EPA-regulated facilities in Williamson County, IL

There are 509 EPA-regulated facilities inside Williamson County, Illinois. The most common kinds are hazardous waste (202), air emissions (172), water discharge (164). 7 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 35 have a violation on record. Penalties over the last five years total $5.3M across 1 site.

Open the map of Williamson County

509facilities in the county

7in significant noncompliance

35with a violation on record

$5.3Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	202
Treatment, storage or disposal	3
Large quantity generators	5
Small quantity generators	86
Chemical (RMP/TRI)	27
Superfund	3
Air emissions	172
Major sources	3
Synthetic minor sources	5
Minor sources	140
Water discharge	164
Major permits	3
Minor permits	143
Drinking water systems	31
Greenhouse gas reporters	2
Recycling centers	2

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.

BLAIRSVILLE PWD IL Significant noncompliance
DEVILS KITCHEN WATER DISTRICT IL Significant noncompliance
MARION, CITY OF 1102 TOWER SQUARE PLAZA, MARION, IL, 62959 Significant noncompliance
PERMA-TREAT OF ILLINOIS INC 1800 PERMATREAT DRIVE, MARION, IL, 62959 Significant noncompliance
CRAB ORCHARD GRADE & HS STP 18189 CORY BAILY STREET, MARION, IL, 62959 Significant noncompliance
WILLIAMSON ENERGY LLC 18000 DEAN RD, JOHNSTON CITY, IL, 62951 Significant noncompliance
LINCOLN GRADE SCHOOL STP RURAL ROUTE #1, JOHNSTON CITY, IL, 62951 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE 1810 INDUSTRIAL DR., MARION, IL, 62959 $5.3M in penalties

Superfund sites

MARION DRUMS SITE APPROXIMATELY 200 YDS. SOUTH OF 1321 S. VAN BUREN, MARION, IL, 62959
PERMA-TREAT OF ILLINOIS, INC NORTH CARBON & INDUSTRIAL PARK, MARION, IL, 62959
SANGAMO ELECTRIC DUMP/CRAB ORCHARD NATIONAL WILDLIFE REFUGE (USDOI) EAST OF STATE ROUTE 148, CARTERVILLE, IL, 62959

Towns in Williamson 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.