Perfluoroheptanoic acid (PFHPA)
Alexandria
Perfluoroheptanoic acid is a member of a group of perfluorinated chemicals used in many consumer products. 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 | ND | 2 | 0 | ND |
| 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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | 0.365 ppt | 40 | 17 | ND - 1.30 ppt |
| 2023 | 0.638 ppt | 39 | 31 | ND - 1.20 ppt |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1,000 ppt
The EWG Health Guideline of 1,000 ppt for perfluoroheptanoic acid was defined by EPA's recommended application of the toxicity value for PFHxA published in the Integrated Risk Information System’s toxicological review. This health guideline harm to fetal growth and child development.
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2013-08-07 | K1308314-001 | ND |
| 2013-12-10 | K1313525-001 | ND |
| 2021-09-27 | 21I1514-02 | ND |
| 2021-09-27 | 21I1514-01 | ND |
| 2021-09-27 | 21I1514-03 | ND |
| 2022-01-13 | 22A0481-02 | ND |
| 2022-01-13 | 22A0481-11 | ND |
| 2022-01-13 | 22A0481-10 | ND |
| 2022-01-13 | 22A0481-09 | ND |
| 2022-01-13 | 22A0481-08 | ND |
| 2022-01-13 | 22A0481-06 | ND |
| 2022-01-13 | 22A0481-01 | ND |
| 2022-01-13 | 22A0481-03 | ND |
| 2022-01-13 | 22A0481-04 | ND |
| 2022-01-13 | 22A0481-07 | ND |
| 2022-01-13 | 22A0481-05 | ND |
| 2022-04-14 | 22D0814-02 | ND |
| 2022-04-14 | 22D0814-11 | ND |
| 2022-04-14 | 22D0814-10 | ND |
| 2022-04-14 | 22D0814-09 | ND |
| 2022-04-14 | 22D0814-07 | 0.940 ppt |
| 2022-04-14 | 22D0814-03 | 1.000 ppt |
| 2022-04-14 | 22D0814-04 | 1.10 ppt |
| 2022-04-14 | 22D0814-05 | 1.30 ppt |
| 2022-04-14 | 22D0814-08 | ND |
| 2022-04-14 | 22D0814-06 | ND |
| 2022-07-26 | 22G1927-02 | 0.650 ppt |
| 2022-07-26 | 22G1927-11 | ND |
| 2022-07-26 | 22G1927-10 | 0.500 ppt |
| 2022-07-26 | 22G1927-09 | 1.20 ppt |
| 2022-07-26 | 22G1927-07 | 0.540 ppt |
| 2022-07-26 | 22G1927-03 | 1.000 ppt |
| 2022-07-26 | 22G1927-04 | 1.20 ppt |
| 2022-07-26 | 22G1927-05 | ND |
| 2022-07-26 | 22G1927-08 | ND |
| 2022-07-26 | 22G1927-06 | 0.790 ppt |
| 2022-10-10 | 22J0370-02 | 0.720 ppt |
| 2022-10-10 | 22J0370-10 | ND |
| 2022-10-10 | 22J0370-09 | 0.580 ppt |
| 2022-10-10 | 22J0370-08 | ND |
| 2022-10-10 | 22J0370-06 | 0.860 ppt |
| 2022-10-10 | 22J0370-03 | 0.870 ppt |
| 2022-10-10 | 22J0370-04 | 0.950 ppt |
| 2022-10-10 | 22J0370-07 | 0.400 ppt |
| 2022-10-10 | 22J0370-05 | ND |
| 2023-01-10 | 23A0296-03 | 1.10 ppt |
| 2023-01-10 | 23A0296-11 | ND |
| 2023-01-10 | 23A0296-10 | 0.420 ppt |
| 2023-01-10 | 23A0296-09 | ND |
| 2023-01-10 | 23A0296-07 | 0.770 ppt |
| 2023-01-10 | 23A0296-02 | 0.640 ppt |
| 2023-01-10 | 23A0296-04 | 1.20 ppt |
| 2023-01-10 | 23A0296-05 | 0.880 ppt |
| 2023-01-10 | 23A0296-08 | 0.380 ppt |
| 2023-01-10 | 23A0296-06 | ND |
| 2023-04-24 | 23D1407-02 | 0.580 ppt |
| 2023-04-24 | 23D1407-10 | 0.370 ppt |
| 2023-04-24 | 23D1407-08 | ND |
| 2023-04-24 | 23D1407-06 | ND |
| 2023-04-24 | 23D1407-04 | 1.20 ppt |
| 2023-04-24 | 23D1407-07 | 1.20 ppt |
| 2023-04-24 | 23D1407-03 | 0.930 ppt |
| 2023-04-24 | 23D1407-05 | 1.20 ppt |
| 2023-05-16 | 23E1947-02 | 0.530 ppt |
| 2023-07-11 | 23G0591-04 | 1.20 ppt |
| 2023-07-11 | 23G0591-05 | ND |
| 2023-07-11 | 23G0591-06 | 0.960 ppt |
| 2023-07-11 | 23G0591-01 | 0.630 ppt |
| 2023-07-11 | 23G0591-07 | 0.470 ppt |
| 2023-07-11 | 23G0591-02 | 1.10 ppt |
| 2023-07-11 | 23G0591-08 | ND |
| 2023-07-11 | 23G0591-09 | 0.530 ppt |
| 2023-07-11 | 23G0591-10 | 0.340 ppt |
| 2023-07-11 | 23G0591-03 | 0.990 ppt |
| 2023-10-09 | 23J0442-03 | 0.920 ppt |
| 2023-10-09 | 23J0442-04 | 1.000 ppt |
| 2023-10-09 | 23J0442-05 | 1.20 ppt |
| 2023-10-09 | 23J0442-06 | 0.290 ppt |
| 2023-10-09 | 23J0442-07 | 0.990 ppt |
| 2023-10-09 | 23J0442-08 | 0.720 ppt |
| 2023-10-09 | 23J0442-09 | ND |
| 2023-10-09 | 23J0442-10 | 0.620 ppt |
| 2023-10-09 | 23J0442-11 | 0.340 ppt |
| 2023-10-09 | 23J0442-02 | 1.20 ppt |