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EWG's Tap Water Database — 2021 UPDATE

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Perfluorooctanoic acid (PFOA)

Hilton Head PSD 1

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND150ND
2014ND10ND
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 0.007 ppt

The EWG Health Guideline of 0.007 ppt for PFOA was proposed by California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2013-05-06201305080359AMND
2013-05-06201305080495AMND
2013-05-06201305080329AMND
2013-05-06201305080461AMND
2013-05-06201305080492AMND
2013-05-06201305080513AMND
2013-05-06201305080484AMND
2013-08-05201308070416AMND
2013-11-04201311060562AMND
2013-11-04201311060556AMND
2013-11-04201311060568AMND
2013-11-04201311060564AMND
2013-11-04201311060558AMND
2013-11-04201311060560AMND
2013-11-05201311060554AMND
2014-02-03201402050138AMND