Perfluoro(2-ethoxyethane)sulfonic acid
Unalaska Water System
7
Samples
0
Samples exceeding legal limit (MCL)
0
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 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 7 | 0 | ND |
| 2024 | N/A | 0 | 0 | N/A |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2023-06-19 | 104513R | ND |
| 2023-11-13 | 107474P | ND |
| 2023-11-13 | 107475P | ND |
| 2023-12-19 | 109313R | ND |
| 2023-12-19 | 109314R | ND |
| 2023-12-19 | 109315R | ND |
| 2023-12-29 | 110816P | ND |