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EWG's Tap Water Database — 2021 UPDATE

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Perfluoroheptanoic acid (PFHPA)

Town of Payson

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND540ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

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
2014-06-02201406030495AMND
2014-06-02201406030508AMND
2014-06-02201406030497AMND
2014-06-02201406030506AMND
2014-06-03201406040655AMND
2014-06-03201406040424AMND
2014-06-03201406040610AMND
2014-06-03201406040665AMND
2014-06-04201406050170AMND
2014-06-04201406050225AMND
2014-06-04201406050221AMND
2014-06-04201406050210AMND
2014-06-09201406100339AMND
2014-06-09201406100337AMND
2014-06-09201406100392AMND
2014-06-16201406170314AMND
2014-06-16201406170309AMND
2014-06-16201406170275AMND
2014-06-16201406170306AMND
2014-06-17201406180504AMND
2014-06-17201406180562AMND
2014-06-17201406180470AMND
2014-06-18201406190432AMND
2014-06-18201406190440AMND
2014-06-18201406190411AMND
2014-06-18201406190405AMND
2014-06-26201406270274AMND
2014-12-03201412040562AMND
2014-12-03201412040499AMND
2014-12-03201412040384AMND
2014-12-03201412040501AMND
2014-12-04201412050490AMND
2014-12-04201412050397AMND
2014-12-08201412100584AMND
2014-12-08201412110690AMND
2014-12-08201412100809AMND
2014-12-08201412100435AMND
2014-12-09201412100847AMND
2014-12-09201412110340AMND
2014-12-09201412100737AMND
2014-12-09201412100793AMND
2014-12-09201412110242AMND
2014-12-10201412110648AMND
2014-12-10201412110782AMND
2014-12-10201412110609AMND
2014-12-10201412110614AMND
2014-12-15201412160729AMND
2014-12-15201412160701AMND
2014-12-15201412160310AMND
2014-12-16201412170429AMND
2014-12-16201412170514AMND
2014-12-16201412170681AMND
2014-12-16201412170517AMND
2014-12-17201412180510AMND