CITY OF TYE
High Risk3 PFAS compound(s) exceed EPA Maximum Contaminant Levels
This utility has until 2029 to install treatment under the EPA's April 2024 PFAS rule. In the meantime, a point-of-use filter certified NSF/ANSI 58 for PFOA/PFOS provides reliable interim protection.
10
PFAS Detected
3
Above EPA Limits
1
ZIP Served
Surface
Water Source
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 20.40ppt | 510% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 19.00ppt | 190% of limit
| 10 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 4.70ppt | 118% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 13500.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 13.20ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 12.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.80ppt | No federal limit | — | Unregulated |
6:2 FTS 6:2 Fluorotelomer sulfonic acid | 7.00ppt | No federal limit | — | Unregulated |
Show 2 more compounds detected at low levels
| PFHpAPerfluoroheptanoic acid | 6.60 ppt | No federal limit |
| PFBSPerfluorobutane sulfonic acid | 5.30 ppt | No federal limit |
About this data
Source
EPA UCMR 5 — January 2026 release
Sampling period
January 2023 – December 2025
Water system ID (PWSID)
TX2210011
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor