EPA-regulated facilities in Stephenson County, IL

There are 524 EPA-regulated facilities inside Stephenson County, Illinois. The most common kinds are water discharge (196), air emissions (193), hazardous waste (133). 6 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 22 have a violation on record. Penalties over the last five years total $3k across 1 site.

Open the map of Stephenson County

524facilities in the county
6in significant noncompliance
22with a violation on record
$3kin penalties, last 5 years

By category

CategoryFacilities
Hazardous waste133
Treatment, storage or disposal1
Large quantity generators3
Small quantity generators66
Chemical (RMP/TRI)22
Superfund5
Air emissions193
Major sources2
Synthetic minor sources3
Minor sources161
Water discharge196
Major permits1
Minor permits146
Drinking water systems65
Greenhouse gas reporters2
Scrap yards1

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.

Superfund sites

Towns in Stephenson 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.