- EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
- Lithium: found in 12 of 12 samples, average 87.2 µg/L, highest 128 µg/L (EPA UCMR 5 testing, Jun 2025–Mar 2026)
Public EPA test results
What EPA records show for Belen Water System
EPA system ID NM3524932 · serves Belen, NM · about 10,830 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
Belen Water System (EPA NM3524932)
What EPA records show for Belen Water System, as of October 14, 2026
23 health-standard violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead: 9 in 10 homes tested came in at or below 0 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, 2026–Jun 30, 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 1.
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 Belen Water System use chloramine?
We didn't find chloramine in Belen Water System's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)