Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Shakopee

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.

 

84

Samples

0

Samples exceeding legal limit (MCL)

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND50ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.780 ppt156ND - 2.80 ppt
20220.781 ppt3419ND - 3.80 ppt
20231.76 ppt25250.390 ppt - 4.20 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
2014-10-22K1412093-003ND
2014-10-22K1412093-007ND
2014-10-22K1412093-001ND
2014-10-22K1412093-005ND
2014-12-09K1413969-001ND
2015-04-21K1504292-005ND
2015-04-21K1504292-001ND
2015-04-21K1504292-007ND
2015-04-21K1504292-009ND
2015-04-21K1504292-003ND
2021-09-0821I0356-02ND
2021-09-0821I0356-15ND
2021-09-0821I0356-142.80 ppt
2021-09-0821I0356-12ND
2021-09-0821I0356-011.60 ppt
2021-09-0821I0356-031.60 ppt
2021-09-0821I0356-041.20 ppt
2021-09-0821I0356-051.80 ppt
2021-09-0821I0356-062.70 ppt
2021-09-0821I0356-07ND
2021-09-0821I0356-08ND
2021-09-0821I0356-09ND
2021-09-0821I0356-10ND
2021-09-0821I0356-11ND
2021-09-0821I0356-13ND
2022-07-2522G1843-02ND
2022-08-1722H1599-10ND
2022-08-1722H1599-010.770 ppt
2022-08-1722H1599-021.10 ppt
2022-08-1722H1599-030.680 ppt
2022-08-1722H1599-043.80 ppt
2022-08-1722H1599-05ND
2022-08-1722H1599-061.10 ppt
2022-08-1722H1599-072.20 ppt
2022-08-1722H1599-080.390 ppt
2022-08-1722H1599-090.430 ppt
2022-08-1722H1599-11ND
2022-08-1722H1599-12ND
2022-08-1722H1599-13ND
2022-08-1722H1599-14ND
2022-08-1722H1599-150.380 ppt
2022-08-1722H1599-16ND
2022-10-1022J0335-050.580 ppt
2022-10-1022J0335-012.90 ppt
2022-10-1022J0335-020.950 ppt
2022-10-1022J0335-031.40 ppt
2022-10-1022J0335-180.360 ppt
2022-10-1022J0335-16ND
2022-10-1022J0335-042.90 ppt
2022-10-1022J0335-060.500 ppt
2022-10-1022J0335-071.80 ppt
2022-10-1022J0335-080.610 ppt
2022-10-1022J0335-093.70 ppt
2022-10-1022J0335-10ND
2022-10-1022J0335-12ND
2022-10-1022J0335-13ND
2022-10-1022J0335-14ND
2022-10-1022J0335-15ND
2022-10-1022J0335-17ND
2023-01-1023A0219-012.40 ppt
2023-01-1023A0219-022.20 ppt
2023-01-1023A0219-032.30 ppt
2023-01-1023A0219-041.50 ppt
2023-01-1023A0219-051.80 ppt
2023-01-1023A0219-060.610 ppt
2023-01-1023A0219-074.20 ppt
2023-05-2423E2661-040.750 ppt
2023-05-2423E2661-010.590 ppt
2023-05-2423E2661-020.390 ppt
2023-05-2423E2661-093.60 ppt
2023-05-2423E2661-082.20 ppt
2023-05-2423E2661-071.90 ppt
2023-05-2423E2661-061.90 ppt
2023-05-2423E2661-051.60 ppt
2023-05-2423E2661-032.50 ppt
2023-08-1623H1896-050.430 ppt
2023-08-1623H1896-060.410 ppt
2023-08-1623H1896-071.80 ppt
2023-08-1623H1896-080.600 ppt
2023-08-1623H1896-094.10 ppt
2023-08-1623H1896-042.40 ppt
2023-08-1623H1896-031.50 ppt
2023-08-1623H1896-021.10 ppt
2023-08-1623H1896-011.20 ppt