Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Perfluoroheptanoic acid (PFHPA)

Kent County Water Authority

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.

MORE ABOUT THIS CONTAMINANT

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND50ND

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for perfluoroheptanoic acid was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.

ppt = parts per trillion

All test results

Date Lab ID Result
2014-05-05201405060285AMND
2014-05-05201405060333AMND
2014-05-05201405060309AMND
2014-05-19201405200214AMND
2014-05-19201405200199AMND
2014-08-18201408190675AMND
2014-08-18201408190490AMND
2014-11-19201411200426AMND
2014-11-19201411200430AMND
2014-11-19201411200522AMND
2014-11-19201411200528AMND
2014-11-19201411200469AMND
2014-11-19201411200467AMND
2014-11-19201411200532AMND
2015-02-11201502120669AMND
2015-02-11201502120427AMND
2019-04-291901838-01_TO20ND
2019-04-291901838-02_TO20ND
2019-04-291901838-05_TO20ND
2019-04-291901838-04_TO20ND
2019-04-291901838-03_TO20ND