Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Borough of Springlake Heights

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND10ND
2014ND30ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
20191.000 ppt42ND - 3.30 ppt
20200.625 ppt41ND - 2.50 ppt
20212.00 ppt112.00 ppt
2022ND10ND
20230.686 ppt71ND - 4.80 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
2019-04-099041013-013.30 ppt
2019-06-059060606-010.700 ppt
2019-08-1470101509001ND
2019-10-2970110214001ND
2020-02-11701215050012.50 ppt
2020-04-0870127811001ND
2020-07-0170136750001ND
2020-11-1870154061001ND
2021-04-05701681670012.00 ppt
2022-04-05L2217635-01ND
2023-01-16100848PND
2023-01-16100449PND
2023-04-10103165PND
2023-04-11L2320554-01ND
2023-07-17105972PND
2023-07-18105973PND
2023-10-09108941P4.80 ppt