PFOS + PFOA + PFHxS + PFNA
Yacolt
5
Samples
0
Samples exceeding legal limit (MCL)
5
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 | 18.8 ppt | 5 | 5 | 6.73 ppt - 39.2 ppt |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2023-06-22 | 4483306 | 7.26 ppt |
| 2023-08-01 | 4504117 | 7.03 ppt |
| 2023-08-01 | 4502394 | 33.8 ppt |
| 2023-08-23 | 4512723 | 39.2 ppt |
| 2023-11-29 | 4568323 | 6.73 ppt |