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EWG's Tap Water Database — 2021 UPDATE

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Perfluoroheptanoic acid (PFHPA)

City of Riverton

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

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND280ND
2014N/A00N/A
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
2013-02-05100446PND
2013-02-05100445PND
2013-02-05100457PND
2013-02-05100456PND
2013-02-05100455PND
2013-02-05100454PND
2013-02-05100453PND
2013-02-05100452PND
2013-02-05100451PND
2013-02-05100450PND
2013-02-05100449PND
2013-02-05100448PND
2013-02-05100447PND
2013-05-08101417QND
2013-08-05102004PND
2013-08-05102003PND
2013-08-05102002PND
2013-08-05102001PND
2013-08-05102000PND
2013-08-05101999PND
2013-08-05101998PND
2013-08-05101997PND
2013-08-05101996PND
2013-08-05101995PND
2013-08-05101994PND
2013-08-05101993PND
2013-08-05101992PND
2013-08-05101991PND