Dalapon
Silver Dollar Shooters Club
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
9
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 | 3.00 ppb | 1 | 1 | 3.00 ppb |
| 2022 | 1.30 ppb | 4 | 3 | ND - 2.30 ppb |
| 2023 | 0.700 ppb | 4 | 2 | ND - 1.40 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 |
|---|---|
| 2021-10-25 | 3.00 ppb |
| 2022-01-17 | ND |
| 2022-06-23 | 1.50 ppb |
| 2022-08-24 | 2.30 ppb |
| 2022-12-21 | 1.40 ppb |
| 2023-03-08 | 1.40 ppb |
| 2023-06-22 | ND |
| 2023-07-25 | 1.40 ppb |
| 2023-11-02 | ND |