Clean Water Act discharge permit · NPDES MTR000486
DIXON BROS INC - DIXON BROS, Great Falls, MT: NPDES MTR000486 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
DIXON BROS INC - DIXON BROS, held by DIXON BROS INC, holds NPDES permit MTR000486, which discharges to Missouri River. EPA’s file records it issued October 25, 2018 and expiring January 31, 2023. 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 | DIXON BROS INC - DIXON BROS |
|---|---|
| Permittee as filed | DIXON BROS INC |
| NPDES ID | MTR000486 |
| 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 | October 25, 2018 |
| Expiration date | January 31, 2023 |
| Address | Great Falls, MT 59401 |
| Receiving water | MISSOURI RIVER |
| Subwatershed | Missouri River-Rainbow Dam (HUC 100301021204) |
| SIC | 4231 – Trucking Terminal Facilities |
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
- 3Pollutants on file
- 0Under a numeric limit
- 3With 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 |
|---|---|---|---|---|---|
| pH | 0 | 1 | 0 | ||
| Solids, total suspended | 0 | 1 | 0 | ||
| Chemical Oxygen Demand [COD] | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTR000486.
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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 2, 2026 | WW Storm Water Non-Construction - Failure to Maintain Records | ST6 |
| June 2, 2026 | WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| June 2, 2026 | WW Storm Water Non-Construction - Failure to Monitor | ST6 |
| June 2, 2026 | WW Storm Water Non-Construction - CWA §308 Failure to submit required permit application info | ST6 |
| June 2, 2026 | Permit Violations - Violation Specified in Comment | 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 MTR000486 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.