Clean Water Act discharge permit · NPDES MTG130015

MFWP MILES CITY FISH HATCHERY, Miles City, MT: NPDES MTG130015 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
3Pollutants under a numeric limit
0Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

MFWP MILES CITY FISH HATCHERY, held by MONTANA FISH WILDLIFE AND PARKS, holds NPDES permit MTG130015, which discharges to Spotted Eagle Lake. EPA’s file records it issued August 23, 2011 and expiring June 30, 2016.

MFWP MILES CITY FISH HATCHERY, Miles City, Montana: Coverage under a general permit MTG130015, held by MONTANA FISH WILDLIFE AND PARKS; Administratively continued (past its expiration date and still in force until reissued); issued August 23, 2011, term to June 30, 2016, by MONTANA DEQ; discharges to SPOTTED EAGLE LAKE.

Nitrogen, total [as N]: 0 limits, 54 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl, total [as N]: 0 limits, 54 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 0 limits, 54 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 0 limits, 54 violations of any kind, 0 effluent exceedances.
Flow rate: 2 limits, 42 violations of any kind, 0 effluent exceedances.
Fish feed used: 2 limits, 42 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 0 limits, 19 violations of any kind, 0 effluent exceedances.
Polychlorinated biphenyls [PCBs]: 1 limit, 3 violations of any kind, 0 effluent exceedances.

September 10, 2026: Letter of Violation/ Warning Letter (State).
September 10, 2026: Letter of Violation/ Warning Letter (State).
August 18, 2026: Management Practice Violations - Failure to Maintain Records (ST6).
August 18, 2026: Monitoring Violations - Failure to Monitor for Toxicity Requirements (ST6).
August 18, 2026: Monitoring Violations - Invalid/Unrepresentative Sample (ST6).
August 18, 2026: Reporting Violations - Failure to Submit DMRs (ST6).
August 18, 2026: Evaluation (S).
March 12, 2026: Letter of Violation/ Warning Letter (State).

Other permits held by MONTANA FISH WILDLIFE AND PARKS

MONTANA FISH WILDLIFE AND PARKS LAKE FIVE 318, Coram: MTB007411
MURRAY SPRINGS FISH HATCHERY, Eureka: MTG130001, issued August 22, 2011
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
FORT PECK MULTI SPECIES FISH HATCHERY, Fort Peck Dredge Cuts Fishing Access Site: MTG130017, issued August 23, 2011

MFWP MILES CITY FISH HATCHERY among its neighbors

EPA’s permit file holds 7 discharge permits in the Tongue River-Log Creek subwatershed (HUC 100901021310), MTG130015 among them. Its county holds 54, 1 of them major permits; MTG130015 is a minor permit.

Other permits in the Tongue River-Log Creek subwatershed (HUC 100901021310)

CITY OF MILES CITY, Miles City: MTG770006, minor permit, discharging to COOK LAKE/ TONGUE RIVER, permit term to December 31, 2020
DIAMOND J CONSTRUCTION - MILESTOWN ESTATES, Miles City: MTR104679, minor permit, discharging to TONGUE RIVER, permit term to December 31, 2012
HOLY ROSARY HEALTHCARE, Miles City: MTR108562, minor permit, discharging to TONGUE RIVER, permit term to December 31, 2022
IIG- FORSYTH TO MILES CITY, Forsyth: MTR111342, minor permit, discharging to YELLOWSTONE RIVER, permit term to December 31, 2027
JKL ASSOCIATES - SOUTH MILES CITY PROJECT 831-2090305, Miles City: MTR104114, minor permit, discharging to SPRING CREEK AND VARIOUS OTHER, permit term to December 31, 2011
VA - COMMUNITY LIVING CENTER, Miles City: MTR111392, minor permit, discharging to TONGUE RIVER, permit term to December 31, 2027

Identity

Facility as filed	MFWP MILES CITY FISH HATCHERY
Permittee as filed	MONTANA FISH WILDLIFE AND PARKS
NPDES ID	MTG130015
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	August 23, 2011
Expiration date	June 30, 2016
Issuing agency	MONTANA DEQ
Address	Miles City, MT 59301
Receiving water	SPOTTED EAGLE LAKE
Subwatershed	Tongue River-Log Creek (HUC 100901021310)
SIC	0921 – Fish Hatcheries And Preserves

Effluent limits and exceedances

8Pollutants on file
3Under a numeric limit
8With 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]	0	54
Nitrogen, Kjeldahl, total [as N]	0	54
Nitrite + Nitrate total [as N]	0	54
Phosphorus, total [as P]	0	54
Flow rate	2	42
Fish feed used	2	42
Solids, total suspended	0	19
Polychlorinated biphenyls [PCBs]	1	3

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG130015.

Inspections, violations and enforcement

4Single-event violations

Date	What EPA recorded	Agency
August 18, 2026	Management Practice Violations - Failure to Maintain Records	ST6
August 18, 2026	Monitoring Violations - Failure to Monitor for Toxicity Requirements	ST6
August 18, 2026	Monitoring Violations - Invalid/Unrepresentative Sample	ST6
August 18, 2026	Reporting Violations - Failure to Submit DMRs	ST6

Inspections

Date	What EPA recorded	Agency
August 18, 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 10, 2026	Letter of Violation/ Warning Letter	State
September 10, 2026	Letter of Violation/ Warning Letter	State
March 12, 2026	Letter of Violation/ Warning Letter	State

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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers the Clean Water Act discharge permit NPDES MTG130015 for MFWP Miles City Fish Hatchery in Miles City, MT, held by Montana Fish Wildlife and Parks, which discharges to Spotted Eagle Lake. The permit is listed as administratively continued, with a Minor discharger class of 3, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance. The file records issuance on August 23, 2011 and expiration on June 30, 2016.