EPA-regulated facilities in Western Connecticut Planning Region, CT

There are 2,800 EPA-regulated facilities inside Western Connecticut Planning Region, Connecticut. The most common kinds are hazardous waste (1,594), water discharge (753), air emissions (504). 28 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 104 have a violation on record. Penalties over the last five years total $12M across 11 sites.

Open the map of Western Connecticut Planning Region

2,800facilities in the county
28in significant noncompliance
104with a violation on record
$12Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste1,594
Treatment, storage or disposal12
Large quantity generators38
Small quantity generators627
Transporters14
Chemical (RMP/TRI)163
Superfund34
Air emissions504
Major sources10
Synthetic minor sources30
Minor sources378
Water discharge753
Major permits11
Minor permits416
Drinking water systems230
Greenhouse gas reporters5
Data centers2
Scrap yards1
Recycling centers4

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

Largest penalties

Penalties assessed over the last five years.

Superfund sites

Data centers

Towns in Western Connecticut Planning Region

Bordering counties

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.