Know Your Environment. Protect Your Health.

Hexafluoropropylene oxide dimer acid (HFPO-DA)

Kent Water District 1

Hexafluoropropylene oxide dimer acid (HFPO-DA) is a member of a group of perfluorinated chemicals used in many consumer products. HFPO-DA and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND30ND
2022ND10ND
2023ND50ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 9 ppt

The EWG Health Guideline of 9 ppt for HFPO-DA was based on the EPA's Human Health toxicity value.This health guideline protects against harm to the liver.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2021-04-13CH99465PFASND
2021-04-13CH99466PFASND
2021-05-06CI25412PFASND
2022-03-11CK88108PFASND
2023-05-17CO08298PFASND
2023-05-17CO08297PFASND
2023-06-14CO28336PFASND
2023-07-27CO60600PFASND
2023-08-31CO88139PFASND