EPA-regulated facilities in Mason County, KY
There are 163 EPA-regulated facilities inside Mason County, Kentucky. The most common kinds are water discharge (87), hazardous waste (69), air emissions (32). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 3 have a violation on record. Penalties over the last five years total $5.3M across 1 site.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 69 |
| Treatment, storage or disposal | 1 |
| Large quantity generators | 1 |
| Small quantity generators | 12 |
| Chemical (RMP/TRI) | 13 |
| Superfund | 3 |
| Air emissions | 32 |
| Major sources | 4 |
| Synthetic minor sources | 2 |
| Water discharge | 87 |
| Major permits | 3 |
| Minor permits | 80 |
| Drinking water systems | 5 |
| Greenhouse gas reporters | 4 |
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.
- MAYSVILLE-MASON COUNTY LANDFILL Significant noncompliance
- CARMEUSE LIME & STONE INC Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- UNITED PARCEL SERVICE, INC. $5.3M in penalties
Superfund sites
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.