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EWG's Tap Water Database — 2021 UPDATE

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N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

Devens Massdevelopment

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.

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37

Samples

0

Samples exceeding legal limit (MCL)

1

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
2018ND70ND
20190.115 ppt301ND - 3.46 ppt

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

ppt = parts per trillion

All test results

Date Result
2018-02-27ND
2018-05-14ND
2018-05-14ND
2018-08-03ND
2018-08-03ND
2018-10-25ND
2018-10-25ND
2019-02-20ND
2019-02-20ND
2019-05-21ND
2019-05-21ND
2019-08-02ND
2019-08-20ND
2019-08-203.46 ppt
2019-09-03ND
2019-09-03ND
2019-09-18ND
2019-09-18ND
2019-09-25ND
2019-10-02ND
2019-10-02ND
2019-10-09ND
2019-10-15ND
2019-10-15ND
2019-10-23ND
2019-10-30ND
2019-10-30ND
2019-11-06ND
2019-11-13ND
2019-11-13ND
2019-11-20ND
2019-11-25ND
2019-11-25ND
2019-12-04ND
2019-12-18ND
2019-12-23ND
2019-12-23ND