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Clean Water Act discharge permit · NPDES CTP002388

MODERN METAL FINISHING, LLC, Oxford, CT: NPDES CTP002388 discharge permit, effluent exceedances, inspections, penalties

MODERN METAL FINISHING, LLC, held by MODERN METAL FINISHING CO INC, holds NPDES permit CTP002388, which discharges to Naugatuck River. EPA’s file records it issued April 22, 2009 and expiring April 30, 2014. 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 filedMODERN METAL FINISHING, LLC
Permittee as filedMODERN METAL FINISHING CO INC
NPDES IDCTP002388
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual industrial user permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedApril 22, 2009
Expiration dateApril 30, 2014
Issuing agencyCT DEP
AddressOxford, CT 06478
Receiving waterNAUGATUCK RIVER
Other EPA IDs (FRS)RCRA handler CTR000504340; ICIS-AIR source CT0000000900907824

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

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.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended133October 31, 2008182% over the limit
Phosphorus, total [as P]042August 31, 202254% over the limit
pH, maximum071April 30, 2026
Organics, total toxic [TTO]121December 31, 201341% over the limit
pH2120
Oil petroleum, total recoverable070
Zinc, total [as Zn]260
pH, minimum050
Arsenic, total [as As]040
Silver, total [as Ag]230
Cadmium, total [as Cd]220
Flow rate120
Cyanide, total [as CN]120
Selenium, total [as Se]020
Flow110
Chromium, total [as Cr]200
Copper, total [as Cu]200
Lead, total [as Pb]200
Nickel, total [as Ni]200
Iron, total [as Fe]100
Aluminum, total [as Al]100
Surfactants [MBAS]100
Flow, maximum during 24 hr period100

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
April 29, 2026Reporting Violations - Improper/ Incorrect ReportingST6
February 11, 2025Reporting Violations - Improper/ Incorrect ReportingST6
March 7, 2024Permit Violations - Violation Specified in CommentST6
March 7, 2024Reporting Violations - Improper/ Incorrect ReportingST6
March 7, 2024Reporting Violations - Failure to NotifyST6

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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Nearby on the register

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

What this page shows

This public-records page covers NPDES discharge permit CTP002388, held by MODERN METAL FINISHING, LLC in Oxford, CT, which discharges to the Naugatuck River. The permit was issued April 22, 2009 and expired April 30, 2014, and is listed as administratively continued, with 4 pollutants under a numeric limit and 4 pollutants with an effluent exceedance.