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Clean Water Act discharge permit · NPDES CTDRW0009

CTDOT GROUNDWATER TREATMENT FACILITY, New Haven, CT: NPDES CTDRW0009 discharge permit, effluent exceedances, inspections, penalties

CTDOT GROUNDWATER TREATMENT FACILITY, held by Connecticut Department of Transportation, holds NPDES permit CTDRW0009. EPA’s file records it issued August 4, 2026 and expiring October 31, 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 CTDOT GROUNDWATER TREATMENT FACILITY: its NPDES ID, its permit type and status, its dates, its address in New Haven, Connecticut, and 24 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CTDRW0009.

Identity

Facility as filedCTDOT GROUNDWATER TREATMENT FACILITY
Permittee as filedConnecticut Department of Transportation
NPDES IDCTDRW0009
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 4, 2026
Expiration dateOctober 31, 2030
Issuing agencyCT DEEP
AddressNew Haven, CT 06512

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

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
pH400
pH, minimum200
Flow rate100
Solids, total suspended100
Arsenic, total [as As]100
Barium, total [as Ba]100
Chromium, total [as Cr]100
Copper, total [as Cu]100
Iron, total [as Fe]100
Lead, total [as Pb]100
Nickel, total [as Ni]100
Silver, total [as Ag]100
Vanadium, total [as V]100
Zinc, total [as Zn]100
Selenium, total [as Se]100
Polynuclear Aromatic Hydrocarbons [PAHs]100
Flow, maximum during 24 hr period100
Volatile Organic Compound [VOC]100
pH, maximum100
Solids, total dissolved [TDS]100
Mercury, total [as Hg]100
Flow100
Boron, total100
Turbidity, lab, NTU100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CTDRW0009.

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 CTDRW0009.

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 CTDRW0009 there.

Nearby on the register

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

What this page shows

This register page covers the NPDES discharge permit CTDRW0009 held by the Connecticut Department of Transportation for the CTDOT GROUNDWATER TREATMENT FACILITY in New Haven, CT, with its status shown as Effective and its issue and expiration dates recorded. The figures listed are 24 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.