Clean Water Act discharge permit · NPDES MTR300092
BENTONITE PERFORMANCE MINERALS, Alzada, MT: NPDES MTR300092 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
BENTONITE PERFORMANCE MINERALS holds NPDES permit MTR300092, which discharges to Thompson Creek. EPA’s file records it issued March 6, 2003 and expiring November 16, 2007. 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.
What the register holds for BENTONITE PERFORMANCE MINERALS: its NPDES ID, its permit type and status, its dates, its address in Alzada, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR300092.
Identity
| Facility as filed | BENTONITE PERFORMANCE MINERALS |
|---|---|
| Permittee as filed | BENTONITE PERFORMANCE MINERALS |
| NPDES ID | MTR300092 |
| 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 6, 2003 |
| Expiration date | November 16, 2007 |
| Issuing agency | MONTANA DEQ |
| Address | Alzada, MT 59311 |
| Receiving water | THOMPSON CREEK |
| Subwatershed | Lower Thompson Creek (HUC 101102010404) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR300092.
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 MTR300092.
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, MTR300092.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 MTR300092 there.
Nearby on the register
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.