Is Anthem, AZ tap water safe?
The short answer
3 of the 5 utilities serving Anthem have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Epcor - Anthem, City of Phoenix and Epcor - Tierra del Rio.
Epcor - Anthem, which serves the most people here, has 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 72.3 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 Anthem’s ZIP codes, from EPA’s estimates.
- Open report
Epcor - Anthem
Arizona · serves 23,826 people · about 3,000 in Anthem
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 72.3 ppb, above EPA’s health benchmark.
1 health-based violation since 2016
- Open report
City of Phoenix
Arizona · serves 1.7 million people · about 1,600 in Anthem
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 160 ppb, above EPA’s health benchmark. Hardness: hard to very hard, 172 to 302 mg/L (10.1 to 17.7 grains per gallon).
1 health-based violation since 2016
- Open report
Desert Hills Water
Arizona · serves 4,220 people · about 660 in Anthem
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 46.5 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Epcor - Tierra del Rio
Arizona · serves 4,868 people · about 110 in Anthem
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 26.7 ppb, above EPA’s health benchmark.
2 health-based violations since 2016
- Open report
Pioneer Rv Resort
Arizona · serves 583 people · under 100 in Anthem
2 results above the health goal. The worst: Lead at 9.3 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Epcor - Anthem’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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 Anthem
The 3 labs Arizona certifies closest to Anthem, 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 19 miles
Motzz Laboratory, Inc.
Phoenix, AZ · about 19 miles
Alliance Technical Group, LLC – Phoenix
Phoenix, AZ · about 19 miles
ZIP codes in Anthem
Which ZIP codes are in Anthem: 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 Anthem
Other towns in Maricopa County with a page of their own.
What to do next
- Read Epcor - Anthem’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