Clean Water Act discharge permit · NPDES MTG580013
TOWN OF LAVINA WWTF, Lavina, MT: NPDES MTG580013 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
TOWN OF LAVINA WWTF, held by TOWN OF LAVINA, holds NPDES permit MTG580013, which discharges to Musselshell River. EPA’s file records it issued January 17, 2018 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 LAVINA WWTF |
|---|---|
| Permittee as filed | TOWN OF LAVINA |
| NPDES ID | MTG580013 |
| 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 | January 17, 2018 |
| Expiration date | December 31, 2022 |
| Address | Lavina, MT 59046 |
| Receiving water | MUSSELSHELL RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Musselshell River-Lavina (HUC 100402012304) |
| 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
- 19Pollutants on file
- 9Under a numeric limit
- 19With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 6 | 55 | 19 | November 30, 2022 | 344% over the limit |
| Solids, total suspended | 4 | 34 | 6 | November 30, 2022 | 144% over the limit |
| E. coli, MTEC-MF | 4 | 10 | 4 | November 30, 2022 | 1,183% over the limit |
| pH | 2 | 11 | 1 | January 31, 2013 | |
| BOD, 5-day, percent removal | 1 | 7 | 1 | October 31, 2024 | 47% over the limit |
| Flow rate | 0 | 14 | 0 | ||
| Coliform, fecal general | 0 | 8 | 0 | ||
| Flow rate | 2 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 4 | 0 | ||
| Chlorine, total residual | 0 | 4 | 0 | ||
| Duration of discharge | 1 | 3 | 0 | ||
| Oil and grease, hexane extr method | 0 | 2 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Solids, suspended percent removal | 0 | 2 | 0 | ||
| Oil & Grease | 1 | 1 | 0 | ||
| Oil and grease visual | 1 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 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
- 10Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 29, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 29, 2026 | Management Practice Violations - Failure to Maintain Records | ST6 |
| January 29, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| January 28, 2022 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| January 28, 2022 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| January 28, 2022 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| January 28, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| January 28, 2022 | Management Practice Violations - Failure to Maintain Records | ST6 |
| January 28, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 19, 2018 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | 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, MTG580013.
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- 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 MTG580013 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.