Clean Water Act discharge permit · NPDES MAG130003

MCLAUGHLIN STATE FISH HATCHERY, Belchertown, MA: NPDES MAG130003 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
3Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

MCLAUGHLIN STATE FISH HATCHERY, held by Massachusetts Division of Fisheries and Wildlife, holds NPDES permit MAG130003. EPA’s file records it issued May 6, 2021 and expiring June 30, 2026.

MCLAUGHLIN STATE FISH HATCHERY, Belchertown, Massachusetts: Coverage under a general permit MAG130003, held by Massachusetts Division of Fisheries and Wildlife; Administratively continued (past its expiration date and still in force until reissued); issued May 6, 2021, term to June 30, 2026, by EPA Region 1.

pH: 2 limits, 8 violations of any kind, 8 effluent exceedances, latest November 30, 2023.
Nitrogen, total [as N]: 7 limits, 6 violations of any kind, 6 effluent exceedances, latest March 31, 2024, largest 190% over the limit.
Flow, in conduit or thru treatment plant: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest October 31, 2024, largest 2% over the limit.
Phosphorus, total [as P]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
BOD, 5-day, 20 deg. C: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Chlorophyll A: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Hydrogen peroxide: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Nitrogen, ammonia total [as N]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Fish feed used: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Biomass, fish: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Fish feed used efficiency: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Other permits held by Massachusetts Division of Fisheries and Wildlife

BITZER STATE FISH HATCHERY, Montague: MAG130002, issued May 6, 2021
SANDWICH STATE FISH HATCHERY, Sandwich: MAG130004, issued May 6, 2021
SUNDERLAND STATE FISH HATCHERY, Sunderland: MAG130005, issued May 6, 2021

MCLAUGHLIN STATE FISH HATCHERY among its neighbors

EPA’s permit file holds 5 discharge permits in the Quabbin Reservoir-Swift River subwatershed (HUC 010802040106), MAG130003 among them. Its county holds 79, 5 of them major permits; MAG130003 is a minor permit.

Other permits in the Quabbin Reservoir-Swift River subwatershed (HUC 010802040106)

ATLAS DIE, LLC, Palmer: MANOEJ01N, minor permit, permit term to April 15, 2024
C.L. MCLAUGHLIN TROUT HATCHERY/BELCERTOWN, Belchertown: MA0110043, minor permit, discharging to SWIFT RIVER, permit term to November 30, 2012
LOT 2, JIM ASH ROAD (MAP 40, LOT 2), PALMER, Palmer: MAR1004ZI, minor permit, permit term to February 16, 2027
SHERWOOD LUMBER WAREHOUSE, Palmer: MAR1004M9, minor permit, permit term to February 16, 2027

Identity

Facility as filed	MCLAUGHLIN STATE FISH HATCHERY
Permittee as filed	Massachusetts Division of Fisheries and Wildlife
NPDES ID	MAG130003
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	May 6, 2021
Expiration date	June 30, 2026
Issuing agency	EPA Region 1
Address	Belchertown, MA 01007
Subwatershed	Quabbin Reservoir-Swift River (HUC 010802040106)
Other EPA IDs (FRS)	RCRA handler MAD982748964

Effluent limits and exceedances

12Pollutants on file
12Under a numeric limit
3With a violation of any kind
3With 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
pH	2	8	8	November 30, 2023
Nitrogen, total [as N]	7	6	6	March 31, 2024	190% over the limit
Flow, in conduit or thru treatment plant	2	3	3	October 31, 2024	2% over the limit
Phosphorus, total [as P]	5	0	0
BOD, 5-day, 20 deg. C	2	0	0
Solids, total suspended	2	0	0
Chlorophyll A	2	0	0
Hydrogen peroxide	1	0	0
Nitrogen, ammonia total [as N]	1	0	0
Fish feed used	1	0	0
Biomass, fish	1	0	0
Fish feed used efficiency	1	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAG130003.

Inspections

EPA’s inspection file holds no inspection for NPDES MAG130003.

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

EPA’s informal enforcement file holds no action for NPDES MAG130003.

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

This public-records page covers NPDES permit MAG130003, held by the Massachusetts Division of Fisheries and Wildlife for McLaughlin State Fish Hatchery in Belchertown, MA, within the Quabbin Reservoir-Swift River subwatershed (HUC 010802040106). The permit is classified as a minor discharger with administratively continued status, and the page lists 12 as the discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance.