Know Your Environment. Protect Your Health.

4:2 Fluorotelomer Sulfonic Acid (4:2 FTSA)

Veiola Water Idaho

4:2 Fluorotelomer Sulfonic Acid (4:2 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.

 

24

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
2024ND20ND

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 sulfonic acid (4:2 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
2023-05-1535800059001SE1ND
2023-05-1535800059003SE1ND
2023-05-1535800065003SE1ND
2023-05-1535800059005SE1ND
2023-05-1535800059007SE1ND
2023-05-1535799977001SE1ND
2023-05-1535800065001SE1ND
2023-05-1535799977003SE1ND
2023-05-1535799977005SE1ND
2023-06-1335806336001SE1ND
2023-08-0735818767003SE2ND
2023-08-0735818767001SE2ND
2023-10-2535837183015SE2ND
2023-10-2535837183013SE2ND
2023-10-2535837183011SE2ND
2023-10-2535837183009SE2ND
2023-10-2535837183007SE2ND
2023-10-2535837183005SE2ND
2023-10-2535837183003SE2ND
2023-10-2535837183001SE2ND
2023-11-1535842203001SE3ND
2023-11-1535842203003SE3ND
2024-02-2635862965001SE4ND
2024-02-2635862965003SE4ND