EAST MONTANA WATER SYSTEM
Moderate5 PFAS compounds detected at measurable levels
All detected PFAS are below the EPA Maximum Contaminant Levels set in April 2024.
5
PFAS Detected
0
Above EPA Limits
3
ZIPs Served
Surface
Water Source
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 76300.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 5.70ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 4.30ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.10ppt | No federal limit | — | Unregulated |
ZIP Codes Served by This Utility
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About this data
Source
EPA UCMR 5 — January 2026 release
Sampling period
January 2023 – December 2025
Water system ID (PWSID)
TX0710178
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor