Clean Water Act discharge permit · NPDES MAG590021

SOUTH HADLEY W W T P, Chicopee, MA: NPDES MAG590021 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
63Pollutants under a numeric limit
6Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

SOUTH HADLEY W W T P, held by SOUTH HADLEY WWTP, holds NPDES permit MAG590021, which discharges to Connecticut River. EPA’s file records it issued September 28, 2022 and expiring October 31, 2027. 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	SOUTH HADLEY W W T P
Permittee as filed	SOUTH HADLEY WWTP
NPDES ID	MAG590021
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 28, 2022
Expiration date	October 31, 2027
Address	Chicopee, MA 01020
Receiving water	CONNECTICUT RIVER
Receiving water impaired	303(D) Listed
Subwatershed	Stony Brook-Connecticut River (HUC 010802010702)

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

Effluent limits and exceedances

63Pollutants on file
63Under a numeric limit
52With a violation of any kind
6With 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; the 60 with the most exceedances of 63 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
E. coli	2	18	16	July 31, 2025	99,999% over the limit
pH	3	7	5	January 31, 2026
Chlorine, total residual	2	6	4	June 30, 2024	40% over the limit
Solids, total suspended	6	9	3	November 30, 2024	93% over the limit
BOD, 5-day, percent removal	1	2	1	July 31, 2023	5% over the limit
Solids, suspended percent removal	1	2	1	July 31, 2023	29% over the limit
BOD, 5-day, 20 deg. C	6	6	0
Perfluorooctanoic acid (PFOA)	3	6	0
Perfluorobutanoic acid (PFBA)	3	6	0
Perfluorooctanesulfonamide (PFOSA)	3	6	0
Perfluoropentanoic acid (PFPeA)	3	6	0
Perfluorohexanoic acid (PFHxA)	3	6	0
Perfluoroheptanoic acid (PFHpA)	3	6	0
Perfluorononanoic acid (PFNA)	3	6	0
Perfluorodecanoic acid (PFDA)	3	6	0
Perfluoroundecanoic acid (PFUnA)	3	6	0
Perfluorododecanoic acid (PFDoA)	3	6	0
Perfluorotridecanoic acid (PFTrDA)	3	6	0
Perfluorotetradecanoic acid (PFTeDA)	3	6	0
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)	3	6	0
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)	3	6	0
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)	3	6	0
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)	3	6	0
Perfluorobutanesulfonic acid (PFBS)	3	6	0
Perfluorodecanesulfonic acid (PFDS)	3	6	0
Perfluoroheptanesulfonic acid (PFHpS)	3	6	0
Perfluorohexanesulfonic acid (PFHxS)	3	6	0
Perfluorooctanesulfonic acid (PFOS)	3	6	0
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)	3	6	0
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)	3	6	0
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)	3	6	0
Perfluoropentanesulfonic acid (PFPeS)	3	6	0
Perfluorononanesulfonic acid (PFNS)	3	6	0
Hexafluoropropylene oxide dimer acid (HFPO-DA)	3	6	0
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)	3	6	0
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)	3	6	0
Perfluorododecanesulfonic acid (PFDoS)	3	6	0
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)	3	6	0
N-methyl perfluorooctanesulfonamide (NMeFOSA)	3	6	0
N-ethyl perfluorooctanesulfonamide (NEtFOSA)	3	6	0
3-Perfluoropropyl propanoic acid (3:3 FTCA)	3	6	0
Perfluoro-3-methoxypropanoic acid (PFMPA)	3	6	0
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)	3	6	0
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)	3	6	0
3-Perfluoroheptyl propanoic acid (7:3 FTCA)	3	6	0
Perfluoro-4-methoxybutanoic acid (PFMBA)	3	6	0
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)	3	6	0
Nitrogen, total [as N]	5	4	0
Flow, in conduit or thru treatment plant	3	3	0
Nitrogen, Kjeldahl, total [as N]	4	2	0
Nitrite + Nitrate total [as N]	4	2	0
Carbon, dissolved organic [as C]	1	1	0
Nitrogen, ammonia total [as N]	2	0	0
Carbon, tot organic [TOC]	2	0	0
Hardness, total [as CaCO3]	2	0	0
Cadmium, total [as Cd]	2	0	0
Copper, total [as Cu]	2	0	0
Lead, total [as Pb]	2	0	0
Nickel, total [as Ni]	2	0	0
Zinc, total [as Zn]	2	0	0

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAG590021.

Inspections

EPA’s inspection file holds no inspection for NPDES MAG590021.

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 MAG590021.

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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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 MAG590021 there.

Nearby on the register

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

This public-records page covers NPDES permit MAG590021 for the SOUTH HADLEY W W T P in Chicopee, MA, which discharges to the Connecticut River and is listed in subwatershed Stony Brook-Connecticut River (HUC 010802010702). The page lists 63 pollutants on file, 52 under a numeric limit, and 6 with an effluent exceedance, with the permit shown as effective.