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

California Water Service - Livermore

NOTE: California Water Service - Livermore purchases water from Zone 7 Water Agency which is required to test for 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11cl-pf3ouds). Sample information shown below was taken by Zone 7 Water Agency.

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

 

142

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
2019ND220ND
2020ND100ND
2021ND200ND
2022ND260ND
2023ND530ND
2024ND130ND

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: California Water Service - Livermore purchases water from Zone 7 Water Agency which is required to test for 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11cl-pf3ouds). Sample information shown below was taken by Zone 7 Water Agency.

Date Lab ID Result
2019-07-08CA0110010_017_017-201907080925ND
2019-07-08CA0110010_011_011-201907080945ND
2019-07-08CA0110010_019_019-201907081045ND
2019-07-08CA0110010_020_020-201907081130ND
2019-07-08CA0110010_005_005-201907080720ND
2019-07-08CA0110010_024_024-201907080905ND
2019-07-08CA0110010_023_023-201907081020ND
2019-09-05CA0110010_006_006-201909050930ND
2019-09-05CA0110010_007_007-201909050910ND
2019-09-05CA0110010_013_013-201909050920ND
2019-10-07CA0110010_001_001-201910071325ND
2019-10-07CA0110010_006_006-201910070900ND
2019-10-07CA0110010_007_007-201910070830ND
2019-10-07CA0110010_008_008-201910071210ND
2019-10-07CA0110010_012_012-201910071015ND
2019-10-07CA0110010_013_013-201910070945ND
2019-10-07CA0110010_020_020-201910070920ND
2019-10-08CA0110010_017_017-201910080830ND
2019-10-08CA0110010_024_024-201910080930ND
2019-11-04CA0110010_019_019-201911040900ND
2019-11-04CA0110010_023_023-201911040840ND
2019-11-05CA0110010_026_026-201911050935ND
2020-01-06CA0110010_017_017-202001060940ND
2020-01-06CA0110010_024_024-202001060925ND
2020-01-06CA0110010_019_019-202001060840ND
2020-01-06CA0110010_023_023-202001060905ND
2020-01-07CA0110010_006_006-202001070910ND
2020-01-07CA0110010_020_020-202001071400ND
2020-01-07CA0110010_007_007-202001070935ND
2020-01-07CA0110010_012_012-202001071000ND
2020-01-07CA0110010_013_013-202001071025ND
2020-07-06CA0110010_008_008-202007061035ND
2020-07-06CA0110010_024_024-202007060820ND
2020-07-06CA0110010_008_008-202007061035ND
2020-07-06CA0110010_012_012-202007060725ND
2020-07-06CA0110010_023_023-202007060920ND
2020-07-06CA0110010_001_001-202007061140ND
2020-07-07CA0110010_005_005-202007070940ND
2020-07-07CA0110010_006_006-202007071115ND
2020-07-07CA0110010_017_017-202007070925ND
2020-07-07CA0110010_011_011-202007070850ND
2020-07-07CA0110010_019_019-202007070800ND
2020-07-08CA0110010_013_013-202007080925ND
2020-07-08CA0110010_007_007-202007080830ND
2020-07-08CA0110010_020_020-202007081000ND
2020-10-06CA0110010_023_023-202010060900ND
2020-10-06CA0110010_025_025-202010060915ND
2020-10-26CA0110010_007_007-202010260745ND
2020-10-26CA0110010_013_013-202010260915ND
2020-10-26CA0110010_020_020-202010260720ND
2020-10-26CA0110010_012_012-202010260731ND
2020-10-26CA0110010_024_024-202010260805ND
2020-12-17CA0110010_019_019-202012171015ND
2021-01-11CA0110010_025_025-202101111115ND
2021-01-11CA0110010_013_013-202101110940ND
2021-01-11CA0110010_023_023-202101111055ND
2021-01-11CA0110010_024_024-202101111035ND
2021-02-16CA0110010_019_019-202102161010ND
2021-03-22CA0110010_017_017-202103221126ND
2021-03-30CA0110010_007_007-202103301235ND
2021-04-12CA0110010_007_007-202104121605ND
