Dalapon
La Veta, Town of
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
11
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 | ND | 2 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 1.58 ppb | 4 | 4 | 1.50 ppb - 1.60 ppb |
| 2023 | 1.40 ppb | 5 | 4 | ND - 2.20 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 |
|---|---|
| 2018-07-19 | ND |
| 2018-07-19 | ND |
| 2022-07-05 | 1.60 ppb |
| 2022-07-05 | 1.60 ppb |
| 2022-08-15 | 1.60 ppb |
| 2022-11-03 | 1.50 ppb |
| 2023-02-02 | 1.60 ppb |
| 2023-05-04 | 1.30 ppb |
| 2023-07-12 | 1.90 ppb |
| 2023-08-08 | 2.20 ppb |
| 2023-11-28 | ND |