Dalapon
Guadalupe Blanco River Authority
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
30
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 | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 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 |
|---|---|---|
| 2018-03-01 | AE16412 | ND |
| 2018-03-01 | AE16299 | ND |
| 2018-05-31 | AE28274 | ND |
| 2018-08-28 | AE38637 | ND |
| 2018-11-14 | AE46062 | ND |
| 2019-02-25 | AE55932 | ND |
| 2019-02-25 | AE56070 | ND |
| 2019-05-21 | AE67623 | ND |
| 2019-08-20 | AE79500 | ND |
| 2019-10-22 | AE87207 | ND |
| 2020-03-16 | AF02901 | ND |
| 2020-03-16 | AF03032 | ND |
| 2020-05-26 | AF12867 | ND |
| 2020-09-10 | AF26987 | ND |
| 2020-11-18 | AF35080 | ND |
| 2021-03-22 | AF47837 | ND |
| 2021-03-22 | AF47890 | ND |
| 2021-06-02 | AF56438 | ND |
| 2021-08-18 | AF66851 | ND |
| 2021-11-09 | AF76394 | ND |
| 2022-02-14 | AF84588 | ND |
| 2022-02-14 | AF84707 | ND |
| 2022-04-26 | AF94603 | ND |
| 2022-08-18 | AG09979 | ND |
| 2022-11-29 | AG20252 | ND |
| 2023-02-15 | AG29031 | ND |
| 2023-02-15 | AG29128 | ND |
| 2023-04-18 | AG37031 | ND |
| 2023-07-24 | AG49806 | ND |
| 2023-10-18 | AG60209 | ND |