Know Your Environment. Protect Your Health.

Perfluorobutane sulfonate (PFBS)

San Gabriel Valley Water Company-Montebello

Perfluorobutane sulfonate (PFBS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS 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.

 

2

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND100ND
2015ND100ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
20190.919 ppt213ND - 8.70 ppt
2020ND420ND
20210.0330 ppt701ND - 2.30 ppt
20220.0360 ppt972ND - 1.80 ppt
2023ND1540ND
2024ND20ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 2,000 ppt

The EWG Health Guideline of 2,000 ppt for perfluorobutane sulfonate was defined by EPA’s Human Health toxicity value. This health guideline hormone disruption and harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2024-01-08111640PND
2024-07-13118340PND