Know Your Environment. Protect Your Health.

Perfluorooctanoic acid (PFOA)

Stillwater

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND30ND
2014ND30ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20211.28 ppt117ND - 4.20 ppt
20222.61 ppt880.710 ppt - 4.10 ppt
20232.30 ppt21210.450 ppt - 4.30 ppt

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
2013-12-19K1313958-003ND
2013-12-19K1313958-001ND
2013-12-19K1313958-005ND
2014-06-05K1405928-003ND
2014-06-05K1405928-001ND
2014-06-05K1405928-005ND
2015-07-21K1508072-001ND
2015-12-09K1514271-001ND
2021-09-1621I0825-02ND
2021-09-1621I0825-01ND
2021-09-1621I0825-034.20 ppt
2021-09-1621I0825-040.620 ppt
2021-09-1621I0825-051.20 ppt
2021-09-1621I0825-060.640 ppt
2021-09-1621I0825-073.20 ppt
2021-09-1621I0825-080.680 ppt
2021-09-1621I0825-09ND
2021-11-3021K1448-02ND
2021-11-3021K1448-013.50 ppt
2022-03-2922C1157-013.70 ppt
2022-05-1022E0781-013.90 ppt
2022-11-2222K1024-060.790 ppt
2022-11-2222K1024-014.10 ppt
2022-11-2222K1024-020.710 ppt
2022-11-2222K1024-033.40 ppt
2022-11-2222K1024-040.740 ppt
2022-11-2222K1024-053.50 ppt
2023-03-0723C0417-013.80 ppt
2023-03-0723C0417-020.450 ppt
2023-03-0723C0417-033.10 ppt
2023-03-0723C0417-040.770 ppt
2023-03-0723C0417-053.10 ppt
2023-03-0723C0417-060.640 ppt
2023-04-2723D1689-051.10 ppt
2023-04-2723D1689-010.660 ppt
2023-04-2723D1689-023.40 ppt
2023-04-2723D1689-031.10 ppt
2023-04-2723D1689-074.20 ppt
2023-04-2723D1689-043.40 ppt
2023-08-1623H1904-073.80 ppt
2023-08-1623H1904-050.860 ppt
2023-08-1623H1904-043.00 ppt
2023-08-1623H1904-030.830 ppt
2023-08-1623H1904-022.70 ppt
2023-08-1623H1904-010.560 ppt
2023-11-1323K0620-014.30 ppt
2023-11-1323K0620-023.20 ppt
2023-11-1323K0620-033.40 ppt