PFAS in Idaho Water
Based on EPA UCMR 5 testing of 8 public water systems in Idaho.
See Idaho on the national heatmap8
Systems Tested
8
With PFAS Detected
3
Above EPA Limits
38%
Exceed MCL
Most Commonly Detected PFAS in Idaho
Systems with detections · EPA UCMR 5 (2023–2025)
PFPeA 6 systems
PFHxA 6 systems
PFBS 5 systems
PFHxS 4 systems
PFOS 3 systems
PFNA 2 systems
Check your Idaho ZIP code
Get specific results for your neighborhood's water utility.
Water Systems in Idaho (8)
Click any row to see ZIP-level details| Water System | PWSID | PFAS Detected | Above MCL | Risk |
|---|---|---|---|---|
| CAPITOL WATER CORP Groundwater | ID4010022 | 7 | 3 | High Risk |
| GARDEN CITY WATER AND SEWER SYSTEM Groundwater | ID4010066 | 7 | 2 | High Risk |
| MERIDIAN WATER DEPT Groundwater | ID4010097 | 2 | 1 | High Risk |
| MOUNTAIN HOME AIR FORCE BASE Groundwater | ID4200054 | 4 | 0 | Low Level |
| LEWISTON CITY OF Groundwater | ID2350014 | 3 | 0 | Low Level |
| RATHDRUM CITY OF Groundwater | ID1280152 | 2 | 0 | Low Level |
| PAYETTE CITY OF Groundwater | ID3380009 | 2 | 0 | Low Level |
| SHELLEY CITY OF Groundwater | ID6060071 | 1 | 0 | Low Level |