Know Your Environment. Protect Your Health.

4:2 Fluorotelomer sulfonate (4:2 FTS)

Cedar Crest

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.

 

30

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
2023ND300ND

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
2023-03-214449362ND
2023-03-214449352ND
2023-03-214449360ND
2023-03-214449363ND
2023-03-214449345ND
2023-03-224449351ND
2023-03-224449349ND
2023-03-224449354ND
2023-03-224449357ND
2023-03-224449347ND
2023-03-224449346ND
2023-04-184452606ND
2023-04-184452606ND
2023-05-304472137ND
2023-09-054526452ND
2023-09-054526451ND
2023-09-054526453ND
2023-09-054526456ND
2023-09-054526454ND
2023-09-054526455ND
2023-09-054526457ND
2023-09-054526458ND
2023-11-204568334ND
2023-11-204568342ND
2023-11-204568324ND
2023-11-204568341ND
2023-11-204568338ND
2023-11-204568335ND
2023-11-204568345ND
2023-11-204568343ND