Clean Water Act discharge permit · NPDES MTG130019

ROSE CREEK HATCHERY, Big Fork-Swan River Division, MT: NPDES MTG130019 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
7Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ROSE CREEK HATCHERY, held by MT FISH WILDLIFE AND PARKS ROSE CREEK HATCHERY, holds NPDES permit MTG130019, which discharges to Flathead Lake. EPA’s file records it issued January 3, 2017 and expiring June 30, 2021. 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	ROSE CREEK HATCHERY
Permittee as filed	MT FISH WILDLIFE AND PARKS ROSE CREEK HATCHERY
NPDES ID	MTG130019
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
Issued	January 3, 2017
Expiration date	June 30, 2021
Address	Big Fork-Swan River Division, MT 59911
Receiving water	FLATHEAD LAKE
Subwatershed	Flathead River-Rose Creek (HUC 170102080108)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

7Pollutants on file
7Under a numeric limit
7With 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
Nitrogen, total [as N]	18	78
Nitrogen, Kjeldahl, total [as N]	18	78
Nitrite + Nitrate total [as N]	18	78
Phosphorus, total [as P]	18	78
Fish feed used	6	58
Flow rate	6	56
Solids, total suspended	3	28

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG130019.

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

2Single-event violations

Date	What EPA recorded	Agency
January 23, 2019	Monitoring Violations - Analysis not Conducted	ST6
January 23, 2019	Reporting Violations - Failure to Submit DMRs	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES MTG130019.

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
September 10, 2026	Letter of Violation/ Warning Letter	State
March 12, 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.

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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 MTG130019 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act discharge permit NPDES MTG130019 for ROSE CREEK HATCHERY in the Big Fork-Swan River Division, MT, which discharges to Flathead Lake and is administratively continued. The page lists 7 pollutants on file, 0 of them under a numeric limit, and 0 with an effluent exceedance.