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Clean Water Act discharge permit · NPDES MAG590017

WINCHENDON W P C F, Winchedon, MA: NPDES MAG590017 discharge permit, effluent exceedances, inspections, penalties

WINCHENDON W P C F, held by WINCHENDON WCPF, holds NPDES permit MAG590017, which discharges to Millers 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 filedWINCHENDON W P C F
Permittee as filedWINCHENDON WCPF
NPDES IDMAG590017
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 28, 2022
Expiration dateOctober 31, 2027
AddressWinchedon, MA 01475
Receiving waterMILLERS RIVER
Receiving water impaired303(D) Listed
SubwatershedTorbell Brook-Millers River (HUC 010802020103)

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

Effluent limits and exceedances

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 66 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Copper, total [as Cu]44545May 31, 2026304% over the limit
E. coli21212July 31, 20261,275% over the limit
Nitrogen, ammonia total [as N]61010July 31, 2026465% over the limit
BOD, 5-day, 20 deg. C1133February 28, 202623% over the limit
Solids, total suspended1122April 30, 202688% over the limit
BOD, 5-day, percent removal122March 31, 202661% over the limit
Solids, suspended percent removal122April 30, 202638% over the limit
LC50 Static Renewal 48Hr Acute Pimephales promelas122March 31, 202638% over the limit
Lead, total [as Pb]411May 31, 2025320% over the limit
pH311December 31, 2023
Phosphorus, total [as P]220
Nitrogen, total [as N]400
Nitrogen, Kjeldahl, total [as N]400
Nitrite + Nitrate total [as N]400
Flow, in conduit or thru treatment plant300
Perfluorooctanoic acid (PFOA)300
Perfluorobutanoic acid (PFBA)300
Perfluorooctanesulfonamide (PFOSA)300
Perfluoropentanoic acid (PFPeA)300
Perfluorohexanoic acid (PFHxA)300
Perfluoroheptanoic acid (PFHpA)300
Perfluorononanoic acid (PFNA)300
Perfluorodecanoic acid (PFDA)300
Perfluoroundecanoic acid (PFUnA)300
Perfluorododecanoic acid (PFDoA)300
Perfluorotridecanoic acid (PFTrDA)300
Perfluorotetradecanoic acid (PFTeDA)300
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)300
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)300
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)300
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)300
Perfluorobutanesulfonic acid (PFBS)300
Perfluorodecanesulfonic acid (PFDS)300
Perfluoroheptanesulfonic acid (PFHpS)300
Perfluorohexanesulfonic acid (PFHxS)300
Perfluorooctanesulfonic acid (PFOS)300
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)300
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)300
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)300
Perfluoropentanesulfonic acid (PFPeS)300
Perfluorononanesulfonic acid (PFNS)300
Hexafluoropropylene oxide dimer acid (HFPO-DA)300
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)300
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)300
Perfluorododecanesulfonic acid (PFDoS)300
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)300
N-methyl perfluorooctanesulfonamide (NMeFOSA)300
N-ethyl perfluorooctanesulfonamide (NEtFOSA)300
3-Perfluoropropyl propanoic acid (3:3 FTCA)300
Perfluoro-3-methoxypropanoic acid (PFMPA)300
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)300
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)300
3-Perfluoroheptyl propanoic acid (7:3 FTCA)300
Perfluoro-4-methoxybutanoic acid (PFMBA)300
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)300
Carbon, tot organic [TOC]200
Hardness, total [as CaCO3]200
Cadmium, total [as Cd]200
Nickel, total [as Ni]200
Zinc, total [as Zn]200

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAG590017.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MAG590017.

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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 MAG590017 there.

Nearby on the register

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