Clean Water Act discharge permit · NPDES MTG589002
ST. LABRE INDIAN SCHOOL, Ashland, MT: NPDES MTG589002 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ST. LABRE INDIAN SCHOOL, held by Catholic Diocese of Great Falls, holds NPDES permit MTG589002. EPA’s file records it issued November 29, 2004 and expiring August 16, 2009. 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 | ST. LABRE INDIAN SCHOOL |
|---|---|
| Permittee as filed | Catholic Diocese of Great Falls |
| NPDES ID | MTG589002 |
| 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 | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 29, 2004 |
| Expiration date | August 16, 2009 |
| Issuing agency | U.S. EPA Region 8 |
| Address | Ashland, MT 59003 |
| Subwatershed | Lower Rotten Grass Creek (HUC 100800150203) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 62 | 0 | ||
| pH | 2 | 62 | 0 | ||
| Solids, total suspended | 2 | 62 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 62 | 0 | ||
| Oil & Grease | 1 | 31 | 0 | ||
| Oil and grease visual | 1 | 31 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG589002.
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 MTG589002.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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.
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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 MTG589002 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.