- EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
- Lithium: found in 17 of 20 samples, average 11.4 µg/L, highest 18.4 µg/L (EPA UCMR 5 testing, Mar 2024–Sep 2024)
Public EPA test results
What EPA records show for City of Show Low
EPA system ID AZ0409026 · serves Show Low, AZ · about 17,139 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
City of Show Low (EPA AZ0409026)
What EPA records show for City of Show Low, as of October 14, 2026
Health-standard violation: Groundwater Rule, Groundwater Rule, Nov 2021–Jan 2022 (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, 2023–Dec 31, 2025). 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 City of Show Low use chloramine?
We didn't find chloramine in City of Show Low'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)