Know Your Environment. Protect Your Health.

4:2 Fluorotelomer sulfonate (4:2 FTS)

Firgrove Mutual Inc

4:2 Fluorotelomer sulfonate (4:2 FTS) 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
2022ND190ND
2023ND30ND

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 4:2 fluorotelomer sulfonate (4:2 FTS) 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
2022-02-094255273ND
2022-02-094255313ND
2022-02-094255313ND
2022-02-094255259ND
2022-02-094255323ND
2022-02-094255266ND
2022-02-094255325ND
2022-02-094255311ND
2022-02-094255303ND
2022-02-094255318ND
2022-02-094255322ND
2022-04-204279649ND
2022-07-144335589ND
2022-07-144335592ND
2022-07-144335588ND
2022-07-144335590ND
2022-07-144335591ND
2022-07-144335587ND
2022-07-144335587ND
2023-01-234555749ND
2023-07-104549175ND
2023-07-104549176ND