Contaminant · PFAS
PFMPA in drinking water
Perfluoro-3-methoxypropanoic acid, an ether PFAS.
What the rules say
PFMPA has no federal limit or EPA health reference value.
Read the EPA source for PFMPA.
Across the country
EPA tested 10,307 water systems for PFMPA and found it in 2. Half of the systems that found it measured less than 9.1 ppt, and one in ten measured more than 10.1 ppt.
EPA's final UCMR 5 occurrence file contains 66,361 PFMPA results from 10,307 systems. 3 results were at or above the minimum reporting level, across 2 systems. Among detections, the median was 9.1 ppt and the 90th percentile was 10.1 ppt.
Systems with the highest recorded PFMPA results
| System | State | Population served | Recorded value | Records / periods |
|---|---|---|---|---|
| Iowa-American Wtr Co-Clinton District IA2326048 | Iowa | 24,769 | 10.4 ppt | 2 |
| City of Trinidad TX1070004 | Texas | 1,482 | 4.2 ppt | 1 |
Filters and testing
NSF/ANSI 58 (reverse osmosis)
A standard number by itself is not a contaminant claim. Check the product's current certification listing and performance data sheet for PFMPA or the specific contaminant you want to reduce. A utility-level record is not a test of your own faucet.