Know Your Environment. Protect Your Health.

Perfluorooctanesulfonamide (PFOSA)

Northport Cottage Owners

Perfluorooctanesulfonamide (PFOSA) is a member of a class of chemicals called per- and polyfluoroalkyl substances or PFAS. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND70ND
2020N/A00N/A
2021ND50ND
2022N/A00N/A
2023N/A00N/A

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 perfluorooctanesulfonamide (PFOSA) was defined by EPA's final toxicity value for PFOS from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects against cardiovascular harm and harm to fetal growth.

ppt = parts per trillion

All test results

Date Lab ID Result
2018-11-07SWIN1811071400GGAND
2018-11-07SWEF1811071430GGAND
2019-05-03SWIN1905030840GSCND
2019-05-03SWEF1905030850GSCND
2019-05-30SWIN1905301600GGAND
2019-07-02SWIN1907021500GSCND
2019-07-25SWIN1907250900GSCND
2019-09-06SWIN1909061200GSCND
2019-09-23SWIN1909231505KMEND
2021-01-18SWIN2101181300GSCND
2021-03-03SWIN2103031200GSCND
2021-05-24SWIN2105241350GSCND
2021-07-21SWIN2107211130GGAND
2021-09-09SWIN2109090930GSCND