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EWG's Tap Water Database — 2021 UPDATE

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Perfluorooctanoic acid (PFOA)

Westfield Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

31

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20133.58 ppt121ND - 43.0 ppt
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
20177.10 ppt116.80 ppt - 7.30 ppt
20183.07 ppt74ND - 6.90 ppt
2019ND110ND

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 Result
2013-02-27ND
2013-02-27ND
2013-02-27ND
2013-02-27ND
2013-02-2743.0 ppt
2013-02-27ND
2013-08-19ND
2013-08-19ND
2013-08-19ND
2013-08-19ND
2013-08-19ND
2013-10-23ND
2017-06-017.10 ppt*
2018-03-294.70 ppt
2018-04-12ND
2018-06-135.10 ppt
2018-06-136.90 ppt
2018-09-284.80 ppt
2018-10-24ND
2018-10-24ND
2019-05-29ND
2019-05-29ND
2019-07-24ND
2019-07-24ND
2019-08-02ND
2019-08-28ND
2019-08-28ND
2019-11-04ND
2019-11-05ND
2019-12-03ND
2019-12-03ND

* Sample result is taken from the system's CCR report.