Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Edina

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

17

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
20210.192 ppt122ND - 1.20 ppt
20221.19 ppt75ND - 4.10 ppt
20230.510 ppt2310ND - 2.10 ppt

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
2021-09-1721I0952-02ND
2021-09-1721I0952-03ND
2021-09-1721I0952-04ND
2021-09-1721I0952-051.20 ppt
2021-09-1721I0952-06ND
2021-09-1721I0952-071.10 ppt
2021-09-1721I0952-08ND
2021-09-1721I0952-09ND
2021-09-1721I0952-10ND
2021-09-1721I0952-11ND
2021-09-1721I0952-12ND
2021-09-1721I0952-01ND
2022-11-2222K1040-011.30 ppt
2022-11-2222K1040-071.20 ppt
2022-11-2222K1040-06ND
2022-11-2222K1040-05ND
2022-11-2222K1040-044.10 ppt
2022-11-2222K1040-031.30 ppt
2022-11-2222K1040-020.400 ppt
2023-03-2132300897-9ND
2023-03-2132300897-7ND
2023-03-2123C1009-031.50 ppt
2023-03-2132300897-5ND
2023-03-2132300897-3ND
2023-03-2132300897-1ND
2023-03-2123C1009-020.450 ppt
2023-03-2123C1009-010.980 ppt
2023-06-2823F2165-042.10 ppt
2023-06-2823F2165-031.60 ppt
2023-06-2823F2165-020.410 ppt
2023-06-2823F2165-010.890 ppt
2023-06-2832302194-1ND
2023-06-2832302194-3ND
2023-09-2832303341-9ND
2023-09-2832303341-7ND
2023-09-2832303341-5ND
2023-09-2832303341-3ND
2023-09-2832303341-1ND
2023-09-2823I1583-061.40 ppt
2023-09-2823I1583-041.30 ppt
2023-09-2823I1583-02ND
2023-09-2823I1583-011.10 ppt