ZIP Code 77541
Moderate11
PFAS Detected
0
Above EPA Limits
3
Water Systems
N/A
Highest % of MCL
CITY OF FREEPORT
TX0200005 ModerateWater Type
Surface Water
PFAS Detected
5
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 17600.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 151.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 12.70ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.40ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.20ppt | No federal limit | — | Unregulated |
VILLAGE OF SURFSIDE BEACH
TX0200037 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 44800.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 4.60ppt | No federal limit | — | Unregulated |
DOW TEXAS FREEPORT SALT DOME 8
TX0200534 Low LevelWater Type
Groundwater
PFAS Detected
4
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 38000.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 48.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 18.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 4.70ppt | No federal limit | — | Unregulated |
Note: ZIP code 77541 is served by 3 separate water utilities.
Results above show data for each system independently.
Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.
UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.
Detection values represent the highest single-sample result measured at entry points to the distribution system.