Know Your Environment. Protect Your Health.

Total PFOS and PFOA

Deforest Waterworks

Perfluorooctane sulfonate (PFOS) and Perfluorooctanoic acid (PFOA) are a member of a group of perfluorinated chemicals used in many consumer products. PFOS, 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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND40ND
2023ND120ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.007 ppt

EWG applied the health guideline of 0.09 ppt, defined by the California Office of Environmental Health Hazard Assessment as a public health goal for PFOA, to PFOS and PFOA combined. This health guideline protects against cancer.

ppt = parts per trillion

All test results

Date Lab ID Result
2022-05-11619082001ND
2022-05-11619083001ND
2022-05-12619340001ND
2022-05-16619645001ND
2023-03-07667076001ND
2023-03-07667074001ND
2023-03-07667077001ND
2023-03-07667075001ND
2023-05-30680923001ND
2023-05-30680924001ND
2023-05-30680922001ND
2023-05-30680925001ND
2023-08-07693183001ND
2023-08-07693184001ND
2023-08-07693182001ND
2023-08-09693935001ND