EPA-regulated facilities in Darke County, OH

There are 388 EPA-regulated facilities inside Darke County, Ohio. The most common kinds are drinking water systems (126), hazardous waste (124), water discharge (115). 5 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 31 have a violation on record. Penalties over the last five years total $1.6M across 2 sites.

Open the map of Darke County

388facilities in the county
5in significant noncompliance
31with a violation on record
$1.6Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste124
Large quantity generators4
Small quantity generators50
Chemical (RMP/TRI)18
Superfund4
Air emissions61
Major sources5
Synthetic minor sources10
Minor sources34
Water discharge115
Major permits1
Minor permits35
Drinking water systems126
Greenhouse gas reporters3

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

Towns in Darke 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.