Clean Water Act discharge permit · NPDES MTG130001

MURRAY SPRINGS FISH HATCHERY, Eureka, MT: NPDES MTG130001 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

MURRAY SPRINGS FISH HATCHERY, held by MONTANA FISH WILDLIFE AND PARKS, holds NPDES permit MTG130001, which discharges to Lake Koocanusa. 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	MURRAY SPRINGS FISH HATCHERY
Permittee as filed	MONTANA FISH WILDLIFE AND PARKS
NPDES ID	MTG130001
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	Eureka, MT 59917
Receiving water	LAKE KOOCANUSA
Receiving water impaired	303(D) Listed
Subwatershed	Lake Koocanusa-Poverty Creek (HUC 170101010409)

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

Effluent limits and exceedances

4Pollutants on file
4Under a numeric limit
4With 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
Flow rate	2	4
Fish feed used	2	4
Polychlorinated biphenyls [PCBs]	1	3
Solids, total suspended	1	2

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG130001.

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
September 23, 2026	Reporting Violations - Failure to Submit DMRs	ST6
September 23, 2026	Monitoring Violations - Invalid/Unrepresentative Sample	ST6

Inspections

Date	What EPA recorded	Agency
September 23, 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
September 30, 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 MTG130001 there.

MURRAY SPRINGS FISH HATCHERY, Eureka, Montana: Coverage under a general permit MTG130001, held by MONTANA FISH WILDLIFE AND PARKS; Effective; issued August 22, 2011, term to June 30, 2016, by MONTANA DEQ; discharges to LAKE KOOCANUSA.

Flow rate: 2 limits, 4 violations of any kind, 0 effluent exceedances.
Fish feed used: 2 limits, 4 violations of any kind, 0 effluent exceedances.
Polychlorinated biphenyls [PCBs]: 1 limit, 3 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 1 limit, 2 violations of any kind, 0 effluent exceedances.

September 30, 2026: Letter of Violation/ Warning Letter (State).
September 23, 2026: Reporting Violations - Failure to Submit DMRs (ST6).
September 23, 2026: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
September 23, 2026: Evaluation (S).

Other permits held by MONTANA FISH WILDLIFE AND PARKS

MONTANA FISH WILDLIFE AND PARKS LAKE FIVE 318, Coram: MTB007411
GIANT SPRINGS FISH HATCHERY, Great Falls: MTG130002, issued August 22, 2011
BIG SPRINGS HATCHERY, Lewistown: MTG130003, issued August 22, 2011
BIG SPRINGS TROUT HATCHERY, Lewistown: MTG130004, issued August 22, 2011
YELLOWSTONE RIVER HATCHERY, Big Timber: MTG130011, issued August 23, 2011
BLUEWATER SPRINGS HATCHERY, Bridger: MTG130012, issued August 23, 2011
WASHOE PARK TROUT HATCHERY, Anaconda: MTG130013, issued August 23, 2011
FLATHEAD LAKE SALMON HATCHERY, Somers: MTG130014, issued August 23, 2011
MFWP MILES CITY FISH HATCHERY, Miles City: MTG130015, issued August 23, 2011
FORT PECK MULTI SPECIES FISH HATCHERY, Fort Peck Dredge Cuts Fishing Access Site: MTG130017, issued August 23, 2011

MURRAY SPRINGS FISH HATCHERY among its neighbors

EPA’s permit file holds 7 discharge permits in the Lake Koocanusa-Poverty Creek subwatershed (HUC 170101010409), MTG130001 among them. Its county holds 84, 1 of them major permits; MTG130001 is a minor permit.

Other permits in the Lake Koocanusa-Poverty Creek subwatershed (HUC 170101010409)

KOOCANUSA ESCAPES DEVEL CO - ABAYANCE BAY, Rexford: MTR105612, not classed, discharging to LAKE KOOCANUSA
NORTH STAR LANDING, Rexford: MTR106248, minor permit, discharging to Upper Kootenai, permit term to December 31, 2022
NORTH STAR LANDING SUBDIVISION, Eureka: MTX000275, minor permit, discharging to GROUND WATER, permit term to February 28, 2029
REXFORD MT, Rexford: MTR110666, minor permit, discharging to LAKE KOOCANUSA, permit term to December 31, 2027
WILDERNESS CLUB, Eureka: MTX000194, minor permit, discharging to KOOCANUSA, GROB, & SOPHIE LAKE, permit term to September 30, 2019
WILDERNESS DEVELOPMENT LLC WILDERNESS CLUB PROJECT, Eureka: MTR102472, not classed, discharging to GROB LAKE TO LAKE KOOCANUSA

Nearby on the register

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

This public-records page covers NPDES permit MTG130001 for Murray Springs Fish Hatchery in Eureka, MT, held by Montana Fish Wildlife and Parks, which discharges to Lake Koocanusa and is listed in the Lake Koocanusa-Poverty Creek subwatershed (HUC 170101010409). The permit is shown as Effective, with issuance on August 22, 2011 and expiration on June 30, 2016, and the page lists 4 pollutants on file, 4 under a numeric limit, 4 with a violation of any kind, and 0 with an effluent exceedance.