Perfluorohexane sulfonate (PFHXS)
Northbrook Village I / Berlin Ret.
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 | N/A | 0 | 0 | N/A |
| 2021 | 0.958 ppt | 8 | 8 | 0.792 ppt - 1.10 ppt |
| 2022 | 0.726 ppt | 4 | 4 | 0.650 ppt - 0.789 ppt |
| 2023 | 0.814 ppt | 2 | 2 | 0.788 ppt - 0.840 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 |
|---|---|
| 2021-04-14 | 1.10 ppt |
| 2021-04-14 | 1.03 ppt |
| 2021-04-14 | 0.792 ppt |
| 2021-05-05 | 0.844 ppt |
| 2021-05-05 | 0.861 ppt |
| 2021-05-05 | 0.953 ppt |
| 2021-10-25 | 1.05 ppt |
| 2021-10-25 | 1.03 ppt |
| 2022-01-26 | 0.706 ppt |
| 2022-01-26 | 0.789 ppt |
| 2022-07-19 | 0.650 ppt |
| 2022-07-19 | 0.757 ppt |
| 2023-10-30 | 0.788 ppt |
| 2023-10-30 | 0.840 ppt |