Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Jblm Mcchord Field

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

7

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
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
20231.81 ppt187ND - 5.30 ppt
2024ND10ND

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
2023-03-214446017ND
2023-03-2144460103.60 ppt
2023-05-1863856701ND
2023-05-1863857001ND
2023-05-1863856601ND
2023-05-18638569014.10 ppt
2023-06-144508230ND
2023-06-28670134015.30 ppt
2023-07-1945384864.90 ppt
2023-09-124538484ND
2023-09-1445384854.90 ppt
2023-10-2345606394.60 ppt
2023-11-1368607301ND
2023-11-1368607201ND
2023-11-13686071015.10 ppt
2023-11-1368607001ND
2023-11-1368606801ND
2023-12-054560638ND
2024-04-1868175401ND