Is Live Oak, TX 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 Texas’s records.
San Antonio Water System, 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 25.5 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 Live Oak’s ZIP codes, from EPA’s estimates.
- Open report
San Antonio Water System
Texas · serves 2.6 million people · about 13,000 in Live Oak
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 25.5 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
City of Live Oak
Texas · serves 8,724 people · about 3,100 in Live Oak
1 result above the health goal. The worst: Lead at 1.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
City of Universal City
Texas · serves 20,119 people · about 530 in Live Oak
1 result above the health goal. The worst: Lead at 0.5 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 San Antonio Water System’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Live Oak
The 3 labs Texas certifies closest to Live Oak, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Wallgren Environmental Services dba Pollution Control Services
Universal City, TX · about 2 miles
Certified for bacteria, lead and copper
Alamo Analytical Laboratories, Ltd.
San Antonio, TX · about 10 miles
Certified for lead and copper
San Antonio Testing Laboratory, LLC
San Antonio, TX · about 15 miles
Certified for bacteria, lead and copper
Texas Well Owner Network, Texas A&M AgriLife Extension: Well Informed screening events, where well owners bring in water samples to be screened for common contaminants, followed by an hour-long session explaining the results. Upcoming events are on the network's calendar. Trainings, Texas Well Owner Network.
All 80 certified labs for TexasWhich 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: TCEQ, drinking water laboratories approved for public water system samples; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Live Oak
Other towns in Bexar County with a page of their own.
What to do next
- Read San Antonio Water System’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