Public EPA test results
Litchfield Park, AZ tap water: what EPA records show
EPA AZ0407046 · serves Litchfield Park, AZ · about 57,070 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
Liberty Water Lpsco (EPA AZ0407046)
ScoreYourWater.com gives no verdict on your tap water; it shows what the public records say, as of October 14, 2026. For Litchfield Park's main utility, Liberty Water Lpsco: 1 health-based violation since July 1, 2021 in EPA records (EPA SDWIS). This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
What EPA records show for Liberty Water Lpsco, as of October 14, 2026
Health-based violation: Groundwater Rule, Groundwater Rule, Dec 2023–Oct 2024 (EPA SDWIS).
Lead, 90th percentile: 0 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.
This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
EPA's UCMR 5 testing looked for 30 contaminants here and found 9.
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 Liberty Water Lpsco use chloramine?
We didn't find chloramine in Liberty Water Lpsco'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)