EPA-regulated facilities in Medina County, TX
There are 453 EPA-regulated facilities inside Medina County, Texas. The most common kinds are water discharge (353), hazardous waste (44), drinking water systems (32). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 7 have a violation on record. Penalties over the last five years total $44k across 5 sites.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 44 |
| Large quantity generators | 1 |
| Small quantity generators | 14 |
| Transporters | 2 |
| Chemical (RMP/TRI) | 7 |
| Superfund | 1 |
| Air emissions | 19 |
| Minor sources | 4 |
| Water discharge | 353 |
| Major permits | 1 |
| Minor permits | 340 |
| Drinking water systems | 32 |
| Data centers | 5 |
| Recycling centers | 2 |
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.
- DISCOVER CHURCH-PLANT - 15495 US 90 W Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- H L ZUMWALT CONSTRUCTION $19k in penalties
- RIO MEDINA OPERATION $13k in penalties
- LEGACY HILLS SUBDIVISION $8k in penalties
- CITY OF NATALIA WWTP $4k in penalties
- L-C TRANSPORT $656 in penalties
Superfund sites
Data centers
- MICROSOFT SAT 8990 DATA CENTER PROJECT SITE
- Microsoft SAT 82
- Microsoft SAT 81
- Microsoft SAT 80
- Microsoft TRP3 (SAT46)
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.