Dalapon
Deerhaven Water Control and Improvement District
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 | 0.575 ppb | 4 | 2 | ND - 1.20 ppb |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 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 |
|---|---|---|
| 2018-03-22 | AE19589 | ND |
| 2018-06-05 | AE28658 | ND |
| 2018-08-30 | AE38904 | 1.20 ppb |
| 2018-11-28 | AE47142 | 1.10 ppb |
| 2019-02-05 | AE52850 | ND |
| 2019-04-25 | AE63689 | ND |
| 2019-08-13 | AE78264 | ND |
| 2019-10-24 | AE87554 | ND |
| 2020-02-10 | AE97559 | ND |
| 2020-04-06 | AF05616 | ND |
| 2020-07-15 | AF19387 | ND |
| 2020-11-09 | AF33568 | ND |
| 2021-02-01 | AF41868 | ND |
| 2021-06-16 | AF58230 | ND |
| 2021-08-23 | AF67341 | ND |
| 2021-11-17 | AF76864 | ND |
| 2022-03-02 | AF87200 | ND |
| 2022-04-07 | AF92431 | ND |
| 2022-08-15 | AG09108 | ND |
| 2022-11-17 | AG19148 | ND |
| 2023-02-28 | AG30715 | ND |
| 2023-06-22 | AG45570 | ND |
| 2023-09-07 | AG55268 | ND |
| 2023-11-06 | AG62346 | ND |