Clean Water Act discharge permit · NPDES CT0101745

DEEP RIVER WPCF, Deep River, CT: NPDES CT0101745 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
47Pollutants under a numeric limit
5Pollutants with an effluent exceedance

DEEP RIVER WPCF, held by DEEP RIVER TOWN OF, holds NPDES permit CT0101745, which discharges to Connecticut River. EPA’s file records it issued September 6, 2017 and expiring September 30, 2022. 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 filed	DEEP RIVER WPCF
Permittee as filed	DEEP RIVER TOWN OF
NPDES ID	CT0101745
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 6, 2017
Expiration date	September 30, 2022
Issuing agency	CT DEP
Address	Deep River, CT 06417
Receiving water	CONNECTICUT RIVER
Subwatershed	Deep River-Connecticut River (HUC 010802050901)
Program components on file	Biosolids, POTW, Pretreatment
SIC	4952 – Sewerage Systems

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

49Pollutants on file
47Under a numeric limit
26With a violation of any kind
5With 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	2	32	2	October 31, 2004
BOD, 5-day, percent removal	1	18	2	January 31, 2025	23% over the limit
Solids, suspended percent removal	1	18	2	March 31, 2026	9% over the limit
NOAEL Static 48Hr Acute D. pulex	2	4	1	March 31, 2009	100% over the limit
NOAEL Static 48Hr Acute Pimephales promelas	2	4	1	March 31, 2009	100% over the limit
BOD, 5-day, 20 deg. C	5	45	0
Solids, total suspended	5	45	0
Flow, in conduit or thru treatment plant	0	28	0
Phosphorus, total [as P]	3	15	0
Enterococci	2	14	0
Coliform, fecal general	2	14	0
Flow rate	2	2	0
Polychlorinated biphenyls [PCBs]	1	2	0
Arsenic, sludge tot. dry wt [as As]	1	2	0
Beryllium, sludge, tot. dry wt [as Be]	1	2	0
Solids, total, percent	1	2	0
Solids, fixed, % of total solids	1	2	0
Solids, volatile % of total solids	1	2	0
Zinc, sludge, total, dry weight [as Zn]	1	2	0
Lead, sludge, total, dry weight [as Pb]	1	2	0
Nickel, sludge, total, dry weight [as Ni]	1	2	0
Mercury, sludge, total, dry weight [as Hg]	1	2	0
Chromium, sludge, total, dry weight [as Cr]	1	2	0
Copper, sludge, total, dry weight [as Cu]	1	2	0
Cadmium, sludge, total, dry weight [as Cd]	1	2	0
Carbonaceous BOD, 5 day, 20 deg C filtrd	0	1	0
Nitrogen, ammonia total [as N]	2	0	0
Nitrogen, nitrite total [as N]	2	0	0
Nitrogen, nitrate total [as N]	2	0	0
Cyanide, total [as CN]	2	0	0
Cyanide, free [amenable to chlorination]	2	0	0
Arsenic, total [as As]	2	0	0
Beryllium, total [as Be]	2	0	0
Cadmium, total [as Cd]	2	0	0
Chromium, hexavalent [as Cr]	2	0	0
Chromium, total [as Cr]	2	0	0
Copper, total [as Cu]	2	0	0
Iron, total [as Fe]	2	0	0
Lead, total [as Pb]	2	0	0
Thallium, total [as Tl]	2	0	0
Nickel, total [as Ni]	2	0	0
Silver, total [as Ag]	2	0	0
Zinc, total [as Zn]	2	0	0
Antimony, total [as Sb]	2	0	0
Aluminum, total [as Al]	2	0	0
Selenium, total [as Se]	2	0	0
Phenols	2	0	0
Chlorine, total residual	2	0	0
Mercury, total [as Hg]	2	0	0

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 CT0101745.

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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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 CT0101745 there.

Nearby on the register

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