Dalapon
City of Shavano Park
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
18
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 | 7 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-05-14 | AE26164 | ND |
| 2019-06-14 | AE70862 | ND |
| 2020-02-24 | AE99578 | ND |
| 2020-02-24 | AE99582 | ND |
| 2020-02-24 | AE99584 | ND |
| 2020-05-15 | AF11869 | ND |
| 2020-05-15 | AF11926 | ND |
| 2020-05-15 | AF11930 | ND |
| 2020-07-13 | AF19185 | ND |
| 2021-06-18 | AF58850 | ND |
| 2021-06-18 | AF58934 | ND |
| 2022-03-09 | AF88473 | ND |
| 2022-06-21 | AG01689 | ND |
| 2023-03-16 | AG33402 | ND |
| 2023-06-22 | AG45579 | ND |
| 2023-06-22 | AG45678 | ND |
| 2023-06-22 | AG45679 | ND |
| 2023-06-22 | AG45681 | ND |