ZIP Code 77583
High RiskPFAS above EPA limits detected
1 compound exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.
13
PFAS Detected
1
Above EPA Limits
7
Water Systems
110%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 110% of limit
Detected: 4.40 ppt
CITY OF PEARLAND
TX0200008 High RiskWater Type
Surface Water
PFAS Detected
7
Above MCL
1
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 4.40ppt | 110% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 4.10ppt | 41% of limit
| 10 ppt | Below limit |
lithium | 19700.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 66.70ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 20.20ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 6.30ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.70ppt | No federal limit | — | Unregulated |
TDCJ RAMSEY AREA
TX0200201 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 29000.00ppt | No federal limit | — | Unregulated |
SOUTHWOOD ESTATES
TX0200403 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 26000.00ppt | No federal limit | — | Unregulated |
BRAZORIA COUNTY MUD 21
TX0200610 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 41700.00ppt | No federal limit | — | Unregulated |
BRAZORIA COUNTY MUD 29
TX0200612 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 16800.00ppt | No federal limit | — | Unregulated |
BRAZORIA COUNTY MUD 31
TX0200645 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 41400.00ppt | No federal limit | — | Unregulated |
BRAZORIA COUNTY MUD 22
TX0200706 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 24300.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 77583 is served by 7 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.