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EPA-regulated facilities in Lower Connecticut River Valley Planning Region, CT

There are 10,599 EPA-regulated facilities inside Lower Connecticut River Valley Planning Region, Connecticut. The most common kinds are drinking water systems (9,603), hazardous waste (495), water discharge (433). 38 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 413 have a violation on record. Penalties over the last five years total $134k across 3 sites.

Open the map of Lower Connecticut River Valley Planning Region

10,599facilities in the county
38in significant noncompliance
413with a violation on record
$134kin penalties, last 5 years

By category

CategoryFacilities
Hazardous waste495
Treatment, storage or disposal4
Large quantity generators13
Small quantity generators203
Transporters8
Chemical (RMP/TRI)58
Superfund14
Air emissions181
Major sources7
Synthetic minor sources6
Minor sources127
Water discharge433
Major permits6
Minor permits274
Drinking water systems9,603
Greenhouse gas reporters4
Scrap yards1
Recycling centers3

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

Towns in Lower Connecticut River Valley 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.