Know Your Environment. Protect Your Health.

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)

Stokesdale, Town of

NOTE: Stokesdale, Town of purchases water from City of Winston-Salem which is required to test for 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11cl-pf3ouds). Sample information shown below was taken by City of Winston-Salem.

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) is a member of a group of perfluorinated chemicals used in many consumer products. 11Cl-PF3OUdS and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

 

12

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
2023ND30ND
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 11Cl-PF3OUdS was defined by EWG as 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

NOTE: Stokesdale, Town of purchases water from City of Winston-Salem which is required to test for 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11cl-pf3ouds). Sample information shown below was taken by City of Winston-Salem.

Date Lab ID Result
2023-08-07C3H1177-01RE2ND
2023-08-07C3H1177-03ND
2023-08-07C3H1177-05ND
2024-01-02C4A0267-05ND
2024-02-05C4B0658-01ND
2024-02-05C4B0658-03ND
2024-02-05C4B0658-05ND
2024-02-14C4B2191-01RE1ND
2024-02-14C4B2191-03ND
2024-05-06C4E1072-01ND
2024-05-06C4E1072-03RE1ND
2024-05-06C4E1072-05ND