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EWG's Tap Water Database — 2021 UPDATE

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Perfluorooctanoic acid (PFOA)

Lihue-Kapaa

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND220ND
2015ND230ND
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
2014-07-09201407110329AMND
2014-07-09201407110393AMND
2014-07-09201407110331AMND
2014-07-09201407110388AMND
2014-07-11201407160559AMND
2014-07-11201407150413AMND
2014-07-11201407160644AMND
2014-07-11201407160693AMND
2014-07-11201407150417AMND
2014-07-15201407170558AMND
2014-07-15201407170554AMND
2014-07-15201407170587AMND
2014-07-15201407170502AMND
2014-07-17201407180240AMND
2014-07-17201407180232AMND
2014-07-17201407180252AMND
2014-07-21201407230494AMND
2014-07-21201407230566AMND
2014-07-21201407230803AMND
2014-07-21201407230562AMND
2014-07-29201407310306AMND
2014-10-27201410290419AMND
2015-01-05201501070169AMND
2015-01-05201501070211AMND
2015-01-05201501070174AMND
2015-01-05201501070217AMND
2015-01-06201501080712AMND
2015-01-06201501080702AMND
2015-01-07201501090548AMND
2015-01-07201501090559AMND
2015-01-09201501130614AMND
2015-01-09201501140369AMND
2015-01-09201501130506AMND
2015-01-09201501130599AMND
2015-01-12201501140607AMND
2015-01-12201501140527AMND
2015-01-12201501140662AMND
2015-01-12201501140519AMND
2015-01-14201501160248AMND
2015-01-14201501160246AMND
2015-01-14201501160119AMND
2015-01-14201501160193AMND
2015-01-14201501160239AMND
2015-04-20201504220563AMND
2015-07-31201508050054AMND