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EPA-regulated facilities near Mamaroneck, NY

There are 1,777 EPA-regulated facilities within 5 miles of Mamaroneck, New York. The most common kinds are hazardous waste (1,499), water discharge (246), air emissions (155). 12 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 25 have a violation on record. Penalties over the last five years total $1.5M across 10 sites.

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1,777facilities within 5 miles
12in significant noncompliance
25with a violation on record
$1.5Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste1,499
Large quantity generators41
Small quantity generators203
Transporters3
Chemical (RMP/TRI)24
Superfund1
Air emissions155
Synthetic minor sources8
Minor sources145
Water discharge246
Major permits3
Minor permits118
Drinking water systems9
Recycling 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

County

Nearby towns

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. Distances are from the center of Mamaroneck as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.