Perfluoro(2-ethoxyethane)sulfonic acid
Tualatin Valley Water District
10
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 | 6 | 0 | ND |
| 2024 | ND | 4 | 0 | ND |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2023-07-26 | 380-56681-1 | ND |
| 2023-07-26 | 380-56681-2 | ND |
| 2023-07-26 | 380-56681-3 | ND |
| 2023-10-16 | MDJ0604-01 | ND |
| 2023-10-16 | MDJ0604-02 | ND |
| 2023-10-16 | MDJ0604-03 | ND |
| 2024-04-08 | MED0266-01 | ND |
| 2024-04-08 | MED0266-02 | ND |
| 2024-05-07 | MEE0258-01 | ND |
| 2024-05-07 | MEE0258-02 | ND |