Perfluorooctanoic acid (PFOA)

West Allis Waterworks

NOTE: West Allis Waterworks purchases water from Milwaukee Waterworks which is required to test for perfluorooctanoic acid (pfoa). Sample information shown below was taken by Milwaukee Waterworks.

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	ND	1	ND
2014	ND	3	ND
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	N/A	0	N/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
2013-02-11	2777864	ND
2013-02-12	2778878	ND
2013-05-06	2819865	ND
2013-05-06	2819850	ND
2013-08-05	2869989	ND
2013-08-05	2869977	ND
2013-11-04	2924745	ND
2013-11-04	2924671	ND