Know Your Environment. Protect Your Health.

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

Grosse Pointe, City of

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

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
2020ND10ND
2021ND60ND
2022ND10ND
2023ND40ND

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

Date Lab ID Result
2020-10-073649740002ND
2021-01-21SWIN2101211300RGND
2021-02-173675770001ND
2021-03-08SWIN2103081415SKND
2021-05-12SWIN2105121125GSCND
2021-07-13SWIN2107131400GGAND
2021-09-14SWIN2109141330GGAND
2022-03-223764280001ND
2023-01-183832000001ND
2024-01-16112015PND
2024-04-16115513PND
2024-07-16118646PND