Know Your Environment. Protect Your Health.

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

Hillcrest Water District

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

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.

 

131

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
2020ND20ND
2021ND10ND
2022ND30ND
2023ND10ND

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

Date Result
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-07-20ND
2021-08-11ND
2021-08-11ND
2021-08-11ND
2021-08-11ND
2021-08-11ND
2021-08-11ND
2021-08-11ND
2021-09-15ND
2021-09-15ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-11-23ND
2021-11-23ND
2021-12-15ND
2021-12-15ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-26ND
2022-01-26ND
2022-01-26ND
2022-02-22ND
2022-02-22ND
2022-03-16ND
2022-03-16ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-05-19ND
2022-05-19ND
2022-06-28ND
2022-06-28ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-08-25ND
2022-08-25ND
2022-09-22ND
2022-09-22ND
2022-10-26ND
2022-10-26ND
2022-10-26ND
2022-10-26ND
2022-11-22ND
2022-11-22ND
2022-12-20ND
2022-12-20ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-02-21ND
2023-03-22ND
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-05-22ND
2023-06-22ND
2023-07-24ND
2023-07-24ND
2023-07-24ND
2023-07-24ND
2023-07-24ND
2023-07-24ND
2023-08-22ND
2023-08-23ND
2023-09-28ND
2023-09-29ND
2023-10-17ND
2023-10-17ND
2023-10-17ND
2023-10-17ND
2023-10-17ND
2023-10-17ND