Clean Water Act discharge permit · NPDES MT0027821
BEAVERHEAD TALC MINE, Cameron, MT: NPDES MT0027821 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
BEAVERHEAD TALC MINE, held by IMERYS TALC AMERICA INC, holds NPDES permit MT0027821, which discharges to Unnamed Trib Middle Fork Stone Ck.. EPA’s file records it issued November 13, 2006 and expiring December 31, 2011. 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 | BEAVERHEAD TALC MINE |
|---|---|
| Permittee as filed | IMERYS TALC AMERICA INC |
| NPDES ID | MT0027821 |
| 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 | November 13, 2006 |
| Expiration date | December 31, 2011 |
| Issuing agency | MONTANA DEQ |
| Address | Cameron, MT 59720 |
| Receiving water | UNNAMED TRIB MIDDLE FORK STONE CK. |
| Subwatershed | Stone Creek (HUC 100200020604) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 10Under a numeric limit
- 12With 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 | 5 | 40 | 32 | August 31, 2025 | |
| Turbidity | 3 | 6 | 1 | June 30, 2011 | |
| Solids, total suspended | 1 | 10 | 0 | ||
| Nitrogen, nitrate total [as N] | 3 | 9 | 0 | ||
| Oil & Grease | 0 | 9 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 7 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 7 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 3 | 0 | ||
| Flow rate | 1 | 2 | 0 | ||
| Oil and grease visual | 0 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 1 | 0 | ||
| Report due [yrmoda] | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 3 | 0 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Copper, total recoverable | 2 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MT0027821.
Inspections
EPA’s inspection file holds no inspection for NPDES MT0027821.
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 MT0027821.
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, MT0027821.
Start the watch
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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 MT0027821 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.