Know Your Environment. Protect Your Health.

Perfluorodecanoic acid (PFDA)

Hemlock Mutual Water Company

Perfluorodecanoic acid (PFDA) is a member of a group of perfluorinated chemicals used in many consumer products. PFDA 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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND20ND
2021ND60ND
20220.417 ppt61ND - 2.50 ppt
2023ND80ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 0.006 ppt for PFDA was defined by EPA's toxicity value published in the Integrated Risk Information System’s toxicological review. This health guideline protects against harm to the immune system and harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2020-11-16CA1910053_002_002-202011161000ND
2020-11-16CA1910053_001_001-202011161015ND
2021-04-14CA1910053_001_001-202104140900ND
2021-04-14CA1910053_002_002-202104140850ND
2021-07-07CA1910053_002_002-202107071045ND
2021-07-07CA1910053_001_001-202107071050ND
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_001_001-202204071000ND
2022-04-07CA1910053_002_002-2022040709452.50 ppt
2022-10-05CA1910053_002_002-202210051035ND
2022-10-05CA1910053_001_001-202210051055ND
2023-03-30CA1910053_002_002-202303300925ND
2023-04-17CA1910053_002_002-202304170830ND
2023-04-17CA1910053_001_001-202304170855ND
2023-09-06CA1910053_002_002-202309060945ND
2023-09-06CA1910053_001_001-202309060955ND
2023-10-05CA1910053_002_002-202310050920ND
2023-12-06CA1910053_001_001-20231206NULND
2023-12-06CA1910053_001_001-202312060910ND