Dalapon
Sandy Harbor Subdivision
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
23
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 | 0.900 ppb | 3 | 2 | ND - 1.70 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 |
|---|---|---|
| 2018-06-11 | AE29226 | ND |
| 2018-08-14 | AE36904 | 1.70 ppb |
| 2018-11-29 | AE47360 | 1.000 ppb |
| 2019-02-22 | AE55522 | ND |
| 2019-04-04 | AE61176 | ND |
| 2019-08-13 | AE78265 | ND |
| 2019-10-24 | AE87544 | ND |
| 2020-02-10 | AE97557 | ND |
| 2020-04-06 | AF05615 | ND |
| 2020-07-15 | AF19390 | ND |
| 2020-11-09 | AF33567 | ND |
| 2021-02-01 | AF41874 | ND |
| 2021-06-16 | AF58228 | ND |
| 2021-08-23 | AF67338 | ND |
| 2021-11-10 | AF76424 | ND |
| 2022-03-02 | AF87201 | ND |
| 2022-04-07 | AF92433 | ND |
| 2022-08-15 | AG09106 | ND |
| 2022-10-21 | AG17919 | ND |
| 2023-03-14 | AG32804 | ND |
| 2023-06-13 | AG44169 | ND |
| 2023-09-07 | AG55264 | ND |
| 2023-10-17 | AG60033 | ND |