Know Your Environment. Protect Your Health.

Perfluorooctanoic acid (PFOA)

Silverdale Water District 16

Perfluorooctanoic acid (PFOA) is a member of a group of perfluorinated chemicals used in many consumer products. PFOA 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

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
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND110ND
2024ND100ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.09 ppt

The EWG Health Guideline of 0.09 ppt for PFOA was 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
2023-02-014407941ND
2023-02-014407943ND
2023-02-014407936ND
2023-02-014407938ND
2023-02-014407935ND
2023-02-014407937ND
2023-02-014407939ND
2023-02-014407942ND
2023-02-014407940ND
2023-02-014407934ND
2023-10-164540125ND
2024-04-23380-93110-1ND
2024-04-23380-93110-2ND
2024-04-23380-93110-3ND
2024-04-23380-93110-4ND
2024-04-23380-93110-5ND
2024-04-23380-93110-6ND
2024-04-23380-93110-7ND
2024-04-29380-93589-1ND
2024-04-29380-93589-2ND
2024-04-29380-93589-3ND