Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Satsuma Water Works

Perfluorooctane sulfonate (PFOS) 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
20205.75 ppt41ND - 23.0 ppt
2021N/A00N/A
20221.05 ppt21ND - 2.10 ppt
20231.13 ppt42ND - 2.30 ppt
2024ND20ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppt

The EWG Health Guideline of 0.3 ppt for PFOS was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2020-05-2620155820001_PFAS23.0 ppt
2020-05-2620155820002_PFASND
2020-07-1420162602001_PFASND
2020-07-1420162602002_PFASND
2022-08-1120252576001_PFAS2.10 ppt
2022-10-1820258923001_PFASND
2023-03-2020272490001_PFASND
2023-06-2620281093001_PFAS2.20 ppt
2023-07-1120282277001_PFAS2.30 ppt
2023-11-2920298489001_PFASND
2024-06-04117273PND
2024-06-04117274PND