Know Your Environment. Protect Your Health.

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

Cal Am Water Company - Ambler Park

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
2021ND90ND
2022ND30ND
2023N/A00N/A

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

Date Lab ID Result
2021-04-15CA2710006_009_009-202104151425ND
2021-04-22CA2710006_004_004-202104221445ND
2021-04-22CA2710006_006_006-202104221434ND
2021-07-21CA2710006_006_006-202107211320ND
2021-07-21CA2710006_004_004-202107211332ND
2021-07-29CA2710006_009_009-202107291307ND
2021-10-08CA2710006_006_006-202110081323ND
2021-10-08CA2710006_004_004-202110081330ND
2021-10-21CA2710006_009_009-202110211129ND
2022-01-20CA2710006_004_004-202201201335ND
2022-01-26CA2710006_009_009-202201261425ND
2022-02-10CA2710006_006_006-202202101045ND