PFOS + PFOA + PFHxS + PFNA
East Olympia 684
8
Samples
0
Samples exceeding legal limit (MCL)
8
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 | 13.5 ppt | 6 | 6 | 12.9 ppt - 14.3 ppt |
| 2023 | 13.8 ppt | 2 | 2 | 13.8 ppt |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2022-01-30 | 4240258 | 14.3 ppt |
| 2022-01-30 | 4240258 | 14.3 ppt |
| 2022-04-10 | 4277548 | 13.2 ppt |
| 2022-04-10 | 4277548 | 13.2 ppt |
| 2022-09-11 | 4380718 | 12.9 ppt |
| 2022-09-11 | 4380718 | 12.9 ppt |
| 2023-06-04 | 4543727 | 13.8 ppt |
| 2023-06-04 | 4543727 | 13.8 ppt |