CheckPFAS

ZIP Code 77541

Moderate
Moderate PFAS Risk Level
11
PFAS Detected
0
Above EPA Limits
3
Water Systems
N/A
Highest % of MCL

CITY OF FREEPORT

TX0200005 Moderate
Water Type
Surface Water
PFAS Detected
5
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
17600.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
151.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
12.70pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
5.40pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
3.20pptNo federal limitUnregulated

VILLAGE OF SURFSIDE BEACH

TX0200037 Low Level
Water Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
44800.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
4.60pptNo federal limitUnregulated

DOW TEXAS FREEPORT SALT DOME 8

TX0200534 Low Level
Water Type
Groundwater
PFAS Detected
4
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
38000.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
48.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
18.00pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
4.70pptNo federal limitUnregulated
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.

View raw EPA data →