Know Your Environment. Protect Your Health.

Perfluoroheptanoic acid (PFHPA)

City of Edmonds

NOTE: City of Edmonds purchases water from Alderwood Water District which is required to test for perfluoroheptanoic acid (pfhpa). Sample information shown below was taken by Alderwood Water District.

Perfluoroheptanoic acid is a member of a group of perfluorinated chemicals used in many consumer products. 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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND20ND
2024ND20ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1,000 ppt

The EWG Health Guideline of 1,000 ppt for perfluoroheptanoic acid was defined by EPA's recommended application of the toxicity value for PFHxA published in the Integrated Risk Information System’s toxicological review. This health guideline harm to fetal growth and child development.

ppt = parts per trillion

All test results

NOTE: City of Edmonds purchases water from Alderwood Water District which is required to test for perfluoroheptanoic acid (pfhpa). Sample information shown below was taken by Alderwood Water District.

Date Lab ID Result
2023-02-224523930ND
2023-05-234523931ND
2023-08-284523932ND
2023-11-15MDK0433-01ND