Dalapon
City of Refugio
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
15
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 | 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 |
|---|---|---|
| 2018-06-11 | AE29238 | ND |
| 2019-06-10 | AE69717 | ND |
| 2020-03-12 | AF02685 | ND |
| 2020-03-12 | AF02686 | ND |
| 2020-03-12 | AF02687 | ND |
| 2020-04-15 | AF06902 | ND |
| 2020-07-30 | AF21389 | ND |
| 2020-09-01 | AF26099 | ND |
| 2020-10-28 | AF32692 | ND |
| 2021-08-19 | AF67151 | ND |
| 2022-07-21 | AG05763 | ND |
| 2023-02-16 | AG29412 | ND |
| 2023-02-16 | AG29413 | ND |
| 2023-06-05 | AG43009 | ND |
| 2023-06-05 | AG43079 | ND |