Pollution in New Haven County, Connecticut

New Haven County contains 427 EPA-regulated facilities, 48 of which are currently flagged for significant noncompliance. The county also hosts 3 Superfund sites and 83 TRI chemical reporters. EPA has assessed $16.7M in lifetime penalties and TRI reporters disclosed roughly 238.8k lb of on-site releases. That facility count is well above the Connecticut state average of 96 per county.

Superfund3NPL sites
TRI Facilities83reporters
EPA Facilities427regulated
Sig. Violators48current SNC

Superfund sites

SiteCityStatus
Scovill Industrial LandfillWaterburyRemedy selected
Laurel Park IncNaugatuck BoroughReady for anticipated reuse
Beacon Heights LandfillBeacon FallsReady for anticipated reuse

Largest releasers

FacilityCityOn-site (lb)Status
Allnex Usa Inc., Wallingford Ct PlantWallingford83.8kCompliant
Ametek Specialty Metal ProductWallingford42.5kCompliant
Towantic Energy LlcOxford37.8kCompliant
Gbc Metals Llc Somers Thin StripWaterbury16.5kCompliant
E & J Parts Cleaning CoWaterbury14.0kPenalties
Roehm America LlcWallingford12.7kSig. violation
Motiva Enterprises LlcNew Haven10.0kCompliant
American Greenfuels, LlcNew Haven5.3kPenalties
3m Purification IncMeriden3.7kCompliant
Byk Usa IncWallingford3.0kCompliant
Global New Haven Terminals LlcNew Haven1.8kSig. violation
Waterbury Peaking Elec Generating PlantWaterbury1.7kPenalties
Caap Co IncMilford1.5kCompliant
Tradebe Treatment & RecyclingMeriden913Sig. violation
Porce-Len, IncHamden655Compliant
American Electro ProductsWaterbury500Compliant
Deitsch Plastic Company, IncWest Haven438Compliant
Hubbard Hall IncWaterbury359Compliant
Linde Advanced Material Technologies IncNorth Haven324Compliant
LuvataWaterbury293Compliant
Current, IncEast Haven255Compliant
Sargent Manufacturing CoNew Haven127Compliant
Modern Metal Finishing Inc.Oxford124Compliant
Gateway TerminalNew Haven106Compliant
Turbine Components CorporationBranford80Compliant
Ulbrich Wire IncNorth Haven65Compliant
Echo Manufacturing Co IncWaterbury58Compliant
Marmon Utility LlcSeymour49Compliant
Active Oil Inc (Acv)New Haven44Compliant
Schick Manufacturing, Inc.Milford19Compliant
Accurate Wire, Inc.Branford13Compliant
Electric Cable CompoundsNaugatuck12Compliant
Ogs Technologies, LlcCheshire11Compliant
Kuehne New Haven LlcNew Haven7Compliant
Generation Bridge Ii Topco LlcNew Haven3Compliant
Nucor Steel Connecticut, Inc.Wallingford3Compliant
Consolidated Industries Aquisition CorporationCheshire2Sig. violation
Of Mossberg & Sons IncNorth Haven2Compliant
Suzio Asphalt Co Inc, LMeriden1Compliant
Algonquin Div Rea Magnetic WiresGuilford1Compliant
Mrm Industries Meriden FacilityMeriden1Compliant
Byk Usa IncNorth Haven1Compliant

Significant violators

FacilityCityPenaltiesLast Inspected
Global New Haven Terminals LlcNew Haven$2.0M2025-07-15
Glanbia Nutritionals (Na) Inc.West Haven$1.0M2022-04-07
Tradebe Treatment & RecyclingMeriden$71.4k2025-12-18
Nylo Metal Finishing LlcWaterbury$40.0k2026-01-07
Consolidated Industries Aquisition CorporationCheshire$19.1k2026-01-12
Roehm America LlcWallingford$18.0k2024-09-09
Bic Lighter Manufacturing PlantMilford$3.9k2023-06-22
Milford Transfer StationMilford$0
Northford Glen Condominium AssociationNorthford$0
Milford PlazaMilford$0
Town Of Madison SchoolsMadison$0
191 Foster Street Nh LlcNew Haven$02007-06-20
Guilford High SchoolGuilford$0
Ct Dot 59-138 & 59-145Madison$0
Home Depot Store #6212Waterbury$02022-07-11
Microtech IncCheshire$02025-12-18
Velocity Print SolutionsMiddlebury$0
Crc ChromeMeriden$02023-06-02
Brook & Whittle, LtdGuilford$02025-09-01
Big Y World Class MarketGuilford$0
Cvs Pharmacy 172Branford$02024-04-18
Waterbury Hospital Health CenterWaterbury$02025-04-30
Watson Foods Co IncWest Haven$02025-04-17
Walmart Store 3544Guilford$0
Accel International Holdings, LlcMeriden$02026-01-07
Stop & Shop Store #624Madison$0
Guilford CommonsGuilford$02008-08-12
Pfaltz And Bauer IncorporatedWaterbury$02025-12-04
Strathmore Farms Association, Inc.Madison$0
Hearth At Tuxis PondMadison$0
Direct Advantage LlcNorth Haven$02023-08-10
Village Victoria Condominium AssocGuilford$0
Southbury GreenSouthbury$0
Cvs Pharmacy 865Meriden$02024-05-30
Smm New England Corporation D/B/A Sims MetalNorth Haven$0
The Residences At 66 High StreetGuilford$0
Lutheran Home Of SouthburySouthbury$0
Legend Hill Condominium Association, Inc.Madison$0
Canal Commons Association, Inc.Hamden$0
Autumn Lake Healthcare At MadisonMadison$0
Southbury PlazaSouthbury$0
Melissa Jones SchoolGuilford$0
Seidel, Inc.Waterbury$02025-06-27
Central Transport International IncCheshire$02012-11-16
Omnicare Of Ct Value Health Care Serv LlcCheshire$02017-02-15
American Seal & EngineeringOrange$02026-02-18
Mta Metro-North Railroad Rail YardNew Haven$02019-03-21
Regional School District #16 Elementary SchoolProspect$0