Is Leming, TX tap water safe?
The short answer
Neither of the 2 utilities serving Leming has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records.
McCoy WSC, 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 62.2 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 Leming’s ZIP codes, from EPA’s estimates.
- Open report
McCoy WSC
Texas · serves 9,621 people · about 180 in Leming
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 62.2 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
City of Pleasanton
Texas · serves 17,985 people · about 130 in Leming
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 106 ppb, above EPA’s health benchmark.
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 McCoy WSC’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, Lead
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, Lead
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, Lead
Water testing near Leming
The 3 labs Texas certifies closest to Leming, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
San Antonio Metropolitan Health District
San Antonio, TX · about 22 miles
Certified for bacteria
San Antonio Testing Laboratory, LLC
San Antonio, TX · about 29 miles
Certified for bacteria, lead and copper
Alamo Analytical Laboratories, Ltd.
San Antonio, TX · about 37 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 Leming: 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 Leming
Other towns in Atascosa County with a page of their own.
What to do next
- Read McCoy WSC’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