PFOS + PFOA + PFHxS + PFNA
Burbank Irrigation District 4
4
Samples
0
Samples exceeding legal limit (MCL)
4
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 | 28.9 ppt | 1 | 1 | 28.9 ppt |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 19.2 ppt | 3 | 3 | 6.69 ppt - 30.2 ppt |
ppt = parts per trillion
State, National, and Health Guidelines for Drinking Water
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2021-10-13 | 4231789 | 28.9 ppt |
| 2023-03-23 | 4429223 | 20.7 ppt |
| 2023-06-26 | 4499148 | 6.69 ppt |
| 2023-12-18 | 4560262 | 30.2 ppt |