Clean Water Act discharge permit · NPDES MT0030261
CITY OF LAUREL, WATER TREATMENT PLANT, Laurel, MT: NPDES MT0030261 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
CITY OF LAUREL, WATER TREATMENT PLANT, held by CITY OF LAUREL, holds NPDES permit MT0030261, which discharges to Yellowstone River. EPA’s file records it issued September 18, 2014 and expiring October 31, 2019. 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 | CITY OF LAUREL, WATER TREATMENT PLANT |
|---|---|
| Permittee as filed | CITY OF LAUREL |
| NPDES ID | MT0030261 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 18, 2014 |
| Expiration date | October 31, 2019 |
| Address | Laurel, MT 59044 |
| Receiving water | YELLOWSTONE RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Yellowstone River-Indian Creek (HUC 100700040602) |
| SIC | 4941 – Water Supply |
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
- 7Pollutants on file
- 6Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Aluminum, dissolved [as Al] | 4 | 85 | 21 | November 30, 2021 | 3,510% over the limit |
| Solids, total suspended | 4 | 70 | 7 | April 30, 2017 | 83% over the limit |
| Flow rate | 2 | 28 | 0 | ||
| pH | 2 | 28 | 0 | ||
| Chlorine, total residual | 2 | 26 | 0 | ||
| Duration of discharge | 1 | 12 | 0 | ||
| Turbidity | 0 | 4 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2022 | Management Practice Violations - Failure to Maintain Records | 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
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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 MT0030261 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.