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CheckYourWater

PFAS Testing Results

Texas

PFAS testing results for 1,152 water systems serving 29,377,475 residents.

Systems tested

1,152

53.0% had PFAS detections

Limits exceeded

102

8.9% of systems

Population affected

8.4M

served by systems over federal limits

Most common compound

11Cl-PF3OUdS

detected in 116 systems

Grade distribution

Every water system gets a letter grade based on how its worst detected PFAS compound compares to the federal Maximum Contaminant Level. Lower grades mean higher contamination.

A — 541 systems (47.0%)
B — 281 systems (24.4%)
C — 227 systems (19.7%)
D — 99 systems (8.6%)
F — 4 systems (0.3%)

How grades are calculated →

Communities exceeding federal limits

The water systems in Texas where at least one PFAS compound exceeds the EPA Maximum Contaminant Level, sorted worst first.

System nameCityGradeWorst compoundTimes over limitPopulation
TOWN OF ANTHONYANTHONY
PFOS8.3x5.6K
CITY OF ABILENEABILENE
PFOS6.1x125K
POTOSI WSCABILENE
PFOS5.1x7.4K
CITY OF GRAND PRAIRIEGRAND PRAIRIE
PFOS5.0x202K
HAWLEY WSCHAWLEY
PFOS4.8x7.8K
DYESS AIR FORCE BASEDYESS AFB
PFOS4.7x7.2K
CITY OF BOERNEBOERNE
PFOS4.2x25K
CITY OF TYETYE
PFOS4.1x1.2K
EULA WSCCLYDE
PFOS3.8x3.9K
439 WSCBELTON
PFOS3.4x7.8K

Resources for taking action are available in our community toolkit.

What Texas is doing about PFAS

As of April 2026, Texas has not adopted state-level PFAS drinking water standards beyond the federal EPA limits finalized in April 2024. The Texas Commission on Environmental Quality has coordinated federal UCMR 5 sampling. State records show contamination has been identified near several former and active military airfields in Texas, including Joint Base San Antonio and the former Naval Air Station Fort Worth Joint Reserve Base.

The Texas Attorney General has joined some multistate PFAS-related litigation. Public water systems in Texas are subject to the federal compliance timeline requiring initial monitoring by 2027 and treatment installation by 2029.

Based on Texas Commission on Environmental Quality publications and federal court records.

All 1,152 tested water systems in Texas

Sorted from lowest grade to highest. Click any system name for the full report. Filter by city or name with the search box below.

Showing 50 of 1,152 systems

GradeSystem nameCityWorst compoundvs. EPA limitPopulation
TOWN OF ANTHONYANTHONYPFOS8.3× the federal limit5.6K
CITY OF ABILENEABILENEPFOS6.1× the federal limit125K
POTOSI WSCABILENEPFOS5.1× the federal limit7.4K
CITY OF GRAND PRAIRIEGRAND PRAIRIEPFOS5.0× the federal limit202K
HAWLEY WSCHAWLEYPFOS4.8× the federal limit7.8K
DYESS AIR FORCE BASEDYESS AFBPFOS4.7× the federal limit7.2K
CITY OF BOERNEBOERNEPFOS4.2× the federal limit25K
CITY OF TYETYEPFOS4.1× the federal limit1.2K
EULA WSCCLYDEPFOS3.8× the federal limit3.9K
439 WSCBELTONPFOS3.4× the federal limit7.8K
CITY OF PFLUGERVILLEPFLUGERVILLEPFOS3.0× the federal limit63K
CITY OF CLYDECLYDEPFOS2.9× the federal limit3.8K
SPENCER ROAD PUDHOUSTONPFOS2.4× the federal limit5.6K
CITY OF TERRELLTERRELLPFOS2.4× the federal limit18K
TANGLEWOOD ON TEXOMAAUSTINPFHxS2.2× the federal limit4.3K
CITY OF DUBLINDUBLINPFOS2.1× the federal limit3.4K
CITY OF HUNTSVILLEHUNTSVILLEPFOS1.8× the federal limit49K
SOUTH TAWAKONI WSCWILLS POINTPFOS1.8× the federal limit4.7K
CITY OF POINTPOINTPFOS1.6× the federal limit3.6K
MANVILLE WSCCOUPLANDPFOS1.6× the federal limit40K
EL PASO WATER UTILITIES PUBLIC SERVICE BEL PASOPFOS1.6× the federal limit747K
BROWNSVILLE PUBLIC UTILITIES BOARDBROWNSVILLEPFOS1.6× the federal limit201K
MOUNTAIN PEAK SUDMIDLOTHIANPFOS1.6× the federal limit24K
WINDERMERE COMMUNITYAUSTINPFOS1.5× the federal limit21K
CITY OF DONNADONNAPFOS1.5× the federal limit16K
CITY OF LIVINGSTON, TXLIVINGSTONPFOS1.5× the federal limit15K
CITY OF HALTOM CITYHALTOM CITYPFOS1.5× the federal limit46K
CITY OF FORT WORTHFORT WORTHPFHxS1.5× the federal limit956K
CITY OF PORT LAVACAPORT LAVACAPFOA1.5× the federal limit12K
CITY OF GREENVILLE, TXGREENVILLEPFOS1.5× the federal limit33K
WEST BELL COUNTY WSCKILLEENPFOS1.5× the federal limit4.7K
CASH SUDGREENVILLEPFOS1.5× the federal limit26K
CLEAR LAKE CITY WATER AUTHORITYHOUSTONPFOS1.4× the federal limit90K
HARRIS COUNTY WCID 1HIGHLANDSPFOS1.4× the federal limit7.5K
TRAVIS COUNTY WCID 10WEST LAKE HILLSPFOS1.4× the federal limit9.2K
CITY OF BAYTOWNBAYTOWNPFOS1.4× the federal limit86K
SHARYLAND WSCMISSIONPFOS1.4× the federal limit69K
EAST RIO HONDO WSCRIO HONDOPFOA1.4× the federal limit25K
COLLEGE MOUND SUDTERRELLPFOS1.4× the federal limit13K
JONAH WATER SUDHUTTOPFOS1.3× the federal limit30K
CITY OF WESLACOWESLACOPFOS1.3× the federal limit40K
CITY OF WEBSTERWEBSTERPFOS1.3× the federal limit14K
CITY OF SEAGOVILLESEAGOVILLEPFOS1.3× the federal limit20K
CITY OF COCKRELL HILLDALLASPFOA1.3× the federal limit3.8K
MACBEE SUDWILLS POINTPFOS1.3× the federal limit7.5K
GBRA CALHOUN COUNTY RURAL WATER SYSTEMCYPRESSPFOS1.3× the federal limit4.5K
CITY OF UNIVERSITY PARKDALLASPFOA1.2× the federal limit25K
CITY OF COLLEYVILLECOLLEYVILLEPFOS1.2× the federal limit26K
CITY OF TEMPLETEMPLEPFOS1.2× the federal limit95K
CITY OF KELLERKELLERPFOS1.2× the federal limit46K

Check your water system

Enter your zip code to see the PFAS results for the water system that serves your home.

Where this data comes from

  • EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5)
  • Testing period: 2023 to 2026
  • Federal limits: EPA Maximum Contaminant Levels finalized April 2024
  • Read the full methodology