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EPA-regulated facilities in St. Lawrence County, NY

There are 1,250 EPA-regulated facilities inside St. Lawrence County, New York. The most common kinds are hazardous waste (480), water discharge (409), drinking water systems (321). 7 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 47 have a violation on record. Penalties over the last five years total $5.8M across 17 sites.

Open the map of St. Lawrence County

1,250facilities in the county
7in significant noncompliance
47with a violation on record
$5.8Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste480
Large quantity generators50
Small quantity generators153
Chemical (RMP/TRI)30
Superfund10
Air emissions115
Major sources6
Synthetic minor sources28
Minor sources36
Water discharge409
Major permits13
Minor permits242
Drinking water systems321
Greenhouse gas reporters8
Data centers1

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 St. Lawrence County

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.