Perfluorooctanoic acid (PFOA)
Devens Massdevelopment
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 9.58 ppt | 7 | 7 | 4.60 ppt - 21.0 ppt |
| 2019 | 1.80 ppt | 30 | 8 | ND - 11.3 ppt |
| 2020 | 2.06 ppt | 1 | 1 | 2.06 ppt |
| 2021 | 2.94 ppt | 198 | 121 | ND - 20.9 ppt |
| 2022 | 1.08 ppt | 171 | 54 | ND - 18.0 ppt |
| 2023 | 0.819 ppt | 129 | 29 | ND - 19.0 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 | Result |
|---|---|
| 2018-02-27 | 21.0 ppt |
| 2018-05-14 | 10.00 ppt |
| 2018-05-14 | 4.60 ppt |
| 2018-08-03 | 9.97 ppt |
| 2018-08-03 | 5.64 ppt |
| 2018-10-25 | 10.7 ppt |
| 2018-10-25 | 5.12 ppt |
| 2019-02-20 | 11.3 ppt |
| 2019-02-20 | 6.81 ppt |
| 2019-05-21 | 9.33 ppt |
| 2019-05-21 | 9.25 ppt |
| 2019-08-02 | ND |
| 2019-08-20 | 8.42 ppt |
| 2019-08-20 | ND |
| 2019-09-03 | ND |
| 2019-09-03 | ND |
| 2019-09-18 | ND |
| 2019-09-18 | ND |
| 2019-09-25 | ND |
| 2019-10-02 | ND |
| 2019-10-02 | 3.00 ppt |
| 2019-10-09 | ND |
| 2019-10-15 | ND |
| 2019-10-15 | ND |
| 2019-10-23 | ND |
| 2019-10-30 | ND |
| 2019-10-30 | ND |
| 2019-11-06 | ND |
| 2019-11-13 | ND |
| 2019-11-13 | 1.54 ppt |
| 2019-11-20 | ND |
| 2019-11-25 | ND |
| 2019-11-25 | ND |
| 2019-12-04 | ND |
| 2019-12-18 | ND |
| 2019-12-23 | 4.44 ppt |
| 2019-12-23 | ND |
| 2020-07-14 | 2.06 ppt |
| 2021-01-06 | ND |
| 2021-01-06 | 2.10 ppt |
| 2021-01-06 | ND |
| 2021-01-06 | 3.40 ppt |
| 2021-01-06 | ND |
| 2021-01-06 | 9.60 ppt |
| 2021-01-06 | 19.3 ppt |
| 2021-01-06 | 10.2 ppt |
| 2021-01-06 | 0.840 ppt |
| 2021-01-06 | 1.000 ppt |
| 2021-01-06 | 2.80 ppt |
| 2021-01-06 | ND |
| 2021-01-06 | ND |
| 2021-01-06 | 9.70 ppt |
| 2021-01-13 | 2.30 ppt |
| 2021-01-13 | ND |
| 2021-01-13 | ND |
| 2021-01-13 | ND |
| 2021-01-13 | ND |
| 2021-01-13 | 1.70 ppt |
| 2021-01-13 | 6.50 ppt |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | 9.06 ppt |
| 2021-02-03 | ND |
| 2021-02-03 | ND |
| 2021-02-03 | 1.56 ppt |
| 2021-02-03 | 1.19 ppt |
| 2021-02-03 | 3.62 ppt |
| 2021-02-03 | 20.3 ppt |
| 2021-02-03 | ND |
| 2021-02-03 | 1.11 ppt |
| 2021-02-17 | ND |
| 2021-02-17 | ND |
| 2021-02-17 | 20.9 ppt |
| 2021-02-24 | 7.23 ppt |
| 2021-02-24 | ND |
| 2021-02-24 | ND |
| 2021-02-24 | 1.32 ppt |
| 2021-02-24 | ND |
| 2021-02-24 | 2.28 ppt |
| 2021-02-24 | ND |
| 2021-03-02 | 1.33 ppt |
| 2021-03-02 | ND |
| 2021-03-02 | 0.964 ppt |
| 2021-03-02 | 18.7 ppt |
| 2021-03-02 | ND |
| 2021-03-02 | 1.60 ppt |
| 2021-03-02 | ND |
| 2021-03-02 | ND |
| 2021-03-02 | 0.999 ppt |
| 2021-03-10 | 6.36 ppt |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-10 | ND |
| 2021-03-17 | 17.9 ppt |
| 2021-03-17 | ND |
| 2021-03-17 | 1.71 ppt |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | 0.692 ppt |
| 2021-03-24 | 5.83 ppt |
| 2021-03-24 | ND |
| 2021-03-24 | ND |
| 2021-03-24 | 1.54 ppt |
| 2021-03-31 | 15.6 ppt |
| 2021-03-31 | ND |
| 2021-03-31 | 2.35 ppt |
| 2021-03-31 | ND |
