Dalapon
Harris County Municipal Utility District 189
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 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-05-17 | AE26723 | ND |
| 2019-07-08 | AE73372 | ND |
| 2020-06-23 | AF16510 | ND |
| 2020-06-23 | AF16596 | ND |
| 2020-06-23 | AF16599 | ND |
| 2021-06-10 | AF57433 | ND |
| 2022-07-21 | AG05747 | ND |
| 2023-07-20 | AG49574 | ND |
| 2023-07-20 | AG49681 | ND |
| 2023-10-12 | AG59765 | ND |