Is Peoria, AZ tap water safe?
Supplied by City of Peoria · serves 187,676 people (47,872 connections) · Surface water · EPA ID AZ0407096
Data: U.S. EPA · How we read the data · How we check it
Most of Peoria gets its water from City of Peoria. Parts of the city are served by 3 smaller systems: Sunrise Water Company (6,500 people), EPCOR – Tierra del Rio (4,868 people), Kohala Ranch Water Company (850 people). Your water bill names your system.
Buys water from Sunrise Water Company, EPCOR – Sun City. Treated water bought from another system can carry that system's contaminants.
Summary
No federal limits exceeded in EPA data.
- PFAS
- Detected, below limit3 of 29 PFAS found at least once. All averages below the federal limits.
- Lithium
- Above screening levelHighest result 162 ppb. EPA uses 10 ppb to decide what to study further. It is not a health limit, and there is no federal limit for lithium. About 1 in 4 systems tested were above it.
- Lead
- Below action level0 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period Jan 2026 – now, still in progress (results reported so far). Your home's pipes can make yours higher.
- Violations
- Resolved1 health-based violation since 2016, most recently Oct 2016. One required an urgent public notice within 24 hours (the kind behind boil-water notices), most recently Oct 2016. What to do if you get a notice.
- Built before 1986, or not sure what your service line is made of? Check your service line and test your tap. Utility data can't show your pipes.
- Got a boil-water or do-not-drink notice? What each notice means and what to do.
- Pregnant, or mixing baby formula with tap water? Nitrate is most harmful to babies under 6 months, and boiling concentrates it. Consider bottled water or a filter certified for nitrate for formula, and ask your doctor. Health effects.
- Want to reduce what was found? Filters for these results.
- Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
- Read City of Peoria's annual water quality report (Consumer Confidence Report). It lists every regulated contaminant tested and is usually on the utility's website or mailed with your bill, and you can also request it at (623) 773-8453. EPA: how to find it.
PFAS (“forever chemicals”)
EPA UCMR 5: 17 entry points tested Nov 2024 to Dec 2025. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.
| Contaminant | Highest average |
|---|---|
| PFOA One sample above limit Limit 4 ppt | 2.8 ppt 70% of the limit |
| PFOS Not detected Limit 4 ppt | – |
| PFHxS Detected, below limit Limit 10 ppt | 1.85 ppt 19% of the limit |
| PFNA Not detected Limit 10 ppt | – |
| HFPO-DA (GenX) Not detected Limit 10 ppt | – |
| Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit) Detected, below limit Limit 1 | 0.19 |
| PFBS Detected, below limit Guideline 2,000 ppt | 12.6 ppt |
| PFBA Not detected Guideline 6,000 ppt | – |
| PFHxA Not detected Guideline 3,000 ppt | – |
29 PFAS tested, 3 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.
Lithium
Detected in 36 of 36 samples. Highest result 162 ppb. EPA's non-enforceable screening level is 10 ppb. Above screening level The screening level is how EPA decides what to study further, not a health limit. There is no federal limit for lithium and no filter is certified to remove it. About lithium.
Lead and copper
Latest 90th percentile: 0 ppb lead (Jan 2026 – now (in progress)). Below action level
| Monitoring period | Lead (90th pct.) |
|---|---|
| Jan 2026 – now (in progress) | 0 ppb |
| Jan 2025 – Dec 2025 | 0 ppb |
| Jan 2024 – Dec 2024 | 0 ppb |
Earlier results (9)
| Jan 2023 – Dec 2023 | 0 ppb |
| Jan 2022 – Jun 2022 | 0 ppb |
| Jul 2021 – Dec 2021 | 0 ppb |
| Jan 2019 – Dec 2021 | 0 ppb |
| Jan 2017 – Dec 2019 | 0 ppb |
| Jan 2016 – Dec 2018 | 0 ppb |
| Jan 2014 – Dec 2016 | 0 ppb |
| Jan 2013 – Dec 2015 | 1.6 ppb |
| Jan 2011 – Dec 2013 | 1.6 ppb |
Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.
Violations
| When | What happened |
|---|---|
| Oct 2016 | The running annual average for Nitrate was above the legal limit. Urgent public notice required What that means EPA record: Nitrate · Maximum Contaminant Level Violation, Average · measured 11 mg/l (limit 10 mg/L) Resolved |
1 unresolved monitoring or reporting violation: Lead and Copper Rule.
Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.
Earlier EPA testing (2013–2020)
| Contaminant | Highest | Guideline |
|---|---|---|
| Manganese | 1.6 ppb | 300 ppb |
| Chlorate | 20 ppb | 210 ppb |
| Strontium | 1.2 ppm | 1.5 ppm |
| Chromium-6 | 36 ppb | – |
| Molybdenum | 6.3 ppb | 40 ppb |
| Vanadium | 30 ppb | 21 ppb |
| 1,4-Dioxane | 0.084 ppb | 0.35 ppb |
Where it serves
Peoria
ZIP codes the system reported serving: 85085, 85345, 85381, 85382, 85383
Nearby utilities
- EPCOR – Agua Fria Surprise · 11 mi
- City of Glendale Glendale · 19 mi
- City of Phoenix Phoenix · 19 mi
- Liberty Water Lpsco Litchfield Park · 20 mi · PFAS above limit
- USAF Luke Air Force Base Litchfield Park · 20 mi · PFAS above limit
- City of Scottsdale Scottsdale · 27 mi
Questions
Is Peoria tap water safe to drink?
Most of Peoria gets its water from City of Peoria. City of Peoria had 1 health-based violation since 2016, all since resolved. EPA testing found no PFAS above the federal limits. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.
Does Peoria water have PFAS?
Yes. EPA's 2023–2025 testing of City of Peoria found 3 PFAS at least once. None of the averages were above the federal limits.
What is the lead level in Peoria water?
The most recent 90th-percentile lead result for City of Peoria is 0 ppb, for the monitoring period that began Jan 2026 (still in progress). The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.
Check these numbers yourself
Every figure on this page comes from public EPA records. You don't have to take our word for it:
- EPA's own report for AZ0407096: violations, enforcement and inspections, straight from EPA.
- EPA UCMR 5 data: the PFAS and lithium results (search the file for PWSID AZ0407096).
- EPA SDWIS download: the lead results, population and violation records we use.
- The utility's annual water quality report (Consumer Confidence Report): ask City of Peoria at (623) 773-8453, or see EPA's guide to finding it.
Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.