Dalapon
Columbia Water Company
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
12
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 | ND | 6 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 6 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 200 ppb
The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2020-04-07 | 22172790.00 | ND |
| 2020-04-07 | 22172820.00 | ND |
| 2020-04-13 | 22172850.00 | ND |
| 2020-07-06 | 22757673.00 | ND |
| 2020-07-07 | 22757703.00 | ND |
| 2020-07-13 | 22757907.00 | ND |
| 2023-04-04 | 28859614.00 | ND |
| 2023-04-10 | 28859615.00 | ND |
| 2023-04-17 | 28859801.00 | ND |
| 2023-07-10 | 29455561.00 | ND |
| 2023-07-14 | 29455563.00 | ND |
| 2023-07-14 | 29455562.00 | ND |