Is Webster, TX tap water safe?
The short answer
1 of the 6 utilities serving Webster has 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 Houston.
City of Houston, 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 33.9 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 Webster’s ZIP codes, from EPA’s estimates.
- Open report
City of Houston
Texas · serves 3 million people · about 5,500 in Webster
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 33.9 ppb, above EPA’s health benchmark.
1 health-based violation since 2016
- Open report
City of Webster
Texas · serves 13,710 people · about 3,600 in Webster
1 result above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 6.2 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Harris County MUD 55 Heritage Park
Texas · serves 16,392 people · about 1,900 in Webster
1 result above the health goal. The worst: Lead at 4.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Clear Lake City Water Authority
Texas · serves 89,702 people · about 1,200 in Webster
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 6.7 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
City of Nassau Bay
Texas · serves 5,347 people · about 450 in Webster
1 result above the health goal. The worst: Lead at 5.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
City of League City
Texas · serves 149,557 people · about 370 in Webster
1 result above EPA’s new limit, which takes effect in 2029, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
MUD stands for municipal utility district, a local water and sewer district common in Texas.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Houston’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 Webster
The 3 labs Texas certifies closest to Webster, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
A & B Environmental Services, Inc.
Houston, TX · about 17 miles
Certified for bacteria, lead and copper
City of Houston Health Department, Bureau of Laboratory Services
Houston, TX · about 20 miles
Certified for bacteria
Eurofins Xenco, LLC -Houston
Stafford, TX · about 28 miles
Certified for 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 Webster: 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 Webster
Other towns in Harris County with a page of their own.
What to do next
- Read City of Houston’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