Dalapon
College Place Water Department
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
11
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 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 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 |
|---|---|---|
| 2018-06-25 | ND | |
| 2019-05-28 | ND | |
| 2021-12-01 | 4231834 | ND |
| 2022-05-31 | 4369958 | ND |
| 2022-06-14 | 4309373 | ND |
| 2022-08-09 | 4331460 | ND |
| 2022-11-01 | 4373086 | ND |
| 2023-02-06 | 4411982 | ND |
| 2023-04-24 | 4448591 | ND |
| 2023-08-29 | 4507809 | ND |
| 2023-10-23 | 4538609 | ND |