CheckPFAS

ZIP Code 77379

Moderate
Moderate PFAS Risk Level
39
PFAS Detected
0
Above EPA Limits
13
Water Systems
N/A
Highest % of MCL
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HARRIS COUNTY WCID 114

TX1010317 Low Level
Water Type
MX
PFAS Detected
3
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
6.10pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
3.60pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
3.20pptNo federal limit—Unregulated

MEADOWHILL REGIONAL MUD

TX1010387 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
43300.00pptNo federal limit—Unregulated

CYPRESS KLEIN UTILITY DISTRICT WIMBLETON

TX1010431 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
40700.00pptNo federal limit—Unregulated

CYPRESSWOOD UTILITY DISTRICT

TX1010432 Low Level
Water Type
Surface Water
PFAS Detected
4
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
12600.00pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
9.10pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
5.20pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
3.60pptNo federal limit—Unregulated

HARRIS COUNTY WCID 119

TX1010509 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
67500.00pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
12.60pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
8.70pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
5.40pptNo federal limit—Unregulated
PFBS
Perfluorobutane sulfonic acid
4.30pptNo federal limit—Unregulated

HARRIS COUNTY MUD 24

TX1010572 Low Level
Water Type
MX
PFAS Detected
4
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
41500.00pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
6.70pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
4.50pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
3.40pptNo federal limit—Unregulated

CYPRESS FOREST PUD

TX1010919 Low Level
Water Type
Groundwater
PFAS Detected
3
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
5.20pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
5.10pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
3.80pptNo federal limit—Unregulated

BRIDGESTONE MUD

TX1011550 Low Level
Water Type
MX
PFAS Detected
2
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
18700.00pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
3.00pptNo federal limit—Unregulated

LOUETTA NORTH PUD

TX1011870 Low Level
Water Type
Surface Water
PFAS Detected
3
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
8.50pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
6.40pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
4.40pptNo federal limit—Unregulated

BILMA PUD

TX1011872 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
41000.00pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
8.10pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
6.40pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
5.00pptNo federal limit—Unregulated
PFBS
Perfluorobutane sulfonic acid
3.10pptNo federal limit—Unregulated

NORTHWEST HARRIS COUNTY MUD 32

TX1013034 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
37100.00pptNo federal limit—Unregulated

HARRIS COUNTY MUD 367

TX1013040 Low Level
Water Type
Surface Water
PFAS Detected
3
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
8.00pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
6.20pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
4.70pptNo federal limit—Unregulated

HARRIS COUNTY MUD 383

TX1013213 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
47600.00pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
5.50pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
4.20pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
3.60pptNo federal limit—Unregulated
Note: ZIP code 77379 is served by 13 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 →