Is St. Paul, TX tap water safe?
The short answer
1 of the 6 utilities serving St. Paul has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: Rincon WSC.
City of Wylie, which serves the most people here, has 1 result above the health goal. The worst: Lead at 1.0 ppb, above the health goal. 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 St. Paul’s ZIP codes, from EPA’s estimates.
- Open report
City of Wylie
Texas · serves 48,393 people · about 1,900 in St. Paul
1 result above the health goal. The worst: Lead at 1.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
East Fork SUD
Texas · serves 17,589 people · about 730 in St. Paul
1 result above the health goal. The worst: Lead at 1.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Wylie Northeast SUD
Texas · serves 11,430 people · about 310 in St. Paul
1 result above the health goal. The worst: Lead at 2.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
City of Sinton
Texas · serves 5,505 people · about 100 in St. Paul
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 129 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Seis Lagos Utility District
Texas · serves 2,037 people · under 100 in St. Paul
1 result above the health goal. The worst: Lead at 0.95 ppb, above the health goal.
No health-based violations since 2016
- Open report
Rincon WSC
Texas · serves 5,034 people · under 100 in St. Paul
1 result above the legal limit, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Total trihalomethanes (TTHM) at 87 ppb, above the legal limit.
3 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 Wylie’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 St. Paul
The 3 labs Texas certifies closest to St. Paul, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Aqua-Tech Laboratories, Inc.
Bryan, TX · about 34 miles
Certified for bacteria, lead and copper
Integrity Testing, Inc.
Austin, TX · about 44 miles
Certified for lead and copper
Texas Department of State Health Services Laboratory Services Section
Austin, TX · about 45 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 St. Paul: 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 St. Paul
Towns nearby with a page of their own.
What to do next
- Read City of Wylie’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water