Pollution in Southeastern Connecticut Planning Region, Connecticut

12 facilities in Southeastern Connecticut Planning Region, Connecticut reported releasing 29,000 lb of toxic chemicals on site in 2024. Of every 100 pounds, 100 went into the air, 0 into water and 0 onto or into land. There is 1 Superfund site. 19 facilities are currently in significant violation of a federal environmental law.

29,000 lbreleased on site, 2024
29,000 lbof that into the air
1Superfund sites
19in significant violation

Superfund siteReports toxic releases (TRI)In significant violation

Toxic Release Inventory · 2024

Where Southeastern Connecticut Planning Region's reported pounds went

Not counted above: another 30,000 lb shipped off site for disposal somewhere else.

Largest releases to air

What leaves stacks and vents — the pathway closest to the people living nearby.

FacilityIndustryWhere it wentTo airTotal
Prysmian Cable & Systems LlcWillimanticElectrical Equipment14.1k14.1k
Americas Styrenics Allyns Point PlantGales FerryChemicals9.9k9.9k
United Abrasives IncNorth WindhamNonmetallic Mineral Product4.3k4.3k
Nalas Engineering Services IncNorwichChemicals476476
Pcc StructuralsGrotonPrimary Metals391391
Electric Boat CorpGrotonTransportation Equipment3774
Doncasters Inc Precision Castings New EnglandGrotonPrimary Metals2035
Us Dod-Naval Submarine Base New LondonGrotonOther00
Montville Power LlcUncasvilleElectric Utilities—0

Largest totals, all pathways

Bar length is to scale across this table; colors show where each facility's pounds went.

FacilityIndustryWhere it wentTo airTotal
Prysmian Cable & Systems LlcWillimanticElectrical Equipment14.1k14.1k
Americas Styrenics Allyns Point PlantGales FerryChemicals9.9k9.9k
United Abrasives IncNorth WindhamNonmetallic Mineral Product4.3k4.3k
Nalas Engineering Services IncNorwichChemicals476476
Pcc StructuralsGrotonPrimary Metals391391
Electric Boat CorpGrotonTransportation Equipment3774
Doncasters Inc Precision Castings New EnglandGrotonPrimary Metals2035
Montville Power LlcUncasvilleElectric Utilities—0
Us Dod-Naval Submarine Base New LondonGrotonOther00
Superfund

1 Superfund site in Southeastern Connecticut Planning Region

SiteCleanup stageHuman exposureGroundwater
New London Submarine BaseNew LondonCleanup underwayUnder controlUnder control
EPA enforcement · ECHO

In significant violation

19 facilities in Southeastern Connecticut Planning Region. Boxes show how many of the last 12 quarters each spent out of compliance under its worst program (EPA publishes the count, not which quarters).

FacilityLawLast 12 quartersPenalties
Kofkoff Egg FarmBozrah— 12/12—
Target Store T2433LisbonHazardous waste 12/12—
Cvs Pharmacy 943WillimanticHazardous waste 12/12—
Colchester CourtyardsColchester— 0/12—
Hilltop Inn & SuitesNorth Stonington— 12/12—
Thayer BuildingNorwich— 12/12—
U.s. Naval Submarine Base New London (Subasenlon)Groton— 11/12—
Round Hill LlcPreston— 0/12—
Montville Water Pollution Control FacilityMontville (Uncasville)— 10/12—
St. Bernard School-Dual Calcite FilterUncasville— 0/12—
Freedom Village Elderly HousingMontville— 0/12—
Ox Owner, Llc.Uncasville— 8/12—
Groton WpcfGroton— 8/12—
Electric Boat CompanyGroton— 8/12—
Aces High Rv ParkEast Lyme— 5/12—
Flanders Run Association, Inc.East Lyme— 5/12—
Douglas Manor Convalescent HomeWindham— 4/12—
Us Coast Guard AcademyNew LondonHazardous waste 3/12—
Pondcliff Condominium AssociationNiantic— 3/12—

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