Butanoic acid, 2,2,3,3,4,4-hexafluoro-4-(trifluoro...
Portland Water District - Greater Portland
4
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 | ND | 1 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
| 2024 | ND | 3 | 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 |
|---|---|---|
| 2022-07-26 | 380-13411-1 | ND |
| 2024-03-13 | 810-97238-1 | ND |
| 2024-06-11 | 810-107978-1 | ND |
| 2024-09-03 | 810-118666-1 | ND |