Is Kennedy, CA tap water safe?
The short answer
1 of the 2 utilities serving Kennedy 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 Stockton.
California Water Service - Stockton, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 5.2 ppt, above EPA’s new limit, which takes effect in 2029.
The water from California Water Service - Stockton is soft to very hard depending on the source, 47 to 380 mg/L (2.7 to 22.2 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 Kennedy’s ZIP codes, from EPA’s estimates.
- Open report
California Water Service - Stockton
California · serves 182,775 people · about 2,600 in Kennedy
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 5.2 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft to very hard depending on the source, 47 to 380 mg/L (2.7 to 22.2 grains per gallon).
No health-based violations since 2016
- Open report
City of Stockton
California · serves 192,702 people · about 120 in Kennedy
1 result above the legal limit, 2 results above EPA’s new limit, which takes effect in 2029 and 3 results above the health goal. The worst: Total trihalomethanes (TTHM) at 55.7 ppb, above the legal limit. Hardness: soft to very hard depending on the source, 17 to 349 mg/L (1 to 20.4 grains per gallon).
3 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 California Water Service - Stockton’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, 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, 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, Arsenic
Water testing near Kennedy
The 3 labs California certifies closest to Kennedy, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
San Joaquin County Public Health Laboratory
Stockton, CA · about 4 miles
Certified for bacteria
Precision Enviro-Tech
Stockton, CA · about 4 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Fruit Growers Laboratory, Inc.
Stockton, CA · about 6 miles
Certified for bacteria
Which ZIP codes are in Kennedy: 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 Kennedy
Other towns in San Joaquin County with a page of their own.
What to do next
- Read California Water Service - Stockton’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