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Clean Water Act discharge permit · NPDES CT0001457

WHYCO FINISHING TECHNOLOGIES, Thomaston, CT: NPDES CT0001457 discharge permit, effluent exceedances, inspections, penalties

WHYCO FINISHING TECHNOLOGIES, held by WHYCO FINISHING TECHNOLOGIES,, holds NPDES permit CT0001457, which discharges to Naugatuck River. EPA’s file records it issued November 1, 1999 and expiring November 2, 2004. 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 filedWHYCO FINISHING TECHNOLOGIES
Permittee as filedWHYCO FINISHING TECHNOLOGIES,
NPDES IDCT0001457
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
IssuedNovember 1, 1999
Expiration dateNovember 2, 2004
AddressThomaston, CT 06787
Receiving waterNAUGATUCK RIVER
Receiving water impaired303(D) Listed
SubwatershedNorthfield Brook-Naugatuck River (HUC 011000051105)
Other EPA IDs (FRS)RCRA handler CTD001450154; ICIS-AIR source CT0000000900500005

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
Fluoride, free04442December 31, 200799% over the limit
Solids, total suspended03634July 31, 2007180% over the limit
Cyanide, total [as CN]03127January 31, 2004259% over the limit
Cyanide, free [amenable to chlorination]02927August 31, 2005254% over the limit
Lead, total [as Pb]01915August 31, 2001943% over the limit
Nitrogen, ammonia total [as N]01612August 31, 2003133% over the limit
Nickel, total [as Ni]01412September 30, 2008160% over the limit
Chromium, hexavalent [as Cr]086August 31, 20083,388% over the limit
Copper, total [as Cu]095June 30, 200331% over the limit
Zinc, total [as Zn]095August 31, 2008174% over the limit
Chromium, total [as Cr]075January 31, 2007213% over the limit
Iron, total [as Fe]042September 30, 200829% over the limit
pH031May 31, 2003
LC50 Static 48Hr Acute Pimephales promelas021July 31, 200868% over the limit
Chlorine, total residual060
BOD, 5-day, 20 deg. C040
Nitrogen, nitrite total [as N]040
Nitrogen, nitrate total [as N]040
Nitrogen, Kjeldahl, total [as N]040
Cadmium, total [as Cd]040
Silver, total [as Ag]040
Phosphorus, total [as P]020
Fluoride, total [as F]020
Cobalt, total [as Co]020
Tin, total [as Sn]020
Chlorine, free available020
Temperature, water deg. fahrenheit010
Flow rate010
Aluminum, total [as Al]010
Surfactants [MBAS]010
Flow, maximum during 24 hr period010
Flow010
Organics, total toxic [TTO]010
LC50 Static 48Hr Acute D. Pulex010

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 CT0001457.

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 September 15, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES CT0001457, held by WHYCO FINISHING TECHNOLOGIES in Thomaston, CT, which discharges to the Naugatuck River and is listed as administratively continued. The page lists 0 pollutants under a numeric limit and 14 pollutants with an effluent exceedance.