| 2021-03-31 | ND |
| 2021-04-08 | ND |
| 2021-04-08 | ND |
| 2021-04-08 | ND |
| 2021-04-08 | ND |
| 2021-04-19 | ND |
| 2021-06-02 | 0.686 ppt |
| 2021-06-02 | 1.60 ppt |
| 2021-06-02 | 1.97 ppt |
| 2021-06-02 | ND |
| 2021-06-02 | ND |
| 2021-06-02 | 6.52 ppt |
| 2021-06-02 | 1.02 ppt |
| 2021-06-09 | 3.11 ppt |
| 2021-06-09 | 2.80 ppt |
| 2021-06-09 | ND |
| 2021-06-16 | 5.59 ppt |
| 2021-06-16 | 1.54 ppt |
| 2021-06-16 | ND |
| 2021-06-16 | ND |
| 2021-06-16 | 0.703 ppt |
| 2021-06-16 | 1.44 ppt |
| 2021-06-16 | 1.000 ppt |
| 2021-06-23 | ND |
| 2021-06-23 | 3.14 ppt |
| 2021-06-23 | 1.14 ppt |
| 2021-06-23 | ND |
| 2021-06-23 | 16.4 ppt |
| 2021-07-07 | 0.783 ppt |
| 2021-07-07 | 3.41 ppt |
| 2021-07-07 | ND |
| 2021-07-07 | 4.29 ppt |
| 2021-07-07 | 7.68 ppt |
| 2021-07-07 | 5.15 ppt |
| 2021-07-07 | 2.46 ppt |
| 2021-07-07 | 20.4 ppt |
| 2021-07-07 | 9.86 ppt |
| 2021-07-07 | 2.53 ppt |
| 2021-07-07 | 6.60 ppt |
| 2021-07-07 | 7.84 ppt |
| 2021-07-07 | 3.61 ppt |
| 2021-07-07 | 9.74 ppt |
| 2021-07-14 | 0.887 ppt |
| 2021-07-14 | 7.02 ppt |
| 2021-07-14 | 1.38 ppt |
| 2021-07-14 | ND |
| 2021-07-14 | 0.619 ppt |
| 2021-07-14 | ND |
| 2021-07-21 | 19.1 ppt |
| 2021-07-21 | ND |
| 2021-07-21 | ND |
| 2021-07-21 | ND |
| 2021-07-21 | 5.71 ppt |
| 2021-07-28 | 1.78 ppt |
| 2021-07-28 | 1.01 ppt |
| 2021-07-28 | 0.799 ppt |
| 2021-07-28 | ND |
| 2021-07-28 | 5.87 ppt |
| 2021-07-28 | ND |
| 2021-07-28 | 2.53 ppt |
| 2021-08-05 | 0.841 ppt |
| 2021-08-05 | 3.44 ppt |
| 2021-08-05 | 2.63 ppt |
| 2021-08-05 | 2.80 ppt |
| 2021-08-11 | 2.05 ppt |
| 2021-08-11 | ND |
| 2021-08-11 | ND |
| 2021-08-11 | 1.39 ppt |
| 2021-08-11 | 4.83 ppt |
| 2021-08-11 | 0.700 ppt |
| 2021-08-11 | 2.05 ppt |
| 2021-08-11 | ND |
| 2021-08-11 | 4.83 ppt |
| 2021-08-18 | ND |
| 2021-08-18 | 1.12 ppt |
| 2021-08-18 | 0.934 ppt |
| 2021-08-18 | 18.1 ppt |
| 2021-08-18 | 0.540 ppt |
| 2021-08-25 | 1.64 ppt |
| 2021-08-25 | ND |
| 2021-08-25 | 2.19 ppt |
| 2021-08-25 | 2.85 ppt |
| 2021-08-25 | 5.28 ppt |
| 2021-08-25 | ND |
| 2021-08-25 | 1.13 ppt |
| 2021-09-08 | 2.48 ppt |
| 2021-09-08 | ND |
| 2021-09-08 | 1.28 ppt |
| 2021-09-08 | ND |
| 2021-09-08 | ND |
| 2021-09-08 | 6.05 ppt |
| 2021-10-06 | ND |
| 2021-10-06 | ND |
| 2021-10-06 | 10.1 ppt |
| 2021-10-06 | 8.74 ppt |
| 2021-10-06 | 6.26 ppt |
| 2021-10-06 | 0.857 ppt |
| 2021-10-06 | 1.47 ppt |
| 2021-10-06 | 4.29 ppt |
| 2021-10-06 | 1.36 ppt |
| 2021-10-06 | 1.85 ppt |
| 2021-10-06 | 8.11 ppt |
| 2021-10-06 | 5.35 ppt |
| 2021-10-06 | 1.90 ppt |
| 2021-10-06 | 2.61 ppt |
| 2021-10-06 | 1.87 ppt |
| 2021-10-06 | 7.56 ppt |
| 2021-10-06 | 5.47 ppt |
| 2021-10-06 | 1.14 ppt |
| 2021-10-06 | 10.00 ppt |
| 2021-10-06 | 4.04 ppt |
| 2021-12-02 | 5.70 ppt |
| 2021-12-02 | 6.14 ppt |
| 2021-12-02 | 10.3 ppt |
| 2021-12-02 | 4.85 ppt |
| 2021-12-02 | 3.87 ppt |
| 2021-12-02 | ND |
| 2021-12-02 | 4.49 ppt |
| 2021-12-08 | ND |
