Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

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

Chino Basin Desalter Authority - Desalter 1

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.

MORE ABOUT THIS CONTAMINANT

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND480ND

ppt = parts per trillion

State and national drinking water standards and health guidelines

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. This health guideline protects against applies to the entire class of PFAS detected in water.

ppt = parts per trillion

All test results

Date Lab ID Result
2019-07-294790-021-1005ND
2019-07-294790-023-1130ND
2019-07-294790-006-0930ND
2019-07-294790-007-1145ND
2019-08-064790-001-0855ND
2019-08-064790-002-0910ND
2019-08-064790-005-0830ND
2019-08-064790-008-0840ND
2019-08-204790-018-0825ND
2019-08-204790-017-0810ND
2019-08-204790-019-0815ND
2019-08-204790-020-0820ND
2019-08-204790-021-0852ND
2019-09-044790-002-1010ND
2019-09-044790-015-0815ND
2019-09-044790-014-0800ND
2019-09-044790-013-0750ND
2019-09-044790-004-1115ND
2019-09-044790-011-0840ND
2019-09-044790-010-0855ND
2019-09-044790-009-0905ND
2019-09-044790-005-0930ND
2019-09-044790-008-0920ND
2019-09-044790-021-1100ND
2019-09-254790-010-0950ND
2019-09-254790-015-1020ND
2019-09-254790-024-1140ND
2019-10-094790-011-1008ND
2019-11-054790-009-1100ND
2019-11-264790-018-1310ND
2019-11-264790-024-1125ND
2019-11-264790-019-1255ND
2019-11-264790-020-1300ND
2019-11-264790-023-1140ND
2019-11-264790-021-0815ND
2019-11-264790-017-1250ND
2019-11-264790-014-0910ND
2019-11-264790-013-0850ND
2019-11-264790-011-0955ND
2019-11-264790-010-1005ND
2019-11-264790-009-1020ND
2019-11-264790-008-1035ND
2019-11-264790-007-0925ND
2019-11-264790-006-0945ND
2019-11-264790-005-1025ND
2019-11-264790-004-1155ND
2019-11-264790-002-1105ND
2019-12-094790-001-1040ND