Clean Water Act discharge permit · NPDES MTG010190
WESTERN LIVESTOCK AUCTION, Great Falls, MT: NPDES MTG010190 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
WESTERN LIVESTOCK AUCTION, held by WESTERN LIVESTOCK AUCTION LLC, holds NPDES permit MTG010190, which discharges to Sun River. EPA’s file records it issued April 23, 2020 and expiring October 31, 2023. 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 | WESTERN LIVESTOCK AUCTION |
|---|---|
| Permittee as filed | WESTERN LIVESTOCK AUCTION LLC |
| NPDES ID | MTG010190 |
| 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 | Concentrated animal feeding operations |
| Issued | April 23, 2020 |
| Expiration date | October 31, 2023 |
| Address | Great Falls, MT 59404 |
| Receiving water | SUN RIVER |
| Subwatershed | Sun River-Manchester (HUC 100301040905) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 0Under a numeric limit
- 14With 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 | 0 | 8 | 0 | ||
| Solids, total suspended | 0 | 8 | 0 | ||
| Phosphorus, total [as P] | 0 | 8 | 0 | ||
| Nitrogen, total [as N] | 0 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 4 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 4 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 4 | 0 | ||
| E. coli, MTEC-MF | 0 | 4 | 0 | ||
| Coliform, fecal general | 0 | 4 | 0 | ||
| Precipitation volume | 0 | 4 | 0 | ||
| Duration | 0 | 3 | 0 | ||
| Volume, total | 0 | 3 | 0 | ||
| pH | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG010190.
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 |
|---|---|---|
| April 9, 2026 | WW CAFO - Management Practice Violations - Improper O&M | ST6 |
| April 9, 2026 | WW CAFO - Failure to Maintain Records or Meet Record Keeping Requirements | ST6 |
| February 19, 2021 | WW CAFO - Monitoring Violations - Failure to Test Manure or Soil, as Required | ST6 |
| February 19, 2021 | WW CAFO - Management Practice Violations - Failure to Conduct Self Inspections | ST6 |
| February 19, 2021 | WW CAFO - Failure to Maintain Records or Meet Record Keeping Requirements | 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 MTG010190 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.