Arsenic in La Feria, TX Drinking Water
Arsenic data for La Feria, Texas · 12,752 residents · 1 ZIP code
Within La Feria, Texas, Arsenic has been detected in water samples drawn from the public supply — the results are part of the official EPA compliance record for systems here.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-06-04
Arsenic in La Feria Tap Water
La Feria, Texas has 4 EPA violations related to arsenic in drinking water.
This analysis covers 12,752 residents across 1 ZIP code in La Feria.
La Feria's overall water quality grade is B (79/100).
Is Arsenic in La Feria Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis filter certified under NSF 53 / NSF 58 and testing your water independently.
EPA Violations for Arsenic in La Feria
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2022-04-01 | Arsenic (Resolved) | Resolved | 78559 |
| 2022-01-01 | Arsenic (Known) | Known | 78559 |
| 2021-10-01 | Arsenic (Known) | Known | 78559 |
| 2021-07-01 | Arsenic (Known) | Known | 78559 |
Health Effects of Arsenic
- Increased risk of skin, bladder, lung, and kidney cancer
- Cardiovascular disease and type 2 diabetes
- Skin changes (darkening, thickening, lesions)
- Developmental effects in children exposed in utero
Health risk severity: High. Governed by the Arsenic Rule (2006).
How Arsenic Gets Into Drinking Water
- Natural deposits in rock and soil (especially in western U.S.)
- Runoff from orchards and glass/electronics production
- Historical use of arsenic-based pesticides
- Well water in areas with arsenic-rich geology
What to Do About Arsenic in La Feria Water
- Install a reverse osmosis (RO) system certified under NSF 58
- Adsorptive media filters (iron-based) can also reduce arsenic
- Have well water tested if on a private supply
- Boiling water does NOT remove arsenic — it concentrates it
Look for filters certified under NSF 53 / NSF 58 for arsenic removal.