ZIP Code 77479
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.
9
PFAS Detected
1
Above EPA Limits
2
Water Systems
103%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 103% of limit
Detected: 4.10 ppt
CITY OF SUGAR LAND
TX0790005 High RiskWater Type
MX
PFAS Detected
8
Above MCL
1
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 4.10ppt | 103% of limit
| 4 ppt | ⚠ Exceeds MCL |
6:2 FTS 6:2 Fluorotelomer sulfonic acid | 672.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 358.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 74.80ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 12.90ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.80ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.60ppt | No federal limit | — | Unregulated |
ADONA 4,8-Dioxa-3H-perfluorononanoic acid | 3.40ppt | No federal limit | — | Unregulated |
FORT BEND COUNTY MUD 129
TX0790437 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 |
|---|---|---|---|---|
PFPeA Perfluoropentanoic acid | 26.30ppt | No federal limit | — | Unregulated |
Note: ZIP code 77479 is served by 2 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.