Know Your Environment. Protect Your Health.

Perfluorooctanoic acid (PFOA)

Clare, City of

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20191.000 ppt42ND - 2.00 ppt
20201.50 ppt43ND - 2.00 ppt
20210.725 ppt82ND - 2.90 ppt
2022ND80ND
2023ND50ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.09 ppt

The EWG Health Guideline of 0.09 ppt for PFOA was was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2018-11-12GWEF1811120900GGAND
2019-04-05GWEF1904051100GGAND
2019-06-28GWEF1906281405ST2.00 ppt
2019-09-26GWEF1909261425MK2.00 ppt
2019-12-18GWEF1912181230KMEND
2020-03-30GWEF2003301055SKND
2020-07-06GWEF2007061105MK2.00 ppt
2020-10-08LJ28033 PFAS2.00 ppt
2020-10-08GWEF2010081330GGA2.00 ppt
2021-03-0321C0145-01 PFAS2.90 ppt
2021-03-032.90 ppt
2021-04-072104443-01 PFASND
2021-04-07ND
2021-07-07ND
2021-07-0721G0309-01 PFASND
2021-10-06ND
2021-10-062110507-01 PFASND
2022-01-1222A0380-305 PFASND
2022-01-12ND
2022-04-13ND
2022-04-132204A21-01 PFASND
2022-07-13ND
2022-07-1322G0784 PFASND
2022-10-05ND
2022-10-0522J0245 PFASND
2023-01-0423A0211-01 PFASND
2023-01-04ND
2023-04-05ND
2023-07-05ND
2023-10-04ND