Dalapon
City of Hallettsville
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 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-09-19 | AE40672 | ND |
| 2019-08-22 | AE80206 | ND |
| 2020-05-19 | AF11741 | ND |
| 2020-05-19 | AF11766 | ND |
| 2020-05-19 | AF11767 | ND |
| 2020-05-19 | AF11768 | ND |
| 2021-06-10 | AF57408 | ND |
| 2022-08-04 | AG07803 | ND |
| 2023-03-06 | AG31666 | ND |
| 2023-08-28 | AG54241 | ND |
| 2023-08-28 | AG54374 | ND |
| 2023-08-28 | AG54379 | ND |