BLACK PINE MINE |
|---|---|
| Permittee as filed | MONTANA ENVIRONMENTAL TRUST GROUP LLC |
| NPDES ID | MTR000521 |
| 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 | Industrial stormwater |
| Issued | January 29, 2019 |
| Expiration date | January 31, 2023 |
| Address | Philipsburg, MT 59858 |
| Receiving water | SOUTH FORK LOWER WILLOW CREEK |
| Subwatershed | Upper South Fork Lower Middle Creek (HUC 170102020401) |
| SIC | 1044 – Silver Ores |
Effluent limits and exceedances
- 15Pollutants on file
- 0Under a numeric limit
- 15With a violation of any kind
- 0With 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 | 0 | 2 | 0 | ||
| Solids, total suspended | 0 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 1 | 0 | ||
| Arsenic, total [as As] | 0 | 1 | 0 | ||
| Beryllium, total [as Be] | 0 | 1 | 0 | ||
| Cadmium, total [as Cd] | 0 | 1 | 0 | ||
| Copper, total [as Cu] | 0 | 1 | 0 | ||
| Iron, total [as Fe] | 0 | 1 | 0 | ||
| Lead, total [as Pb] | 0 | 1 | 0 | ||
| Nickel, total [as Ni] | 0 | 1 | 0 | ||
| Silver, total [as Ag] | 0 | 1 | 0 | ||
| Zinc, total [as Zn] | 0 | 1 | 0 | ||
| Antimony, total [as Sb] | 0 | 1 | 0 | ||
| Selenium, total [as Se] | 0 | 1 | 0 | ||
| Mercury, total [as Hg] | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTR000521.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 28, 2020 | WW Storm Water Non-Construction - Failure to submit required report (non-DMR) | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES MTR000521.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES MTR000521.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.