- EPA's UCMR 5 testing looked for 30 contaminants here and found 2.
- Lithium: found in 8 of 8 samples, average 17.8 µg/L, highest 26 µg/L (EPA UCMR 5 testing, Jun 2023–Mar 2024)
Public EPA test results
What EPA records show for Nueces County Wcid 4
EPA system ID TX1780006 · serves Nueces County, TX · about 14,880 people (EPA records)
Here's what EPA has on file for this water system: its testing for newer contaminants like PFAS (UCMR 5), lead testing and violations. It's not a test of your tap, and there's no Water Score here.
Public EPA test results
Nueces County Wcid 4 (EPA TX1780006)
What EPA records show for Nueces County Wcid 4, as of October 14, 2026
4 health-standard violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead: 9 in 10 homes tested came in at or below 1.04 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2024–Dec 31, 2026). This is one number for the whole water system, from homes the utility tested. It isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 2.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Nueces County Wcid 4 use chloramine?
EPA treatment records (state-reported) list chloramines for Nueces County Wcid 4. EPA record
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)