Is Sun City, AZ tap water safe?
The short answer
1 of the 3 utilities serving Sun City has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: City of Peoria.
Epcor - Sun City, which serves the most people here, has 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 46.2 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Sun City’s ZIP codes, from EPA’s estimates.
- Open report
Epcor - Sun City
Arizona · serves 38,016 people · about 32,600 in Sun City
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 46.2 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Epcor - North East Agua Fria
Arizona · serves 14,723 people · about 1,800 in Sun City
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 37.2 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
City of Peoria
Arizona · serves 187,676 people · about 1,100 in Sun City
1 result above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 5.6 ppt, above EPA’s new limit, which takes effect in 2029.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Epcor - Sun City’s water, which serves the most people here. Another utility’s report names what handles its own results.
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Water testing near Sun City
The 3 labs Arizona certifies closest to Sun City, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Legend Technical Services of Arizona, Inc. DBA Legend Analytical
Phoenix, AZ · about 13 miles
Motzz Laboratory, Inc.
Phoenix, AZ · about 13 miles
Alliance Technical Group, LLC – Phoenix
Phoenix, AZ · about 13 miles
Which ZIP codes are in Sun City: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Arizona Department of Health Services, Arizona certified commercial drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Sun City
Other towns in Maricopa County with a page of their own.
What to do next
- Read Epcor - Sun City’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water