2021-04-12CA0110010_008_008-202104121657ND
2021-04-12CA0110010_001_001-202104121405ND
2021-04-12CA0110010_005_005-202104121510ND
2021-05-10CA0110010_020_020-202105101110ND
2021-05-10CA0110010_007_007-202105101037ND
2021-05-10CA0110010_012_012-202105101130ND
2021-05-10CA0110010_013_013-202105101052ND
2021-05-11CA0110010_024_024-202105110804ND
2021-05-11CA0110010_017_017-202105110745ND
2021-05-11CA0110010_025_025-202105110815ND
2021-06-21CA0110010_023_023-202106210815ND
2021-07-12CA0110010_005_005-202107121145ND
2021-07-12CA0110010_008_008-202107121052ND
2021-07-12CA0110010_001_001-202107121225ND
2021-07-12CA0110010_013_013-202107121015ND
2021-07-12CA0110010_017_017-202107120815ND
2021-07-12CA0110010_011_011-202107121215ND
2021-07-12CA0110010_020_020-202107121055ND
2021-07-12CA0110010_024_024-202107120845ND
2021-07-12CA0110010_025_025-202107120935ND
2021-07-14CA0110010_012_012-202107140850ND
2021-07-21CA0110010_007_007-202107210850ND
2021-07-21CA0110010_019_019-202107210820ND
2021-08-03CA0110010_023_023-202108030935ND
2021-10-04CA0110010_020_020-202110040950ND
2021-10-04CA0110010_023_023-202110040845ND
2021-10-04CA0110010_012_012-202110041040ND
2021-10-04CA0110010_017_017-202110040800ND
2021-10-04CA0110010_024_024-202110040825ND
2021-10-04CA0110010_013_013-202110041005ND
2021-10-04CA0110010_019_019-202110040915ND
2021-10-04CA0110010_025_025-202110040858ND
2021-10-07CA0110010_007_007-202110070925ND
2022-01-10CA0110010_001_001-202201100930ND
2022-01-10CA0110010_013_013-202201101220ND
2022-01-10CA0110010_017_017-202201100806ND
2022-01-10CA0110010_019_019-202201101030ND
2022-01-10CA0110010_023_023-202201100900ND
2022-01-10CA0110010_025_025-202201100853ND
2022-01-10CA0110010_007_007-202201101145ND
2022-01-10CA0110010_020_020-202201101150ND
2022-01-10CA0110010_024_024-202201100835ND
2022-01-11CA0110010_005_005-202201111050ND
2022-01-11CA0110010_012_012-202201110818ND
2022-04-06CA0110010_023_023-202204060850ND
2022-04-06CA0110010_017_017-202204060920ND
2022-04-06CA0110010_024_024-202204060820ND
2022-04-06CA0110010_025_025-202204060905ND
2022-04-11CA0110010_007_007-202204111000ND
2022-04-11CA0110010_012_012-202204110935ND
2022-04-11CA0110010_013_013-202204110910ND
2022-04-11CA0110010_019_019-202204111025ND
2022-04-11CA0110010_020_020-202204110835ND
2022-07-11CA0110010_024_024-202207111300ND
2022-07-11CA0110010_013_013-202207111030ND
2022-07-11CA0110010_020_020-202207111013ND
2022-07-11CA0110010_007_007-202207110940ND
2022-07-11CA0110010_012_012-202207111100ND
2022-09-13CA0110010_019_019-202209131100ND
2022-09-13CA0110010_019_019-202209131100ND
2023-02-02CA0110010_020_020-202302021207ND
2023-02-02CA0110010_012_012-202302021200ND
2023-02-02CA0110010_013_013-202302021145ND
2023-02-21CA0110010_020_020-202302211240ND
2023-03-06CA0110010_020_020-202303061155ND
2023-05-15CA0110010_007_007-202305151132ND
2023-05-15CA0110010_013_013-202305151145ND
2023-05-15CA0110010_011_011-202305151030ND
2023-05-15CA0110010_005_005-202305151041ND
2023-05-15CA0110010_020_020-202305151250ND
2023-08-03CA0110010_019_019-202308031410ND
2023-08-10CA0110010_007_007-202308100810ND
2023-10-02CA0110010_010_010-202310021200ND
2023-10-02CA0110010_019_019-202310021140ND
2023-10-04CA0110010_005_005-202310041315ND
2023-10-04CA0110010_007_007-202310041405ND
2023-10-04CA0110010_011_011-202310041330ND
2023-10-04CA0110010_020_020-202310041358ND
2023-10-04CA0110010_013_013-202310041350ND
2023-11-15CA0110010_010_010-202311151015ND
2023-11-15CA0110010_019_019-202311151040ND