EPA-regulated facilities in Mason County, TX
There are 42 EPA-regulated facilities inside Mason County, Texas. The most common kinds are water discharge (27), hazardous waste (6), air emissions (5). None is in significant noncompliance, but 3 have a violation on record. Penalties over the last five years total $19k across 1 site.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 6 |
| Small quantity generators | 3 |
| Transporters | 1 |
| Air emissions | 5 |
| Water discharge | 27 |
| Minor permits | 18 |
| Drinking water systems | 4 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
Largest penalties
Penalties assessed over the last five years.
- CITY OF MASON WWTP $19k in penalties
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.