Perfluorooctanoic acid (PFOA)
Brooklyn Center
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.490 ppt | 1 | 1 | 0.490 ppt |
| 2022 | 0.595 ppt | 13 | 10 | ND - 1.20 ppt |
| 2023 | 0.734 ppt | 26 | 24 | ND - 1.40 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 |
|---|---|---|
| 2014-01-28 | K1401044-001 | ND |
| 2014-01-28 | K1401044-005 | ND |
| 2014-01-28 | K1401044-003 | ND |
| 2015-06-25 | K1507081-003 | ND |
| 2015-06-25 | K1507081-005 | ND |
| 2015-06-25 | K1507081-001 | ND |
| 2021-06-09 | 21F0561-01 | 0.490 ppt |
| 2022-06-01 | 22F0085-01 | ND |
| 2022-06-01 | 22F0085-03 | 1.10 ppt |
| 2022-06-01 | 22F0085-04 | 1.10 ppt |
| 2022-06-01 | 22F0085-05 | ND |
| 2022-11-02 | 22K0191-05 | ND |
| 2022-11-02 | 22K0191-01 | 0.520 ppt |
| 2022-11-02 | 22K0191-02 | 0.550 ppt |
| 2022-11-02 | 22K0191-03 | 1.20 ppt |
| 2022-11-02 | 22K0191-04 | 0.860 ppt |
| 2022-11-02 | 22K0191-06 | 0.960 ppt |
| 2022-11-02 | 22K0191-07 | 0.400 ppt |
| 2022-11-02 | 22K0191-08 | 0.470 ppt |
| 2022-11-02 | 22K0191-09 | 0.570 ppt |
| 2023-03-16 | 23C0815-04 | 0.310 ppt |
| 2023-03-16 | 23C0815-01 | 0.900 ppt |
| 2023-03-16 | 23C0815-03 | 1.20 ppt |
| 2023-03-16 | 23C0815-06 | 0.400 ppt |
| 2023-03-30 | 23C1366-01 | 0.630 ppt |
| 2023-03-30 | 23C1366-02 | 1.40 ppt |
| 2023-03-30 | 23C1366-03 | 0.520 ppt |
| 2023-03-30 | 23C1366-04 | 1.40 ppt |
| 2023-06-06 | 23F0377-02 | 1.20 ppt |
| 2023-06-06 | 23F0377-01 | 0.250 ppt |
| 2023-06-06 | 23F0377-03 | ND |
| 2023-06-06 | 23F0377-04 | 0.840 ppt |
| 2023-06-06 | 23F0377-05 | 0.760 ppt |
| 2023-06-06 | 23F0377-06 | 0.950 ppt |
| 2023-06-06 | 23F0377-07 | 0.570 ppt |
| 2023-07-05 | 23G0104-02 | 1.30 ppt |
| 2023-07-05 | 23G0104-01 | 0.720 ppt |
| 2023-09-13 | 23I0615-06 | 1.30 ppt |
| 2023-09-13 | 23I0615-07 | 0.440 ppt |
| 2023-09-13 | 23I0615-08 | 0.270 ppt |
| 2023-09-13 | 23I0615-09 | 0.370 ppt |
| 2023-09-13 | 23I0615-05 | ND |
| 2023-09-13 | 23I0615-04 | 0.890 ppt |
| 2023-09-13 | 23I0615-03 | 1.10 ppt |
| 2023-09-13 | 23I0615-02 | 0.400 ppt |
| 2023-09-13 | 23I0615-01 | 0.970 ppt |