EPA-regulated facilities in Clark County, OH

There are 844 EPA-regulated facilities inside Clark County, Ohio. The most common kinds are hazardous waste (392), drinking water systems (253), air emissions (176). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 44 have a violation on record. Penalties over the last five years total $5.5M across 5 sites.

Open the map of Clark County

844facilities in the county
3in significant noncompliance
44with a violation on record
$5.5Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste392
Treatment, storage or disposal2
Large quantity generators5
Small quantity generators146
Transporters2
Chemical (RMP/TRI)41
Superfund14
Air emissions176
Major sources3
Synthetic minor sources15
Minor sources132
Water discharge152
Major permits3
Minor permits46
Drinking water systems253
Greenhouse gas reporters2
Data centers2

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 Clark 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.