Clean Water Act discharge permit · NPDES MTG580002
TOWN OF DRUMMOND WWTP, Drummond, MT: NPDES MTG580002 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
TOWN OF DRUMMOND WWTP, held by TOWN OF DRUMMOND, holds NPDES permit MTG580002, which discharges to Clark Fork River. EPA’s file records it issued December 27, 2017 and expiring December 31, 2022. 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 | TOWN OF DRUMMOND WWTP |
|---|---|
| Permittee as filed | TOWN OF DRUMMOND |
| NPDES ID | MTG580002 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 27, 2017 |
| Expiration date | December 31, 2022 |
| Address | Drummond, MT 59832 |
| Receiving water | CLARK FORK RIVER |
| Subwatershed | Clark Fork River-Drummond (HUC 170102020602) |
| SIC | 4952 – Sewerage Systems |
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
- 18Pollutants on file
- 9Under a numeric limit
- 18With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 28 | 18 | June 30, 2026 | 5,620% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 25 | 14 | June 30, 2026 | 2,704% over the limit |
| E. coli, MTEC-MF | 4 | 17 | 13 | June 30, 2026 | 191,932% over the limit |
| pH | 2 | 8 | 4 | June 30, 2026 | |
| BOD, 5-day, percent removal | 1 | 5 | 4 | June 30, 2026 | 760% over the limit |
| Flow rate | 2 | 5 | 0 | ||
| Duration of discharge | 1 | 2 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Chlorine, total residual | 0 | 2 | 0 | ||
| Oil & Grease | 1 | 1 | 0 | ||
| Oil and grease visual | 1 | 1 | 0 | ||
| Flow rate | 0 | 1 | 0 | ||
| Oil and grease, hexane extr method | 0 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 1 | 0 | ||
| Coliform, fecal general | 0 | 1 | 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 |
|---|---|---|
| December 5, 2024 | Management Practice Violations - Failure to Maintain Records | ST6 |
| December 5, 2024 | Management Practice Violations - Improper Operation and Maintenance | 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.
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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 MTG580002 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.