Clean Water Act discharge permit · NPDES MTR000553
ELKHORN GOLDFIELDS INC ELKHORN MINE SITE, Boulder, MT: NPDES MTR000553 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ELKHORN GOLDFIELDS INC ELKHORN MINE SITE, held by ELKHORN GOLDFIELDS INC, holds NPDES permit MTR000553, which discharges to Elkhorn Creek. EPA’s file records it issued March 27, 2019 and expiring January 31, 2023. 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 | ELKHORN GOLDFIELDS INC ELKHORN MINE SITE |
|---|---|
| Permittee as filed | ELKHORN GOLDFIELDS INC |
| NPDES ID | MTR000553 |
| 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 | March 27, 2019 |
| Expiration date | January 31, 2023 |
| Address | Boulder, MT 59632 |
| Receiving water | ELKHORN CREEK |
| Subwatershed | Elkhorn Creek (HUC 100200060502) |
| SIC | 1041 – Gold Ores |
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
- 15Pollutants on file
- 15Under 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 | 4 | 108 | 0 | ||
| Solids, total suspended | 2 | 54 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 54 | 0 | ||
| Arsenic, total [as As] | 2 | 54 | 0 | ||
| Beryllium, total [as Be] | 2 | 54 | 0 | ||
| Cadmium, total [as Cd] | 2 | 54 | 0 | ||
| Copper, total [as Cu] | 2 | 54 | 0 | ||
| Iron, total [as Fe] | 2 | 54 | 0 | ||
| Lead, total [as Pb] | 2 | 54 | 0 | ||
| Nickel, total [as Ni] | 2 | 54 | 0 | ||
| Silver, total [as Ag] | 2 | 54 | 0 | ||
| Zinc, total [as Zn] | 2 | 54 | 0 | ||
| Antimony, total [as Sb] | 2 | 54 | 0 | ||
| Selenium, total [as Se] | 2 | 54 | 0 | ||
| Mercury, total [as Hg] | 2 | 54 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTR000553.
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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 26, 2018 | WW Storm Water Non-Construction - CWA §308 Failure to submit required permit application info | ST6 |
| July 26, 2018 | WW Storm Water Non-Construction - Failure to Maintain Records | ST6 |
| July 26, 2018 | WW Storm Water Non-Construction - Failure to Monitor | ST6 |
| July 26, 2018 | WW Storm Water Non-Construction - Failure to properly install/implement BMPs | ST6 |
| July 26, 2018 | WW Storm Water Non-Construction - Failure to properly operate and maintain BMPs | 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 MTR000553 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.