Perfluorohexane sulfonate (PFHXS)
Lanesborough Fire and Water District
Perfluorohexane sulfonate 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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 0.301 ppt | 4 | 2 | ND - 0.694 ppt |
| 2021 | 0.556 ppt | 9 | 7 | ND - 0.860 ppt |
| 2022 | 0.149 ppt | 19 | 5 | ND - 0.880 ppt |
| 2023 | 0.329 ppt | 8 | 5 | ND - 0.670 ppt |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.001 ppt
The EWG Health Guideline of 0.001 ppt for perfluorohexane sulfonate was defined by EPA's toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline harm to the developing immune system.
EPA Maximum Contaminant
Level (MCL): 10 ppt
ppt = parts per trillion
All test results
| Date | Result |
|---|---|
| 2020-12-10 | 0.510 ppt |
| 2020-12-10 | ND |
| 2020-12-18 | ND |
| 2020-12-18 | 0.694 ppt |
| 2021-02-16 | 0.590 ppt |
| 2021-02-16 | ND |
| 2021-04-20 | 0.712 ppt |
| 2021-04-20 | 0.622 ppt |
| 2021-10-18 | 0.580 ppt |
| 2021-10-18 | 0.840 ppt |
| 2021-11-15 | 0.860 ppt |
| 2021-12-13 | 0.800 ppt |
| 2021-12-13 | ND |
| 2022-01-24 | 0.880 ppt |
| 2022-01-24 | 0.480 ppt |
| 2022-02-14 | ND |
| 2022-02-14 | ND |
| 2022-03-14 | ND |
| 2022-03-14 | 0.480 ppt |
| 2022-04-18 | 0.520 ppt |
| 2022-04-18 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-06-20 | ND |
| 2022-07-18 | ND |
| 2022-07-18 | ND |
| 2022-08-15 | ND |
| 2022-08-15 | ND |
| 2022-09-19 | ND |
| 2022-09-19 | ND |
| 2022-10-17 | 0.470 ppt |
| 2022-10-17 | ND |
| 2023-01-23 | 0.470 ppt |
| 2023-01-23 | 0.560 ppt |
| 2023-04-17 | 0.510 ppt |
| 2023-04-17 | ND |
| 2023-07-17 | ND |
| 2023-07-17 | ND |
| 2023-10-16 | 0.670 ppt |
| 2023-10-16 | 0.420 ppt |