Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Grosse Pointe Farms

Perfluorooctane sulfonate (PFOS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS 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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND30ND
20190.231 ppt131ND - 3.00 ppt
2020ND10ND
2021ND70ND
2022ND20ND
2023ND20ND
2024ND30ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppt

The EWG Health Guideline of 0.3 ppt for PFOS 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
2018-07-17SWEF1807171020GSCND
2018-07-17SWEF1807171020GSCND
2018-07-17SWIN1807171015GSCND
2019-04-30SWIN1904301400GSCND
2019-04-30SWEF1904301405GSCND
2019-04-30SWEF1904301405GSCND
2019-05-30SWIN1905300850MKND
2019-05-30SWEF1905300855MKND
2019-06-28SWEF1906280750GSCND
2019-06-28SWIN1906280740GSCND
2019-07-30SWEF1907300820MKND
2019-07-30SWIN1907300815MK3.00 ppt
2019-08-27SWEF1908271200GSCND
2019-08-27SWIN1908271155GSCND
2019-09-24SWIN1909241200GSCND
2019-09-24SWEF1909241205GSCND
2020-10-073649740002ND
2021-01-21SWIN2101211300RGND
2021-02-173675770001ND
2021-02-17ND
2021-03-08SWIN2103081415SKND
2021-05-12SWIN2105121125GSCND
2021-07-13SWIN2107131400GGAND
2021-09-14SWIN2109141330GGAND
2022-03-223764280001ND
2022-03-22ND
2023-01-18ND
2023-01-183832000001ND
2024-01-16112015PND
2024-04-16115513PND
2024-07-16118646PND