4 compounds detected
Trace detections — well below EPA limits
Plain English
01What this means for you
Very low PFAS concentrations were detected — well below the EPA's Maximum Contaminant Level. For most healthy adults, this represents a minimal incremental risk from drinking water. The most proportionate response is to note the result and check your utility's Consumer Confidence Report again next year. If you have specific health concerns or vulnerable household members, speaking with your doctor and optionally installing a certified point-of-use filter is a reasonable step.
02CITY OF TOMBALL
Low LevelPWSID · TX1010026
PFAS test results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 27100.00ppt | No federal limit | — | Unregulated |
03HARRIS COUNTY MUD 1
Low LevelPWSID · TX1010539
PFAS test results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 36500.00ppt | No federal limit | — | Unregulated |
04DOWDELL PUD
Low LevelPWSID · TX1010592
PFAS test results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 57400.00ppt | No federal limit | — | Unregulated |
05HARRIS COUNTY MUD 368
Low LevelPWSID · TX1011908
PFAS test results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 23800.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 6.30ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 4.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 3.00ppt | No federal limit | — | Unregulated |
06HARRIS COUNTY MUD 401
Low LevelPWSID · TX1013289
PFAS test results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 60000.00ppt | No federal limit | — | Unregulated |
07HARRIS MONTGOMERY COUNTIES MUD 386
Low LevelPWSID · TX1013305
PFAS test results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 55300.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 77375 is served by 6 separate water utilities. Results above show data for each system independently.
Source & Methodology
About this data
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. "Not detected" means below the MRL, not literally zero.
View raw EPA UCMR 5 occurrence data →Related
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