Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Stanhope W Department

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

40

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
20195.07 ppt128ND - 9.40 ppt
20204.50 ppt32ND - 8.80 ppt
20215.06 ppt1612ND - 10.00 ppt
20225.63 ppt118ND - 11.0 ppt
20235.22 ppt128ND - 11.0 ppt
20245.67 ppt32ND - 11.4 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
2019-03-1442273729.00 ppt
2019-03-144227369ND
2019-03-1442273555.80 ppt
2019-06-2643373465.70 ppt
2019-06-2643373939.40 ppt
2019-06-264337391ND
2019-09-264437520ND
2019-09-2644375189.20 ppt
2019-09-2644375166.10 ppt
2019-11-1344866826.20 ppt
2019-11-1344866499.40 ppt
2019-11-134486656ND
2020-02-2645752504.70 ppt
2020-02-2645752428.80 ppt
2020-02-264575247ND
2021-03-2348621474.40 ppt
2021-03-234862145ND
2021-03-2348621438.40 ppt
2021-03-3048666154.50 ppt
2021-03-3048665868.90 ppt
2021-03-304866593ND
2021-06-2349375205.10 ppt
2021-06-23493752910.00 ppt
2021-08-1949919714.30 ppt
2021-08-1949919758.40 ppt
2021-08-194991973ND
2021-11-042021110504473.70 ppt
2021-11-042021110504458.90 ppt
2021-12-15810-10222-15.00 ppt
2021-12-15810-10230-1ND
2021-12-15810-10234-19.40 ppt
2022-02-09810-14553-15.40 ppt
2022-02-09810-14542-111.0 ppt
2022-02-09810-14555-1ND
2022-05-25810-25995-19.60 ppt
2022-06-08810-27143-14.90 ppt
2022-07-13810-30776-15.10 ppt
2022-07-13810-30773-111.0 ppt
2022-07-13810-30774-1ND
2022-12-14810-47501-14.90 ppt
2022-12-14810-47503-1ND
2022-12-14810-47504-110.00 ppt
2023-03-08810-56042-110.00 ppt
2023-03-08810-56044-1ND
2023-03-08810-56043-14.60 ppt
2023-06-13810-66147-14.70 ppt
2023-06-13810-66150-19.60 ppt
2023-06-13810-66148-1ND
2023-08-23810-75110-14.80 ppt
2023-08-23810-75116-111.0 ppt
2023-08-23810-75110-3ND
2023-12-13810-88119-16.90 ppt
2023-12-13810-88119-511.0 ppt
2023-12-13810-88119-3ND
2024-03-18114640P5.60 ppt
2024-03-18114641P11.4 ppt
2024-03-18114642PND