Know Your Environment. Protect Your Health.

Perfluorobutane sulfonate (PFBS)

Hemlock Mutual Water Company

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
20201.90 ppt221.80 ppt - 2.00 ppt
20210.300 ppt61ND - 1.80 ppt
20220.283 ppt61ND - 1.70 ppt
20235.65 ppt87ND - 24.0 ppt

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
2015-06-02113626PND
2020-11-16CA1910053_001_001-2020111610151.80 ppt
2020-11-16CA1910053_002_002-2020111610002.00 ppt
2021-04-14CA1910053_001_001-202104140900ND
2021-04-14CA1910053_002_002-202104140850ND
2021-07-07CA1910053_001_001-202107071050ND
2021-07-07CA1910053_002_002-2021070710451.80 ppt
2021-10-15CA1910053_002_002-202110150930ND
2021-10-15CA1910053_001_001-202110150945ND
2022-01-07CA1910053_002_002-202201070915ND
2022-01-07CA1910053_001_001-202201070930ND
2022-04-07CA1910053_002_002-202204070945ND
2022-04-07CA1910053_001_001-202204071000ND
2022-10-05CA1910053_002_002-202210051035ND
2022-10-05CA1910053_001_001-2022100510551.70 ppt
2023-03-30CA1910053_002_002-2023033009251.90 ppt
2023-04-17CA1910053_001_001-202304170855ND
2023-04-17CA1910053_002_002-2023041708302.30 ppt
2023-09-06CA1910053_001_001-2023090609552.00 ppt
2023-09-06CA1910053_002_002-20230906094524.0 ppt
2023-10-05CA1910053_002_002-20231005092011.0 ppt
2023-12-06CA1910053_001_001-2023120609102.00 ppt
2023-12-06CA1910053_001_001-20231206NUL2.00 ppt