Know Your Environment. Protect Your Health.

8:2 Fluorotelomer Sulfonic Acid (8:2 FTSA)

Town of Hampstead

8:2 Fluorotelomer Sulfonic Acid (8:2 FTSA) 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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND220ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppt

The EWG Health Guideline of 1 ppt for 8:2 fluorotelomer sulfonic acid (8:2 FTSA) was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water.

ppt = parts per trillion

All test results

Date Lab ID Result
2023-02-07101013PND
2023-02-07101023PND
2023-02-07101014PND
2023-02-07101022PND
2023-02-07101016PND
2023-02-07101021PND
2023-02-07101018PND
2023-02-07101012PND
2023-02-07101019PND
2023-02-07101020PND
2023-08-16106683PND
2023-08-16106688PND
2023-08-16106687PND
2023-08-16106686PND
2023-08-16106685PND
2023-08-16106684PND
2023-08-16106681PND
2023-08-16106680PND
2023-08-16106679PND
2023-08-16106678PND
2023-08-16106677PND
2023-12-19111489RND