Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Plymouth

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

35

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
20211.24 ppt220.980 ppt - 1.50 ppt
20220.752 ppt139ND - 2.00 ppt
20230.640 ppt3624ND - 1.90 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
2021-06-0421F0300-030.980 ppt
2021-06-0421F0300-011.50 ppt
2022-06-0322F0215-01ND
2022-06-0322F0215-030.810 ppt
2022-06-0322F0215-040.930 ppt
2022-06-0322F0215-051.30 ppt
2022-09-0822I0502-010.780 ppt
2022-11-0422K0352-060.840 ppt
2022-11-0422K0352-08ND
2022-11-0422K0352-070.960 ppt
2022-11-0422K0352-052.00 ppt
2022-11-0422K0352-041.50 ppt
2022-11-0422K0352-03ND
2022-11-0422K0352-02ND
2022-11-0422K0352-010.650 ppt
2023-05-2523E2766-110.810 ppt
2023-05-2532301773-3ND
2023-05-2532301773-1ND
2023-05-2523E2766-161.50 ppt
2023-05-2523E2766-15ND
2023-05-2523E2766-141.000 ppt
2023-05-2523E2766-130.760 ppt
2023-05-2523E2766-12ND
2023-05-2523E2766-100.500 ppt
2023-05-2523E2766-08ND
2023-05-2523E2766-071.60 ppt
2023-05-2523E2766-06ND
2023-05-2523E2766-050.800 ppt
2023-05-2523E2766-041.90 ppt
2023-05-2523E2766-031.20 ppt
2023-05-2523E2766-010.760 ppt
2023-05-2523E2766-020.580 ppt
2023-05-2523E2766-090.470 ppt
2023-09-1523I0866-08ND
2023-09-1523I0866-161.60 ppt
2023-09-1523I0866-150.350 ppt
2023-09-1523I0866-141.10 ppt
2023-09-1523I0866-131.000 ppt
2023-09-1523I0866-12ND
2023-09-1523I0866-110.930 ppt
2023-09-1523I0866-100.510 ppt
2023-09-1523I0866-090.520 ppt
2023-09-1523I0866-071.10 ppt
2023-09-1523I0866-06ND
2023-09-1523I0866-051.10 ppt
2023-09-1523I0866-041.10 ppt
2023-09-1523I0866-020.860 ppt
2023-09-1523I0866-011.000 ppt
2023-09-2523I1301-01ND
2023-12-1132304198-1ND
2023-12-1132304198-3ND