Is Fullerton, CA tap water safe?
The short answer
1 of the 2 utilities serving Fullerton has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: City of Fullerton.
City of Fullerton, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 13.3 ppt, above EPA’s new limit, which takes effect in 2029.
The water from City of Fullerton is very hard, typically 212 mg/L (12.4 grains per gallon). How California’s water compares.
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 Fullerton’s ZIP codes, from EPA’s estimates.
- Open report
City of Fullerton
California · serves 140,054 people · nearly all in Fullerton
2 results above EPA’s new limit, which takes effect in 2029, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 13.3 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: very hard, typically 212 mg/L (12.4 grains per gallon).
1 health-based violation since 2016
- Open report
Page Avenue Mutual Water Company
California · serves 119 people · nearly all in Fullerton
2 results above the health goal. The worst: Uranium at 23.4 ppb, above the health goal. Hardness: very hard, 519 mg/L (30.3 grains per gallon).
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 Fullerton’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, 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: PFOS, PFOA, 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: PFOS, PFOA, Arsenic, Lead
Water testing near Fullerton
The 3 labs California certifies closest to Fullerton, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
AIH Laboratory, Inc.
Anaheim, CA · about 4 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
Onterris Laboratories, LLC - Anaheim
Anaheim, CA · about 6 miles
Certified for organic chemicals, disinfection byproducts
Envirocheck, Inc.
Orange, CA · about 7 miles
Certified for lead and copper
Which ZIP codes are in Fullerton: 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: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Fullerton
Other towns in Orange County with a page of their own.
What to do next
- Read City of Fullerton’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