ZIP Code 76537
High RiskPFAS above EPA limits detected
4 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.
24
PFAS Detected
4
Above EPA Limits
4
Water Systems
143%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 143% of limit
Detected: 5.70 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 123% of limit
Detected: 4.90 ppt
CITY OF GEORGETOWN
TX2460001 High RiskWater Type
GU
PFAS Detected
8
Above MCL
2
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 5.70ppt | 143% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 4.90ppt | 123% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 4.70ppt | 47% of limit
| 10 ppt | Below limit |
lithium | 17400.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 33.80ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 18.70ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 10.10ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 9.60ppt | No federal limit | — | Unregulated |
JARRELL SCHWERTNER WSC
TX2460011 Low LevelWater Type
Surface Water
PFAS Detected
3
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 33500.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.70ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.60ppt | No federal limit | — | Unregulated |
JONAH WATER SUD
TX2460022 High RiskWater Type
Groundwater
PFAS Detected
8
Above MCL
2
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 5.70ppt | 143% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 5.10ppt | 128% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 5.60ppt | 56% of limit
| 10 ppt | Below limit |
lithium | 38600.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 21.20ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 15.80ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 9.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 9.20ppt | No federal limit | — | Unregulated |
SONTERRA MUD
TX2460157 ModerateWater Type
Groundwater
PFAS Detected
5
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 23300.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 15.70ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 7.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 6.90ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 6.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 76537 is served by 4 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.