Dalapon
Harris County Municipal Utility District 371
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
24
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 | 2 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 9 | 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 |
|---|---|---|
| 2018-06-26 | AE31430 | ND |
| 2019-09-24 | AE84379 | ND |
| 2020-05-08 | AF10347 | ND |
| 2020-05-08 | AF10466 | ND |
| 2021-06-30 | AF60102 | ND |
| 2021-09-17 | AF70357 | ND |
| 2021-10-25 | AF74506 | ND |
| 2022-02-22 | AF85826 | ND |
| 2022-02-22 | AF85829 | ND |
| 2022-04-25 | AF94196 | ND |
| 2022-04-25 | AF94202 | ND |
| 2022-09-23 | AG14749 | ND |
| 2022-09-23 | AG14734 | ND |
| 2022-10-24 | AG18050 | ND |
| 2022-10-24 | AG18051 | ND |
| 2023-01-26 | AG26438 | ND |
| 2023-01-26 | AG26439 | ND |
| 2023-01-26 | AG26547 | ND |
| 2023-04-05 | AG35552 | ND |
| 2023-04-05 | AG35553 | ND |
| 2023-07-07 | AG47528 | ND |
| 2023-07-07 | AG47544 | ND |
| 2023-10-18 | AG60228 | ND |
| 2023-10-18 | AG60230 | ND |