| 2021-12-08 | 1.61 ppt |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2021-12-08 | ND |
| 2022-01-05 | 1.02 ppt |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | 17.5 ppt |
| 2022-01-05 | ND |
| 2022-01-05 | ND |
| 2022-01-05 | 1.36 ppt |
| 2022-01-05 | ND |
| 2022-01-12 | 5.03 ppt |
| 2022-01-12 | 3.52 ppt |
| 2022-01-12 | 8.44 ppt |
| 2022-01-12 | 0.821 ppt |
| 2022-01-12 | 1.98 ppt |
| 2022-01-12 | 4.53 ppt |
| 2022-01-12 | 8.34 ppt |
| 2022-01-12 | 5.37 ppt |
| 2022-02-02 | ND |
| 2022-02-02 | 1.17 ppt |
| 2022-02-02 | ND |
| 2022-02-02 | 1.19 ppt |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-02 | ND |
| 2022-02-09 | 1.07 ppt |
| 2022-02-09 | 5.09 ppt |
| 2022-02-09 | 7.88 ppt |
| 2022-02-09 | 4.20 ppt |
| 2022-02-09 | 5.10 ppt |
| 2022-02-09 | 4.04 ppt |
| 2022-02-09 | 2.01 ppt |
| 2022-03-09 | 1.20 ppt |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-09 | ND |
| 2022-03-16 | 3.50 ppt |
| 2022-03-16 | 6.20 ppt |
| 2022-03-16 | 5.20 ppt |
| 2022-03-16 | 1.90 ppt |
| 2022-03-16 | ND |
| 2022-03-16 | 5.00 ppt |
| 2022-03-16 | 6.50 ppt |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | 1.000 ppt |
| 2022-04-13 | 0.810 ppt |
| 2022-04-13 | 1.40 ppt |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-13 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | ND |
| 2022-04-19 | 3.50 ppt |
| 2022-05-04 | ND |
| 2022-05-04 | 1.70 ppt |
| 2022-05-04 | ND |
| 2022-05-04 | 2.40 ppt |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | ND |
| 2022-05-04 | 0.970 ppt |
| 2022-05-16 | ND |
| 2022-05-16 | 3.30 ppt |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-05-27 | 18.0 ppt |
| 2022-05-27 | ND |
| 2022-06-08 | 1.60 ppt |
| 2022-06-08 | 1.60 ppt |
| 2022-06-08 | 2.40 ppt |
| 2022-06-08 | ND |
| 2022-06-08 | 0.610 ppt |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-08 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-06-14 | 1.10 ppt |
| 2022-06-14 | ND |
| 2022-06-14 | ND |
| 2022-07-13 | 2.50 ppt |
| 2022-07-13 | ND |
| 2022-07-13 | ND |
| 2022-07-13 | 1.50 ppt |
| 2022-07-13 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-07-20 | ND |
| 2022-08-03 | ND |
| 2022-08-03 | 2.40 ppt |
| 2022-08-03 | ND |
| 2022-08-03 | ND |
| 2022-08-03 | ND |
| 2022-08-03 | 1.30 ppt |
| 2022-08-03 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-08-18 | 3.10 ppt |
| 2022-08-18 | ND |
| 2022-08-18 | ND |
| 2022-09-01 | ND |
| 2022-09-01 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | 1.50 ppt |
| 2022-09-07 | 1.60 ppt |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-07 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-09-14 | ND |
| 2022-10-05 | 1.50 ppt |
| 2022-10-05 | ND |
| 2022-10-05 | ND |
| 2022-10-05 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | 2.20 ppt |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-10-12 | ND |
| 2022-11-02 | ND |
| 2022-11-02 | ND |
| 2022-11-02 | ND |
