Clean Water Act discharge permit · NPDES MTX000014
OT MINING CORPORATION, Basin, MT: NPDES MTX000014 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 19Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
OT MINING CORPORATION holds NPDES permit MTX000014, which discharges to Ground Water. EPA’s file records it issued December 1, 2009 and expiring November 30, 2014. 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 | OT MINING CORPORATION |
|---|---|
| Permittee as filed | OT MINING CORPORATION |
| NPDES ID | MTX000014 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 1, 2009 |
| Expiration date | November 30, 2014 |
| Issuing agency | MONTANA DEQ |
| Address | Basin, MT 59631 |
| Receiving water | GROUND WATER |
| Subwatershed | Boulder River-High Ore Creek (HUC 100200060303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 22Pollutants on file
- 19Under a numeric limit
- 22With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Arsenic, dissolved [as As] | 5 | 115 | 4 | December 31, 2006 | 50% over the limit |
| Iron, dissolved [as Fe] | 5 | 115 | 4 | September 30, 2010 | 1,155% over the limit |
| Lead, dissolved [as Pb] | 5 | 115 | 4 | December 31, 2006 | 198% over the limit |
| pH | 10 | 215 | 2 | December 31, 2013 | |
| Cadmium, dissolved [as Cd] | 5 | 111 | 0 | ||
| Copper, dissolved [as Cu] | 5 | 111 | 0 | ||
| Zinc, dissolved [as Zn] | 5 | 111 | 0 | ||
| Specific conductance | 5 | 96 | 0 | ||
| Nitrogen, ammonia total [as N] | 5 | 96 | 0 | ||
| Nitrite + Nitrate total [as N] | 5 | 96 | 0 | ||
| Water level at sample collection time | 5 | 96 | 0 | ||
| Chromium, dissolved [as Cr] | 3 | 51 | 0 | ||
| Mercury, dissolved [as Hg] | 3 | 51 | 0 | ||
| Beryllium, dissolved [as Be] | 3 | 36 | 0 | ||
| Thallium, dissolved [as Tl] | 3 | 36 | 0 | ||
| Nickel, dissolved [as Ni] | 3 | 36 | 0 | ||
| Silver, dissolved [as Ag] | 3 | 36 | 0 | ||
| Antimony, dissolved [as Sb] | 3 | 36 | 0 | ||
| Selenium, dissolved [as Se] | 3 | 36 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 15 | 0 | ||
| Sulfate, total [as SO4] | 0 | 15 | 0 | ||
| Manganese, dissolved [as Mn] | 0 | 15 | 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 |
|---|---|---|
| September 1, 2021 | Management Practice Violations - Failure to Maintain Records | ST6 |
| September 1, 2021 | Monitoring Violations - Analysis not Conducted | 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MTX000014.
Start the watch
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How we handle your data → Privacy
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 MTX000014 there.
Nearby on the register
- Discharge permits in Basin
- Every permit record in Basin, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.