Know Your Environment. Protect Your Health.

Hexafluoropropylene oxide dimer acid (HFPO-DA)

Hemlock Mutual Water Company

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.

 

23

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
2020ND20ND
2021ND70ND
2022ND60ND
2023ND80ND

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
2020-11-16CA1910053_002_002-202011161000ND
2020-11-16CA1910053_001_001-202011161015ND
2021-02-08CA1910053_001_001-202102080825ND
2021-04-14CA1910053_002_002-202104140850ND
2021-04-14CA1910053_001_001-202104140900ND
2021-07-07CA1910053_001_001-202107071050ND
2021-07-07CA1910053_002_002-202107071045ND
2021-10-15CA1910053_002_002-202110150930ND
2021-10-15CA1910053_001_001-202110150945ND
2022-01-07CA1910053_002_002-202201070915ND
2022-01-07CA1910053_001_001-202201070930ND
2022-04-07CA1910053_002_002-202204070945ND
2022-04-07CA1910053_001_001-202204071000ND
2022-10-05CA1910053_001_001-202210051055ND
2022-10-05CA1910053_002_002-202210051035ND
2023-03-30CA1910053_002_002-202303300925ND
2023-04-17CA1910053_002_002-202304170830ND
2023-04-17CA1910053_001_001-202304170855ND
2023-09-06CA1910053_001_001-202309060955ND
2023-09-06CA1910053_002_002-202309060945ND
2023-10-05CA1910053_002_002-202310050920ND
2023-12-06CA1910053_001_001-20231206NULND
2023-12-06CA1910053_001_001-202312060910ND