Dalapon
Walnut Springs
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 | 3 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-04-02 | AE20899 | ND |
| 2018-04-02 | AE20901 | ND |
| 2018-06-27 | AE31681 | ND |
| 2019-09-11 | AE82997 | ND |
| 2019-11-07 | AE88961 | ND |
| 2021-03-29 | AF48368 | ND |
| 2021-08-05 | AF65044 | ND |
| 2021-08-05 | AF65118 | ND |
| 2022-04-07 | AF92492 | ND |
| 2022-05-11 | AF96458 | ND |
| 2023-02-07 | AG27801 | ND |
| 2023-05-01 | AG38598 | ND |