Is there PFAS in Murray City Water System tap water?
Yes. PFAS were detected, below the federal limit for PFOA and PFOS.
Murray City Water System is a public water system in Utah, serving more than 10,000 people. The EPA required almost every system in the country to test for 29 PFAS compounds and published every result. These are that system’s own readings, not an estimate and not ours.
Every compound tested, 7 of 29 found
| Compound | Highest reading | Federal limit | Detected in |
|---|---|---|---|
| PFPeA | 8.9 ppt | no federal limit | 4 of 38 samples |
| PFBS | 7.5 ppt | no federal limit | 4 of 38 samples |
| PFHxA | 7.1 ppt | no federal limit | 4 of 38 samples |
| PFBA | 6.2 ppt | no federal limit | 4 of 38 samples |
| PFHxS | 4.2 ppt | 10 pptEPA has proposed withdrawing this limit | 4 of 38 samples |
| PFOA | 4 ppt | 4 ppt | 1 of 38 samples |
| PFHpA | 3.2 ppt | no federal limit | 2 of 38 samples |
| 11Cl-PF3OUdS | not detected | no federal limit | 0 of 38 samples |
| 4:2 FTS | not detected | no federal limit | 0 of 38 samples |
| 6:2 FTS | not detected | no federal limit | 0 of 38 samples |
| 8:2 FTS | not detected | no federal limit | 0 of 38 samples |
| 9Cl-PF3ONS | not detected | no federal limit | 0 of 38 samples |
| ADONA | not detected | no federal limit | 0 of 38 samples |
| HFPO-DA | not detected | 10 pptEPA has proposed withdrawing this limit | 0 of 38 samples |
| NEtFOSAA | not detected | no federal limit | 0 of 37 samples |
| NFDHA | not detected | no federal limit | 0 of 38 samples |
| NMeFOSAA | not detected | no federal limit | 0 of 37 samples |
| PFDA | not detected | no federal limit | 0 of 38 samples |
| PFDoA | not detected | no federal limit | 0 of 38 samples |
| PFEESA | not detected | no federal limit | 0 of 38 samples |
| PFHpS | not detected | no federal limit | 0 of 38 samples |
| PFMBA | not detected | no federal limit | 0 of 38 samples |
| PFMPA | not detected | no federal limit | 0 of 38 samples |
| PFNA | not detected | 10 pptEPA has proposed withdrawing this limit | 0 of 38 samples |
| PFOS | not detected | 4 ppt | 0 of 38 samples |
| PFPeS | not detected | no federal limit | 0 of 38 samples |
| PFTA | not detected | no federal limit | 0 of 37 samples |
| PFTrDA | not detected | no federal limit | 0 of 37 samples |
| PFUnA | not detected | no federal limit | 0 of 38 samples |
Every row is a compound the EPA required this system to test for, whether it was found or not. Readings are the highest single result the system reported. Compliance is judged on an annual average, so one high sample is not by itself a violation. “Not detected” means below the level the laboratory method can measure, which is not the same as zero. Last sample 2/3/2025.
What actually removes it
Boiling does not remove PFAS and concentrates it. Reverse osmosis and certified activated carbon do. These are the highest-graded filters in our database, scored 0 to 100 on the chemistry of the filter itself.
- 100Aquamira Aquamira Water Storage Treatment 2 oz Glass Bottles 60 gallons PurificationCheck price
- 100Big Berkey Big Berkey Empty Housing with NO Filters IncludedCheck price
- 100LifeStraw LifeStraw Home Glass Water Filter PitcherCheck price
- 100Big Berkey Berkey Big Water Filter SystemCheck price
- 100Big Berkey Big Berkey Water Filter SystemCheck price
ZIP codes this system serves
84107, 84117, 84123
Other systems in Utah
Source, the EPA’s fifth Unregulated Contaminant Monitoring Rule, final dataset published 2026-10-15. Original data → Figures are the system’s own reported results. Water quality changes, and a result from the monitoring period is not a statement about what is in the tap today.