Know Your Environment. Protect Your Health.

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

Middleton Water Department

NOTE: Middleton Water Department purchases water from Danvers Water Department which is required to test for 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11cl-pf3ouds). Sample information shown below was taken by Danvers Water Department.

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.

 

33

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
2021ND90ND
2022ND70ND
2023ND150ND
2024ND30ND

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: Middleton Water Department purchases water from Danvers Water Department which is required to test for 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11cl-pf3ouds). Sample information shown below was taken by Danvers Water Department.

Date Result
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-04-26ND
2021-07-07ND
2021-07-07ND
2021-08-03ND
2021-09-02ND
2021-10-17ND
2022-01-26ND
2022-03-01ND
2022-04-12ND
2022-07-18ND
2022-10-11ND
2022-11-21ND
2022-12-07ND
2023-01-06ND
2023-01-09ND
2023-02-13ND
2023-03-15ND
2023-04-11ND
2023-04-11ND
2023-05-03ND
2023-06-07ND
2023-07-10ND
2023-07-11ND
2023-07-12ND
2023-08-10ND
2023-10-13ND
2023-11-28ND
2023-12-18ND
2024-01-10ND
2024-05-16ND