Texas-first MVP · Tap Water Texas · EPA SDWA 2026Q3
What’s in Texas tap water? Start with your city or utility.
We turn hard-to-read EPA Safe Drinking Water Act records into city and utility pages with plain-English summaries, recent violation tables, lead/copper sample highlights, and contaminant guides. Private wells are not covered.
Featured cities
Austin
248 utilities · ~1,731,382 pop. served (sum of listed systems)
100 health-based violation records indexed
Manor
1 utilities · ~19,620 pop. served (sum of listed systems)
No health-based records in indexed recent slice
Houston
560 utilities · ~5,913,506 pop. served (sum of listed systems)
62 health-based violation records indexed
Dallas
21 utilities · ~1,409,203 pop. served (sum of listed systems)
3 health-based violation records indexed
San Antonio
5 utilities · ~2,694,228 pop. served (sum of listed systems)
2 health-based violation records indexed
Fort Worth
2 utilities · ~956,582 pop. served (sum of listed systems)
1 health-based violation records indexed
Largest cities in this directory
- Houston · 560 systems
- San Antonio · 5 systems
- Austin · 248 systems
- Dallas · 21 systems
- Fort Worth · 2 systems
- El Paso · 4 systems
- Arlington · 1 systems
- Corpus Christi · 2 systems
- Plano · 1 systems
- Laredo · 3 systems
- Lubbock · 2 systems
- Irving · 1 systems
- Edinburg · 2 systems
- Garland · 1 systems
- Frisco · 1 systems
- Mckinney · 2 systems
- Brownsville · 3 systems
- Mission · 4 systems
Largest utilities by population served
- CITY OF HOUSTON · 2,970,543 people
- SAN ANTONIO WATER SYSTEM · 2,643,729 people
- DALLAS WATER UTILITY · 1,356,479 people
- CITY OF AUSTIN WATER & WASTEWATER · 1,115,323 people
- CITY OF FORT WORTH · 955,900 people
- EL PASO WATER UTILITIES · 747,168 people
- CITY OF ARLINGTON · 413,955 people
- CITY OF CORPUS CHRISTI · 317,247 people
- CITY OF PLANO · 292,059 people
- LUBBOCK PUBLIC WATER SYSTEM · 266,450 people
- CITY OF IRVING · 264,546 people
- CITY OF LAREDO · 260,046 people
Quick FAQs
Is this official EPA guidance?
No. We republish and explain public EPA SDWIS/ECHO data for education. For notices, boil-water alerts, and Consumer Confidence Reports, contact your utility or state primacy agency.
Does this include private wells?
No. Private wells are generally not regulated like public community water systems. Well owners should test independently.
Where does the data come from?
U.S. EPA ECHO SDWA quarterly downloads (systems, geographic areas, violations/enforcement, lead/copper rule samples). See Methodology.