EPA-regulated facilities near Norwalk, CT

There are 556 EPA-regulated facilities within 5 miles of Norwalk, Connecticut. The most common kinds are hazardous waste (370), water discharge (131), air emissions (96). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 14 have a violation on record. Penalties over the last five years total $5.4M across 2 sites.

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556facilities within 5 miles

3in significant noncompliance

14with a violation on record

$5.4Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	370
Treatment, storage or disposal	2
Large quantity generators	4
Small quantity generators	159
Transporters	1
Chemical (RMP/TRI)	27
Superfund	9
Air emissions	96
Major sources	1
Synthetic minor sources	5
Minor sources	75
Water discharge	131
Major permits	4
Minor permits	56
Drinking water systems	9
Greenhouse gas reporters	1
Data centers	1
Recycling centers	1

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.

LEONARD STEWART K & MARIANNE RESIDENCE 17 SURF ROAD, WESTPORT, CT, 06880 · 2.1 mi Significant noncompliance
NOROTON HEIGHTS SHOPPING CENTER, INC. 264 HEIGHTS ROAD, DARIEN, CT, 06820 · 4.3 mi Significant noncompliance
SILVERMINE WOODS HOMEOWNERS ASSOC SILVERMINE ROAD, BROOKFIELD, CT, 06804 · 4.6 mi Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE - NORWALK (CTNLK) 190 MARTIN LUTHER KING DR, NORWALK, CT, 06850 · 0.7 mi $5.3M in penalties
ECOMETICS INC 19 CONCORD ST, NORWALK, CT, 06854 · 0.1 mi $73k in penalties

Superfund sites

DONAHUE PROPERTY PLATT ST AND CHARLES STREET, NORWALK, CT, 06855 · 0.8 mi
KING INDUSTRIES, INC. 2 SCIENCE ROAD, NORWALK, CT, 06852 · 1.1 mi
BRIDGEPORT BRASS (FORMER) 391 & 395 CONNECTICUT AVENUE, NORWALK, CT, 06854 · 1.2 mi
NORTHEAST UTILITIES HARBOR AVENUE, NORWALK, CT, 06850 · 1.3 mi
KELLOGG-DEERING WELL FIELD NORWALK WATER DEPARTMENT, NORWALK, CT, 06856 · 2.7 mi
MATHEIS COURT PROPERTY 270 MAIN STREET (BEHIND), NORWALK, CT, 06851 · 3.2 mi
SPERRY SEMICONDUCTOR 380 MAIN AVENUE, NORWALK, CT, 06856 · 3.3 mi
DIP & STRIP 625 MAIN STREET ROUTE 7, NORWALK, CT, 06850 · 4.0 mi
PERKIN ELMER CHROM DIVISION 761 MAIN AVENUE, NORWALK, CT, 06859 · 4.6 mi

Data centers

Unnamed data center (OSM) 6 Norden Place, Norwalk · 2.1 mi

County

Western Connecticut Planning Region

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 Norwalk as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.