Public EPA test results
Can you drink North Alamo tap water? What EPA records show
EPA TX1080029 · serves Hidalgo County, TX · about 171,195 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
North Alamo WSC (EPA TX1080029)
ScoreYourWater.com gives no verdict on your tap water; it shows what the public records say, as of October 14, 2026. For North Alamo's main utility, North Alamo WSC: 2 health-based violations since July 1, 2021 in EPA records (EPA SDWIS). PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
What EPA records show for North Alamo WSC, as of October 14, 2026
2 health-based violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead, 90th percentile: 0.32 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2024–Dec 31, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 6.
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 North Alamo WSC use chloramine?
EPA treatment records (state-reported) list chloramines for North Alamo WSC. EPA record
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)