Is Live Oak, CA tap water safe?
The short answer
None of the 3 utilities serving Live Oak has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records.
Santa Cruz Water Department, 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 54 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
The water from Santa Cruz Water Department is hard to very hard depending on the source, 121 to 327 mg/L (7.1 to 19.1 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 Live Oak’s ZIP codes, from EPA’s estimates.
- Open report
Santa Cruz Water Department
California · serves 94,626 people · about 13,300 in Live Oak
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 54 ppb, above EPA’s health benchmark. Hardness: hard to very hard depending on the source, 121 to 327 mg/L (7.1 to 19.1 grains per gallon).
No health-based violations since 2016
- Open report
Soquel Creek Water District
California · serves 40,962 people · about 260 in Live Oak
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 89.8 ppb, above EPA’s health benchmark. Hardness: moderately hard to very hard depending on the source, 86 to 395 mg/L (5 to 23.1 grains per gallon).
No health-based violations since 2016
- Open report
City of Live Oak
California · serves 9,687 people · about 240 in Live Oak
1 result above the limit’s level with no violation recorded and 3 results above the health goal. The worst: Arsenic at 21.5 ppb, above the limit’s level, no violation. Hardness: moderately hard to very hard depending on the source, 74 to 274 mg/L (4.3 to 16 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 Santa Cruz Water Department’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 Live Oak
The 3 labs California certifies closest to Live Oak, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Alpha Analytical Laboratories, Inc.
Livermore, CA · about 3 miles
Certified for bacteria
SGS North America
Hayward, CA · about 14 miles
Certified for bacteria
EMSL Analytical Inc.
San Leandro, CA · about 15 miles
Certified for asbestos
Which ZIP codes are in Live Oak: 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 Live Oak
Other towns in Santa Cruz County with a page of their own.
What to do next
- Read Santa Cruz Water Department’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