Texas tap water quality
4,758 community water systems serving 33.2 million people.
Data: U.S. EPA · How we read the data · How we check it
28
systems with PFAS above a federal limit
2.8 million
people served by them
1,130
systems EPA tested for PFAS
13
systems above the lead action level
PFAS: EPA's 2023–2025 testing. Lead: results from the last five years. 25 more systems have no recent lead results in EPA's database.
Water systems with PFAS above the federal limit
Based on EPA's UCMR 5 results (2023–2025) compared to the April 2024 limits, the way EPA compares them. Systems have until 2029 to comply. Largest first.
- City of Fort Worth955,900 people · Surface water · TexasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit · 1 health-based violation since 2016
- El Paso Water Utilities747,168 people · Surface water · TexasPFOS above limitAlso: PFHxS detected · Lithium above screening level
- City of Grand Prairie201,843 people · Purchased surface water · TexasPFOS above limitAlso: PFOA detected · PFHxS detected
- Brownsville Public Utilities Board201,249 people · Surface water · TexasPFOS above limitAlso: PFOA detected · PFHxS detected · Lithium above screening level
- City of Abilene130,501 people · Surface water · TexasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit · 1 health-based violation since 2016
- Clear Lake City Water Authority89,702 people · Purchased surface water · TexasPFOS above limitAlso: PFOA detected · PFHxS detected
- City of Baytown86,004 people · Purchased surface water · TexasPFOS above limitAlso: PFHxS detected
- City of Pflugerville63,464 people · Surface water · TexasPFOA above limitAlso: PFOS above limit · PFNA above limit · PFAS Hazard Index above limit · 14 health-based violations since 2016
- City of Huntsville48,522 people · Purchased surface water · TexasPFOS above limitAlso: PFOA detected · PFHxS detected · Lithium above screening level
- City of Haltom City47,014 people · Purchased surface water · TexasPFOS above limitAlso: PFHxS above limit · PFAS Hazard Index above limit · PFOA detected
- Manville Water Supply Corporation39,648 people · Purchased surface water · TexasPFOS above limitAlso: PFNA above limit · PFAS Hazard Index above limit · Total trihalomethanes (TTHM) violations
- City of Greenville33,354 people · Surface water · TexasPFOS above limitAlso: PFHxS detected
- Sjwtx Triple Peak Plant32,973 people · Surface water · TexasPFOS above limitAlso: Total trihalomethanes (TTHM) violations · PFHxS detected · Lithium above screening level
- Cash Special Utility District25,875 people · Surface water · TexasPFOS above limitAlso: PFHxS detected
- City of Boerne24,769 people · Surface water · TexasPFOS above limitAlso: PFHxS above limit · PFAS Hazard Index above limit · Total trihalomethanes (TTHM) violations
- Windermere Community Water System21,231 people · Purchased surface water · TexasPFOS above limitAlso: PFHxS detected · Lithium above screening level
- City of Terrell18,432 people · Purchased surface water · TexasPFOS above limitAlso: PFHxS detected
- City of Livingston15,199 people · Purchased surface water · TexasPFOS above limitAlso: PFOA detected · PFHxS detected
- City of Webster13,710 people · Purchased surface water · TexasPFOS above limitAlso: PFHxS detected
- Hawley Water Supply Corporation8,436 people · Purchased surface water · TexasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit
- Potosi Water Supply Corporation7,413 people · Purchased surface water · TexasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit · 5 health-based violations since 2016
- Dyess Air Force Base Water System7,183 people · Purchased surface water · TexasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit
- Town of Anthony5,555 people · Groundwater · TexasPFOA above limitAlso: PFOS above limit · Arsenic violations · PFHxS detected
- Tanglewood on Texoma Water System4,341 people · Purchased surface water · TexasPFHxS above limitAlso: PFAS Hazard Index above limit · Lithium above screening level
- Eula Water Supply Corporation3,918 people · Purchased surface water · TexasPFOS above limitAlso: Total trihalomethanes (TTHM) violations · PFOA detected · PFHxS detected
- City of Clyde3,820 people · Surface water · TexasPFOS above limitAlso: Haloacetic acids (HAA5) violations · Total trihalomethanes (TTHM) violations · PFOA detected
- City of Dublin3,388 people · Purchased surface water · TexasPFOS above limitAlso: Total trihalomethanes (TTHM) violations
- City of Tye1,176 people · Purchased surface water · TexasPFOS above limitAlso: PFOA detected · PFHxS detected · 1 health-based violation since 2016
Texas PFAS report: chart, rankings and data to download →
Largest water systems in Texas
- City of Houston3 million people · Surface water · TexasLithium above screening levelAlso: 1 health-based violation since 2016
- San Antonio Water System2.6 million people · Purchased surface water · TexasLithium above screening level
- Dallas Water Utility1.4 million people · Surface water · TexasPFOA detectedAlso: PFOS detected · PFHxS detected
