Clean Water Act discharge permit · NPDES MTG130003
BIG SPRINGS HATCHERY, Lewistown, MT: NPDES MTG130003 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
BIG SPRINGS HATCHERY, held by MONTANA FISH WILDLIFE AND PARKS, holds NPDES permit MTG130003, which discharges to Hanson Creek Trib To Big Spring Crk. EPA’s file records it issued August 22, 2011 and expiring June 30, 2016. 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 | BIG SPRINGS HATCHERY |
|---|---|
| Permittee as filed | MONTANA FISH WILDLIFE AND PARKS |
| NPDES ID | MTG130003 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 22, 2011 |
| Expiration date | June 30, 2016 |
| Issuing agency | MONTANA DEQ |
| Address | Lewistown, MT 59457 |
| Receiving water | HANSON CREEK TRIB TO BIG SPRING CRK |
| Subwatershed | Upper Big Spring Creek (HUC 100401030703) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 4Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| Flow rate | 4 | 0 | 0 | ||
| Fish feed used | 4 | 0 | 0 | ||
| Solids, total suspended | 2 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 2 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG130003.
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 |
|---|---|---|
| April 1, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| April 1, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| April 17, 2026 | Letter of Violation/ Warning Letter | State |
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, MTG130003.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MTG130003 there.
Nearby on the register
- Discharge permits in Lewistown
- Every permit record in Lewistown, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.