ZIP Code 77450
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.
Compounds Exceeding EPA Limits
What this means for you
One or more PFAS compounds were measured above the EPA's enforceable drinking water limit at a utility serving ZIP 77450. The EPA set these limits because long-term exposure at higher concentrations is associated with health effects including immune suppression, thyroid changes, and cancer risk increases. Standard pitcher filters (Brita, PUR) are not certified to remove PFAS. The most reliable at-home options are under-sink reverse osmosis systems or activated carbon block filters with an NSF/ANSI 58 certification specifically listing PFOA/PFOS reduction. Your water utility is required to bring levels into compliance by 2029 — filtering at the tap is the practical interim step if you'd like additional protection now.
CINCO MUD 2
TX0790306 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 21200.00ppt | No federal limit | — | Unregulated |
CINCO MUD 8
TX0790324 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 28500.00ppt | No federal limit | — | Unregulated |
CINCO MUD 7
TX0790343 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 32600.00ppt | No federal limit | — | Unregulated |
FORT BEND COUNTY MUD 142
TX0790429 High RiskPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 4.20ppt | 105% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 3.80ppt | 38% of limit
| 10 ppt | Below limit |
lithium | 12200.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 9.10ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 8.80ppt | No federal limit | — | Unregulated |
6:2 FTS 6:2 Fluorotelomer sulfonic acid | 7.90ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.00ppt | No federal limit | — | Unregulated |
MASON CREEK UTILITY DISTRICT
TX1010379 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 36000.00ppt | No federal limit | — | Unregulated |
WEST MEMORIAL MUD
TX1010540 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 22100.00ppt | No federal limit | — | Unregulated |
HARRIS COUNTY MUD 81
TX1010581 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 31900.00ppt | No federal limit | — | Unregulated |
HARRIS COUNTY MUD 61
TX1010721 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 15100.00ppt | No federal limit | — | Unregulated |
MEMORIAL MUD
TX1011242 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 29000.00ppt | No federal limit | — | Unregulated |
CIMARRON MUD
TX1011410 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 20600.00ppt | No federal limit | — | Unregulated |
CORNERSTONES MUD
TX1011692 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 20300.00ppt | No federal limit | — | Unregulated |
INTERSTATE MUD
TX1012264 ModeratePFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 3.10ppt | 31% of limit
| 10 ppt | Below limit |
lithium | 26700.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.60ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 5.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.30ppt | No federal limit | — | Unregulated |
NOTTINGHAM COUNTRY MUD
TX1012315 Low LevelPFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 26700.00ppt | No federal limit | — | Unregulated |
Values shown are the highest single-sample concentration measured at entry points to the distribution system. Results reflect water quality at the treatment plant — aging pipes, building plumbing, and on-site storage can affect what actually reaches your tap.