Know Your Environment. Protect Your Health.

N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

Sfpuc-pleasanton Wells

N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) is a member of a group of perfluorinated chemicals used in many consumer products. NMeFOSAA 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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND20ND
2021ND50ND
20220.486 ppt71ND - 3.40 ppt
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 NMeFOSAA 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
2020-10-07CA0110018_004_004-202010071018ND
2020-10-07CA0110018_005_005-202010071037ND
2021-01-04CA0110018_005_005-202101040945ND
2021-01-04CA0110018_004_004-202101040916ND
2021-04-05CA0110018_005_005-202104050923ND
2021-07-06CA0110018_005_005-202107060930ND
2021-10-04CA0110018_005_005-202110041020ND
2022-01-03CA0110018_005_005-202201031030ND
2022-03-15CA0110018_004_004-202203150929ND
2022-04-05CA0110018_004_004-202204051104ND
2022-06-14CA0110018_005_005-2022083110513.40 ppt
2022-07-06CA0110018_004_004-202207060847ND
2022-07-06CA0110018_004_004-202207060849ND
2022-10-04CA0110018_004_004-202210040934ND