Is Gilbert, AZ tap water safe?
The short answer
2 of the 2 utilities serving Gilbert have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Town of Gilbert and Sontel Water Coop.
Town of Gilbert, which serves the most people here, has 2 results 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: PFOS at 9.8 ppt, above EPA’s new limit, which takes effect in 2029.
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 Gilbert’s ZIP codes, from EPA’s estimates.
- Open report
Town of Gilbert
Arizona · serves 247,600 people · nearly all in Gilbert
2 results 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: PFOS at 9.8 ppt, above EPA’s new limit, which takes effect in 2029.
3 health-based violations since 2016
- Open report
Sontel Water Coop
Arizona · serves 80 people · nearly all in Gilbert
2 results above the health goal. The worst: Arsenic at 2.9 ppb, above the health goal.
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 Town of Gilbert’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: PFOS, PFOA, 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: PFOS, PFOA, 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: PFOS, PFOA, Arsenic
Water testing near Gilbert
The 3 labs Arizona certifies closest to Gilbert, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Statewide Laboratory
Mesa, AZ · about 7 miles
Radiation Safety Engineering, Inc.
Chandler, AZ · about 8 miles
AnalysisNow! Inc.
Chandler, AZ · about 8 miles
Which ZIP codes are in Gilbert: 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 Gilbert
Other towns in Maricopa County with a page of their own.
What to do next
- Read Town of Gilbert’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water