| 2022-11-02 | ND |
| 2022-11-02 | 2.00 ppt |
| 2022-11-02 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | ND |
| 2022-11-10 | 3.10 ppt |
| 2022-11-10 | ND |
| 2022-12-07 | 0.880 ppt |
| 2022-12-07 | 0.880 ppt |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2022-12-07 | ND |
| 2023-01-11 | ND |
| 2023-01-11 | 19.0 ppt |
| 2023-01-11 | ND |
| 2023-01-18 | 1.50 ppt |
| 2023-01-18 | 0.540 ppt |
| 2023-01-18 | 1.10 ppt |
| 2023-01-18 | 9.10 ppt |
| 2023-01-18 | ND |
| 2023-01-18 | ND |
| 2023-01-18 | ND |
| 2023-01-18 | ND |
| 2023-02-03 | ND |
| 2023-02-03 | ND |
| 2023-02-14 | 4.10 ppt |
| 2023-02-14 | ND |
| 2023-02-14 | ND |
| 2023-02-14 | 0.930 ppt |
| 2023-02-14 | 1.60 ppt |
| 2023-02-14 | ND |
| 2023-02-14 | ND |
| 2023-02-24 | ND |
| 2023-02-24 | ND |
| 2023-02-24 | 12.0 ppt |
| 2023-02-24 | ND |
| 2023-02-24 | 2.60 ppt |
| 2023-03-01 | ND |
| 2023-03-01 | ND |
| 2023-03-01 | 1.20 ppt |
| 2023-03-01 | ND |
| 2023-03-01 | ND |
| 2023-03-01 | ND |
| 2023-03-08 | 2.90 ppt |
| 2023-03-08 | 1.70 ppt |
| 2023-03-08 | ND |
| 2023-03-08 | ND |
| 2023-03-08 | 1.10 ppt |
| 2023-03-08 | ND |
| 2023-03-08 | ND |
| 2023-04-04 | ND |
| 2023-04-04 | ND |
| 2023-04-04 | ND |
| 2023-04-06 | ND |
| 2023-04-06 | 0.843 ppt |
| 2023-04-06 | 1.56 ppt |
| 2023-04-06 | ND |
| 2023-04-06 | 2.50 ppt |
| 2023-04-06 | ND |
| 2023-04-06 | ND |
| 2023-04-19 | ND |
| 2023-04-19 | 2.29 ppt |
| 2023-04-19 | ND |
| 2023-04-19 | ND |
| 2023-04-19 | ND |
| 2023-04-19 | ND |
| 2023-04-28 | ND |
| 2023-04-28 | ND |
| 2023-04-28 | 14.4 ppt |
| 2023-05-03 | ND |
| 2023-05-03 | 2.22 ppt |
| 2023-05-03 | ND |
| 2023-05-12 | ND |
| 2023-05-26 | ND |
| 2023-06-07 | ND |
| 2023-06-07 | ND |
| 2023-06-07 | 2.55 ppt |
| 2023-06-07 | ND |
| 2023-06-09 | ND |
| 2023-06-23 | ND |
| 2023-07-07 | ND |
| 2023-07-11 | ND |
| 2023-07-11 | ND |
| 2023-07-11 | ND |
| 2023-07-11 | ND |
| 2023-07-18 | ND |
| 2023-07-21 | 0.967 ppt |
| 2023-08-04 | ND |
| 2023-08-08 | ND |
| 2023-08-08 | ND |
| 2023-08-08 | ND |
| 2023-08-08 | 2.01 ppt |
| 2023-08-08 | 1.19 ppt |
| 2023-08-18 | ND |
| 2023-09-01 | ND |
| 2023-09-01 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | ND |
| 2023-09-19 | 2.40 ppt |
| 2023-09-19 | ND |
| 2023-09-29 | ND |
| 2023-09-29 | ND |
| 2023-10-04 | ND |
| 2023-10-04 | ND |
| 2023-10-05 | 7.70 ppt |
| 2023-10-05 | ND |
| 2023-10-13 | ND |
| 2023-10-19 | 3.30 ppt |
| 2023-10-19 | ND |
| 2023-10-19 | ND |
| 2023-10-19 | ND |
| 2023-10-27 | ND |
| 2023-10-27 | ND |
| 2023-11-07 | ND |
| 2023-11-07 | 2.20 ppt |
| 2023-11-07 | ND |
| 2023-11-07 | ND |
| 2023-11-09 | ND |
| 2023-11-09 | ND |
| 2023-11-09 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-11-29 | ND |
| 2023-12-08 | ND |
| 2023-12-14 | ND |
| 2023-12-14 | ND |
| 2023-12-14 | ND |
| 2023-12-14 | ND |
| 2023-12-14 | ND |
| 2023-12-14 | ND |
| 2023-12-14 | ND |
| 2023-12-22 | ND |
| 2023-12-22 | 0.110 ppt |