EPA-regulated facilities in St. Clair County, MO

There are 105 EPA-regulated facilities inside St. Clair County, Missouri. The most common kinds are water discharge (55), hazardous waste (20), drinking water systems (19). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 6 have a violation on record. Penalties over the last five years total $5.3M across 1 site.

Open the map of St. Clair County

105facilities in the county
2in significant noncompliance
6with a violation on record
$5.3Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste20
Small quantity generators3
Transporters2
Air emissions16
Minor sources10
Water discharge55
Minor permits50
Drinking water systems19

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.

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.