Clean Water Act discharge permit · NPDES CTR050012

COLONIAL COATINGS CORPORATION, Milford, CT: NPDES CTR050012 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
16Pollutants under a numeric limit
0Pollutants with an effluent exceedance

COLONIAL COATINGS CORPORATION, held by COLONIAL COATINGS, INC., holds NPDES permit CTR050012. EPA’s file records it issued June 15, 2026 and expiring September 30, 2030. 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.

What the register holds for COLONIAL COATINGS CORPORATION: its NPDES ID, its permit type and status, its dates, its address in Milford, Connecticut, and 16 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CTR050012.

Identity

Facility as filed	COLONIAL COATINGS CORPORATION
Permittee as filed	COLONIAL COATINGS, INC.
NPDES ID	CTR050012
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	June 15, 2026
Expiration date	September 30, 2030
Issuing agency	CT DEEP
Address	Milford, CT 06461
Subwatershed	Housatonic River-Frontal Long Island Sound (HUC 011000051302)

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

Effluent limits and exceedances

16Pollutants on file
16Under a numeric limit
0With a violation of any kind
0With 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.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
pH	4	0	0
Conductivity	2	0	0
Solids, total suspended	2	0	0
Oil & Grease	2	0	0
Nitrogen, Kjeldahl, total [as N]	2	0	0
Phosphorous, total recoverable	2	0	0
Hardness, total [as CaCO3]	2	0	0
Zinc, total recoverable	2	0	0
Aluminum, total recoverable	2	0	0
Lead, total recoverable	2	0	0
Copper, total recoverable	2	0	0
Nitrogen, nitrate total [as NO3]	2	0	0
Chemical Oxygen Demand [COD]	2	0	0
LC50 Static 48Hr Acute D. Pulex	2	0	0
NOAEL Static 48Hr Acute D. pulex	2	0	0
%Surv Static 48Hr Acute Daphnia Pulex	2	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CTR050012.

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 CTR050012.

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, CTR050012.

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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 CTR050012 there.

Nearby on the register

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

This page covers Clean Water Act NPDES permit CTR050012, held by COLONIAL COATINGS CORPORATION in Milford, CT, with the permit status shown as Effective and the Minor Discharger class. The register lists 16 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and the permit was issued June 15, 2026 and expires September 30, 2030.