Webb County, TX
The federal environmental record for Webb County (population 269,148): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
1
federal cleanup sites
2
PFAS-detecting water systems
7
TRI facilities
10
open tank releases
Drinking water: PFAS testing
Public water systems serving Webb with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| CITY OF LAREDO TX2400001 | PFBA: 10.6 ng/L | detected |
| WEBB COUNTY WATER UTILITIES TX2400022 | PFBA: 5.1 ng/L PFPeA: 3.4 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
7 facilities in Webb filed TRI reports for 2024, totalling 1.9M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| MIDWEST STERILIZATION CORP | LAREDO | Ethylene glycol, Ethylene oxide | 1.8M lb |
| THOMPSONVILLE GAS PLANT | MIRANDO CITY | n-Hexane, Benzene | 16k lb |
| LAREDO BORDER PATROL SECTOR HQ TX11589 | LAREDO | Lead | 12k lb |
| PILOT THOMAS LOGISTCS LLC - LAREDO | LAREDO | Methanol, n-Hexane | 1k lb |
| RELADYNE SUN COAST LLC | LAREDO | - | 0 lb |
| PLM STEEL PIPES & TUBES | LAREDO | - | 0 lb |
| REVEILLE CRYOGENIC PLANT | LAREDO | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 375 tank facilities in Webb: 276 tanks in service and 666 closed. 197 fuel releases are on record, of which 10 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Webb as Zone 3, the lowest predicted indoor radon (under 2 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Webb, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- MAYNARD DRUMS OF LAREDOLAREDO