Velarion Records

Clean Water Act discharge permit · NPDES CT0000086

ALLNEX USA INCORPORATED, Wallingford, CT: NPDES CT0000086 discharge permit, effluent exceedances, inspections, penalties

ALLNEX USA INCORPORATED holds NPDES permit CT0000086, which discharges to Quinnipiac River. EPA’s file records it issued May 17, 2011 and expiring May 31, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedALLNEX USA INCORPORATED
Permittee as filedALLNEX USA INCORPORATED
NPDES IDCT0000086
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedMay 17, 2011
Expiration dateMay 31, 2016
Issuing agencyCT DEP
AddressWallingford, CT 06492
Receiving waterQUINNIPIAC RIVER
SubwatershedOutlet Quinnipiac River (HUC 011000040105)
SIC2821 – Plastics Materials And Resins

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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 149 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Di[2-ethylhexyl] phthalate [DEHP]104543February 28, 20154,900% over the limit
Flow, maximum during 24 hr period53636November 30, 2000536% over the limit
Phosphorus, total [as P]183735October 31, 2021623% over the limit
Chlorine, total residual82120September 30, 20101,167% over the limit
Flow91919May 31, 2010213% over the limit
Flow rate51919November 30, 2000452% over the limit
Acrylonitrile142018January 31, 20258,789% over the limit
Solids, total suspended112217June 30, 2026430% over the limit
Lead, total [as Pb]151916July 31, 2006500% over the limit
Nitrogen, ammonia total [as N]111110March 31, 2023423% over the limit
Aluminum, total [as Al]8139February 28, 2022258% over the limit
Oil & Grease9109June 30, 2001200% over the limit
Coliform, fecal general099July 31, 20082,975% over the limit
Formaldehyde888April 30, 202642% over the limit
Cyanide, total [as CN]1433October 31, 199952% over the limit
Phenanthrene1082July 31, 19984,900% over the limit
Phenols282July 31, 19989,900% over the limit
pH1272November 30, 2020
Methanol, total672January 31, 2025900% over the limit
Acenaphthylene1042July 31, 19984,900% over the limit
Benzo[k]fluoranthene1042July 31, 19984,900% over the limit
Benzo[a]pyrene1042July 31, 19984,900% over the limit
Chrysene1042July 31, 19984,900% over the limit
Hexachloroethane1042July 31, 19982,400% over the limit
Benzo[a]anthracene1042July 31, 19984,900% over the limit
1,4-Dichlorobenzene1042July 31, 19984,900% over the limit
2,4-Dimethylphenol1042July 31, 19989,900% over the limit
2,4-Dinitrophenol1042July 31, 19981,900% over the limit
4-Nitrophenol1042July 31, 19981,900% over the limit
4,6-Dinitro-o-cresol1042July 31, 19981,900% over the limit
Hexachlorobenzene1042July 31, 19984,900% over the limit
3,4-Benzofluoranthene1042July 31, 19984,900% over the limit
LC50 Static 48Hr Acute D. Pulex222August 31, 201754% over the limit
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia222February 28, 202376% over the limit
BOD, 5-day, 20 deg. C022October 31, 200499,999% over the limit
LC50 Static 48Hr Acute Pimephales promelas211February 28, 20253% over the limit
Nickel, total [as Ni]1570
1,2-Dichloroethane1060
Pyrene1060
1,1-Dichloroethane1060
1,1,1-Trichloroethane1060
1,1,2-Trichloroethane1060
1,2-Dichlorobenzene1060
1,2,4-Trichlorobenzene1060
1-Butanol660
Acrylamide640
Ethanol640
Furfural240
Epichlorohydrin240
Copper, total [as Cu]1530
Chromium, total [as Cr]1420
Benzene1420
Tetrachloroethylene1420
1,2-Dichloropropane1420
Ethylbenzene1420
Chlorobenzene1220
Methylene chloride1220
Styrene1220
Carbon tetrachloride1020
Chloroform1020

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

DateWhat EPA recordedAgency
December 8, 2025Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
December 8, 2025Reporting Violations - Improper/ Incorrect ReportingST6
December 8, 2025Management Practice Violations - Best Management Practice DeficienciesST6
December 8, 2025Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
December 8, 2025Management Practice Violations - Failure to Maintain RecordsST6
December 8, 2025Effluent Violations - Failed Toxicity TestST6
December 8, 2025Reporting Violations - Failure to NotifyST6
December 8, 2025Monitoring Violations - Failure to Monitor for Toxicity RequirementsST6
December 8, 2025Monitoring Violations - Improper Analysis or Lab ErrorST6
April 23, 2025Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
April 23, 2025Monitoring Violations - Invalid/Unrepresentative SampleST6
April 23, 2025Permit Violations - Violation Specified in CommentST6
April 9, 2024Management Practice Violations - Improper Operation and MaintenanceST6
April 9, 2024Permit Violations - Violation Specified in CommentST6
April 9, 2024Permit Violations - Discharge Without a Valid PermitST6
April 9, 2024Effluent Violations - Numeric effluent violationST6
March 21, 2024Permit Violations - Unapproved OperationST6
March 21, 2024Effluent Violations - Unapproved BypassST6
March 21, 2024Reporting Violations - Failure to NotifyST6
November 10, 2020Effluent Violations - Numeric effluent violationST6

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.

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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 CT0000086 there.

Nearby on the register

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

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