Dalapon
Angus Valley
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
10
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 | 1.08 ppb | 4 | 3 | ND - 1.50 ppb |
| 2022 | ND | 3 | 0 | ND |
| 2023 | 0.533 ppb | 3 | 1 | ND - 1.60 ppb |
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 | Result |
|---|---|
| 2021-02-18 | ND |
| 2021-02-18 | 1.30 ppb |
| 2021-08-25 | 1.50 ppb |
| 2021-10-18 | 1.50 ppb |
| 2022-03-02 | ND |
| 2022-06-20 | ND |
| 2022-08-17 | ND |
| 2023-03-13 | 1.60 ppb |
| 2023-05-29 | ND |
| 2023-11-13 | ND |