Nonafluoro-3,6-dioxaheptanoic acid
City of Deridder Water System
8
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 | ND | 4 | 0 | ND |
| 2024 | ND | 4 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2023-11-16 | 35842562001SE1 | ND |
| 2023-11-16 | 35842562003SE1 | ND |
| 2023-11-16 | 35842562005SE1 | ND |
| 2023-11-16 | 35842562007SE1 | ND |
| 2024-05-14 | 35879668001SE2 | ND |
| 2024-05-14 | 35879668003SE2 | ND |
| 2024-05-14 | 35879668005SE2 | ND |
| 2024-05-14 | 35879668007SE2 | ND |