- City of Austin Water & Wastewater1.1 million people · Surface water · TexasPFOS detectedAlso: PFHxS detected · 5 health-based violations since 2016
- City of Fort Worth955,900 people · Surface water · TexasPFOA above limitAlso: PFOS above limit · PFHxS above limit · PFAS Hazard Index above limit · 1 health-based violation since 2016
- El Paso Water Utilities747,168 people · Surface water · TexasPFOS above limitAlso: PFHxS detected · Lithium above screening level
- City of Arlington413,955 people · Surface water · TexasPFOS detected
- City of Corpus Christi317,247 people · Surface water · TexasLithium above screening levelAlso: 2 health-based violations since 2016
- City of Plano292,059 people · Purchased surface water · TexasNo PFAS above limits
- Lubbock Public Water System266,450 people · Surface water · TexasLithium above screening level
- City of Irving264,546 people · Purchased surface water · TexasPFOA detectedAlso: PFOS detected · PFHxS detected
- City of Laredo260,046 people · Surface water · TexasTotal trihalomethanes (TTHM) violationsAlso: Coliform bacteria violations · Lithium above screening level
- City of Garland248,822 people · Purchased surface water · TexasNo PFAS above limits
- City of Frisco231,910 people · Purchased surface water · TexasNo PFAS above limits
- City of McKinney224,043 people · Purchased surface water · TexasNo PFAS above limits
Texas cities and towns
- Abilene
- Allen
- Alvin
- Amarillo
- Anna
- Arlington
- Austin
- Balch Springs
- Baytown
- Beaumont
- Bedford
- Belton
- Brownsville
- Bryan
- Burleson
- Carrollton
- Cedar Hill
- Cedar Park
- Celina
- Cibolo
- Cleburne
- College Station
- Colleyville
- Conroe
- Converse
- Coppell
- Copperas Cove
- Corinth
- Corpus Christi
- Corsicana
- Dallas
- Deer Park
- Del Rio
- Denison
- Denton
- DeSoto
- Duncanville
- Eagle Pass
- Edinburg
- El Paso
- Ennis
- Euless
- Farmers Branch
- Fate
- Flower Mound
- Forney
- Fort Worth
- Friendswood
- Frisco
- Fulshear
- Galveston
- Garland
- Georgetown
- Grand Prairie
- Grapevine
- Greenville
- Haltom City
- Harker Heights
- Harlingen
- Houston
- Huntsville
- Hurst
- Hutto
- Irving
- Katy
- Keller
- Kerrville
- Killeen
- Kyle
- La Porte
- Lake Jackson
- Lancaster
- Laredo
- League City
- Leander
- Lewisville
- Little Elm
- Longview
- Lubbock
- Lufkin
- Mansfield
- McAllen
- McKinney
- Melissa
- Mesquite
- Midland
- Midlothian
- Mission
- Missouri City
- Nacogdoches
- New Braunfels
- North Richland Hills
- Odessa
- Paris
- Pasadena
- Pearland
- Pflugerville
- Pharr
- Plano
- Port Arthur
- Princeton
- Prosper
- Richardson
- Rockwall
- Rosenberg
- Round Rock
- Rowlett
- Royse City
- Sachse
- Saginaw
- San Angelo
- San Antonio
- San Juan
- San Marcos
- Schertz
- Seguin
- Sherman
- Socorro
- Southlake
- Sugar Land
- Temple
- Texarkana
- Texas City
- The Colony
- Tyler
- University Park
- Victoria
- Waco
- Waxahachie
- Weatherford
- Weslaco
- Wichita Falls
- Wylie
Most health-based violations since 2016
- City of Brady Water System5,371 people · Groundwater · TexasRadium (combined 226/228) violationsAlso: Gross alpha violations · Lithium above screening level
- Stormlight Mobile Home Park Water System76 people · Groundwater · TexasFluoride violationsAlso: Arsenic violations
- Valley Estates Water System68 people · Groundwater · TexasArsenic violationsAlso: Fluoride violations · Uranium violations
- Cassie Water System106 people · Groundwater under influence of surface water · TexasNitrate violation
- Tempe Water Supply Corporation 12,725 people · Groundwater · TexasArsenic violationsAlso: Gross alpha violations · Radium (combined 226/228) violations
- Millersview Doole Water Supply Corporation3,987 people · Surface water · TexasLead above action levelAlso: Total trihalomethanes (TTHM) violations · Gross alpha violations · Radium (combined 226/228) violations
- City of Nome825 people · Surface water · TexasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations
- Grassland Water Supply Corporation55 people · Groundwater · TexasArsenic violationsAlso: Nitrate violations · Fluoride violations · Total trihalomethanes (TTHM) violations
- Franklin Water Systems 3201 people · Groundwater · TexasNitrate violations
- Tri County Special Utility District5,353 people · Groundwater · TexasArsenic violationsAlso: Lithium above screening level
- Country View MHP54 people · Groundwater · TexasArsenic violationsAlso: Fluoride violations · Uranium violations · Gross alpha violations
- City of Rose City664 people · Surface water · TexasTotal trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violations · Coliform bacteria violations
- Seven Estates Water System189 people · Groundwater · TexasFluoride violations
- Forest Water Supply Corporation651 people · Groundwater · TexasHaloacetic acids (HAA5) violationsAlso: Total trihalomethanes (TTHM) violations · Coliform bacteria violation
- City of Seagraves2,417 people · Groundwater · TexasFluoride violationsAlso: Arsenic violations
All Texas utilities on this site
Every Texas system serving 50,000+ people or with PFAS above a federal limit, A to Z. Download all 4,758 systems as CSV.
