Perfluoro(2-ethoxyethane)sulfonic acid
King County Water District 111
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 | N/A | 0 | 0 | N/A |
| 2024 | ND | 7 | 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 |
|---|---|---|
| 2024-04-22 | K2404118-009 | ND |
| 2024-04-22 | K2404118-001 | ND |
| 2024-04-22 | K2404118-003 | ND |
| 2024-04-22 | K2404118-005 | ND |
| 2024-04-22 | K2404118-007 | ND |
| 2024-07-03 | K2406931-001 | ND |
| 2024-09-03 | K2409102-001 | ND |