Is Glendale, AZ tap water safe?
The short answer
3 of the 6 utilities serving Glendale have 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 Phoenix, Epcor - Agua Fria and USAF Luke Air Force Base.
City of Glendale, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 117 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 Glendale’s ZIP codes, from EPA’s estimates.
- Open report
City of Glendale
Arizona · serves 234,766 people · about 204,100 in Glendale
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 117 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
City of Phoenix
Arizona · serves 1.7 million people · about 33,500 in Glendale
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
Valley Utilities Water Company Glendale
Arizona · serves 6,003 people · about 1,900 in Glendale
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 130 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Epcor - Agua Fria
Arizona · serves 128,040 people · about 1,400 in Glendale
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 95.7 ppb, above EPA’s health benchmark.
2 health-based violations since 2016
- Open report
USAF Luke Air Force Base
Arizona · serves 8,440 people · about 1,400 in Glendale
1 result above the legal limit, 2 results above EPA’s new limit, which takes effect in 2029, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Total trihalomethanes (TTHM) at 72.2 ppb, above the legal limit.
3 health-based violations since 2016
- Open report
Olive Avenue HOA
Arizona · serves 25 people · under 100 in Glendale
1 result above the health goal. The worst: Arsenic at 6.6 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 City of Glendale’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, Lead
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, Lead
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, Lead
Water testing near Glendale
The 3 labs Arizona certifies closest to Glendale, 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 9 miles
Motzz Laboratory, Inc.
Phoenix, AZ · about 9 miles
Alliance Technical Group, LLC – Phoenix
Phoenix, AZ · about 9 miles
Which ZIP codes are in Glendale: 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 Glendale
Other towns in Maricopa County with a page of their own.
What to do next
- Read City of Glendale’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