- Agua Special Utility District
- Amarillo Municipal Water System
- Aqua Water Supply Corporation
- Brownsville Public Utilities Board
- Cash Special Utility District
- City of Abilene
- City of Allen
- City of Arlington
- City of Austin Water & Wastewater
- City of Baytown
- City of Beaumont Water Utility Dept
- City of Boerne
- City of Bryan
- City of Burleson
- City of Carrollton
- City of Cedar Hill
- City of Cedar Park
- City of Celina
- City of Clyde
- City of College Station
- City of Conroe
- City of Corpus Christi
- City of Denton
- City of Desoto
- City of Dublin
- City of Eagle Pass
- City of Edinburg
- City of Euless
- City of Fort Worth
- City of Frisco
- City of Galveston
- City of Garland
- City of Georgetown
- City of Grand Prairie
- City of Grapevine
- City of Greenville
- City of Haltom City
- City of Houston
- City of Houston Utility District 5 – Kingwood
- City of Huntsville
- City of Irving
- City of Killeen
- City of Kyle
- City of Laredo
- City of League City
- City of Leander
- City of Lewisville
- City of Livingston
- City of Longview
- City of Lufkin
- City of Mansfield
- City of McKinney
- City of Mesquite
- City of Midland Water Purification Plant
- City of Mission
- City of Nacogdoches
- City of North Richland Hills
- City of Odessa
- City of Pasadena
- City of Pearland
- City of Pflugerville
- City of Pharr
- City of Plano
- City of Port Arthur
- City of Richardson
- City of Rockwall
- City of Round Rock
- City of Rowlett
- City of San Angelo
- City of San Marcos
- City of Sugar Land
- City of Temple
- City of Terrell
- City of Texas City
- City of Tye
- City of Tyler
- City of Victoria
- City of Waco
- City of Waxahachie
- City of Webster
- City of Wichita Falls
- Clear Lake City Water Authority
- Dallas Water Utility
- Dyess Air Force Base Water System
- El Paso Water Utilities
- Eula Water Supply Corporation
- Green Valley Special Utility District
- Harlingen Water Works System
- Hawley Water Supply Corporation
- Johnson County Special Utility District
- Lower Valley Water District
- Lubbock Public Water System
- Manville Water Supply Corporation
- McAllen Public Utility
- Mustang Special Utility District
- New Braunfels Utilities
- North Alamo Water Supply Corporation
- Potosi Water Supply Corporation
- San Antonio Water System
- Sharyland Water Supply Corporation
- Sjwtx Triple Peak Plant
- Southern Utilities
- Tanglewood on Texoma Water System
- Texas A&m University Main Campus Water System
- Town of Anthony
- Town of Flower Mound
- Windermere Community Water System
Questions
Does Texas tap water have PFAS?
EPA tested 1,130 community water systems in Texas for 29 PFAS between 2023 and 2025. 177 had at least one regulated PFAS detected, and 28 had an entry-point average above a 2024 federal limit. Those 28 systems serve about 2.8 million people (9% of people on community water in Texas). Systems have until 2029 to meet the limits.
How many Texas water systems have violations?
1,796 systems in Texas had at least one health-based violation since 2016 (14,640 violations in total). 6,241 violations are currently listed as unaddressed.
Which Texas water systems are over the lead action level?
13 systems had a lead 90th percentile above the 15 ppb action level in their most recent results from the last five years. Another 25 systems have no lead results in EPA's database from the last five years, including 2 whose last result was above the action level. Lead depends on each home's pipes, so a test of your own tap is the only way to know your level.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.