Is Laredo, TX tap water safe?
The short answer
3 of the 3 utilities serving Laredo have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: City of Laredo, Webb County Water Utilities and Webb County Water Dispenser.
City of Laredo, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 34.3 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 Laredo’s ZIP codes, from EPA’s estimates.
- Open report
City of Laredo
Texas · serves 260,046 people · about 98,900 in Laredo
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 34.3 ppb, above EPA’s health benchmark.
7 health-based violations since 2016
- Open report
Webb County Water Utilities
Texas · serves 8,358 people · about 930 in Laredo
2 results above the legal limit, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Total trihalomethanes (TTHM) at 98.1 ppb, above the legal limit.
45 health-based violations since 2016
- Open report
Webb County Water Dispenser
Texas · serves 3,362 people · based in Laredo
2 results above the legal limit and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 70.1 ppb, above the legal limit.
11 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 Laredo’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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: Lead, 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: Lead, Arsenic
Water testing near Laredo
The lab Texas certifies closest to Laredo, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
City of Laredo Health Department Lab
Laredo, TX · about 5 miles
Certified for bacteria
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 Laredo: 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 Laredo
Other towns in Webb County with a page of their own.
What to do next
- Read City of Laredo’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