Clean Water Act discharge permit · NPDES CT0030279

CITY OF STAMFORD, Stamford, CT: NPDES CT0030279 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
17Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

CITY OF STAMFORD, held by City of Stamford, holds NPDES permit CT0030279. EPA’s file records it issued March 18, 2005 and expiring March 31, 2010.

CITY OF STAMFORD, Stamford, Connecticut: Individual permit CT0030279, held by City of Stamford; Administratively continued (past its expiration date and still in force until reissued); issued March 18, 2005, term to March 31, 2010, by CTDEP.

Report due [yrmoda]: 0 limits, 8 violations of any kind, 0 effluent exceedances.
Temperature, water deg. fahrenheit: 12 limits, 6 violations of any kind, 0 effluent exceedances.
BOD, 5-day, 20 deg. C: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Oxygen demand, chem. [low level] [COD]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
pH: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Oil & Grease: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Nitrogen, nitrate total [as N]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl, total [as N]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Hardness, total [as CaCO3]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Cadmium, total [as Cd]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Copper, total [as Cu]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Zinc, total [as Zn]: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Whole effluent toxicity: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Enterococci: 12 limits, 6 violations of any kind, 0 effluent exceedances.
Coliform, fecal general: 12 limits, 6 violations of any kind, 0 effluent exceedances.

December 12, 2023: WW Storm Water MS4 - Failure to submit required report (non-DMR) (ST6).

CITY OF STAMFORD among its neighbors

EPA’s permit file holds 11 discharge permits in the Fivemile River subwatershed (HUC 011000060404), CT0030279 among them. Its county holds 147, 14 of them major permits; CT0030279 is a minor permit.

Other permits in the Fivemile River subwatershed (HUC 011000060404)

10 NATHAN HALE DRIVE, Norwalk: CTR050141, minor permit, permit term to September 30, 2030
CITY OF STAMFORD WPCF, Stamford: CT0101087, major permit, discharging to STAMFORD HARBOR, permit term to June 30, 2018
DARIEN HIGH SCHOOL, Darien: CTR100030, minor permit, permit term to October 1, 2007
DURHAM SCHOOL SERVICES LP, Norwalk: CTR050058, minor permit, permit term to September 30, 2030
LEONARD STEWART K & MARIANNE RESIDENCE, Westport: CTRSW0144, minor permit, discharging to Southwest Shoreline, permit term to March 1, 2026
NEW CANAAN STP, New Canaan: CT0101273, major permit, discharging to FIVE MILE RIVER, permit term to September 30, 2020
NEW CANAAN STP, New Canaan: CTL101273, minor permit, permit term to December 31, 2025
STAMFORD URBY, Stamford: CTRSW0061, minor permit, permit term to March 1, 2025
STAMFORD WPCA, Stamford: CTL101087, minor permit, permit term to December 31, 2025
USDOT- STAMFORD RAILYARD, Stamford: CTDRW0004, minor permit, permit term to October 31, 2030

Identity

Facility as filed	CITY OF STAMFORD
Permittee as filed	City of Stamford
NPDES ID	CT0030279
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 18, 2005
Expiration date	March 31, 2010
Issuing agency	CTDEP
Address	Stamford, CT 06904
Subwatershed	Fivemile River (HUC 011000060404)

Effluent limits and exceedances

18Pollutants on file
17Under a numeric limit
18With 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
Report due [yrmoda]	0	8
Temperature, water deg. fahrenheit	12	6
BOD, 5-day, 20 deg. C	12	6
Oxygen demand, chem. [low level] [COD]	12	6
pH	12	6
Solids, total suspended	12	6
Oil & Grease	12	6
Nitrogen, nitrate total [as N]	12	6
Nitrogen, Kjeldahl, total [as N]	12	6
Phosphorus, total [as P]	12	6
Hardness, total [as CaCO3]	12	6
Cadmium, total [as Cd]	12	6
Copper, total [as Cu]	12	6
Lead, total [as Pb]	12	6
Zinc, total [as Zn]	12	6
Whole effluent toxicity	12	6
Enterococci	12	6
Coliform, fecal general	12	6

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CT0030279.

Inspections, violations and enforcement

1Single-event violations

Date	What EPA recorded	Agency
December 12, 2023	WW Storm Water MS4 - Failure to submit required report (non-DMR)	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES CT0030279.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES CT0030279.

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

This public-records page covers NPDES permit CT0030279, held by City of Stamford in Stamford, CT, which is listed as an administratively continued Minor Discharger permit issued March 18, 2005 and expiring March 31, 2010. The page lists 18 pollutants on file, 17 of them under a numeric limit, 18 with a violation of any kind, and 0 with an effluent exceedance, within the Fivemile River subwatershed (HUC 011000060404).