Dalapon
Ridge Harbor
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
26
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 | 4 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 5 | 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 |
|---|---|---|
| 2018-03-13 | AE18128 | ND |
| 2018-06-11 | AE29227 | ND |
| 2018-08-14 | AE36903 | ND |
| 2018-11-19 | AE46401 | ND |
| 2019-02-22 | AE55521 | ND |
| 2019-04-04 | AE61177 | ND |
| 2019-04-04 | AE61226 | ND |
| 2019-08-09 | AE77865 | ND |
| 2019-11-05 | AE88431 | ND |
| 2020-02-06 | AE97282 | ND |
| 2020-04-21 | AF07343 | ND |
| 2020-07-29 | AF21077 | ND |
| 2020-10-29 | AF32604 | ND |
| 2021-01-21 | AF40305 | ND |
| 2021-04-29 | AF51797 | ND |
| 2021-08-02 | AF64120 | ND |
| 2021-11-10 | AF76408 | ND |
| 2022-03-01 | AF86888 | ND |
| 2022-03-01 | AF87017 | ND |
| 2022-06-01 | AF99021 | ND |
| 2022-08-02 | AG07295 | ND |
| 2022-10-21 | AG17917 | ND |
| 2023-01-23 | AG25490 | ND |
| 2023-04-17 | AG36860 | ND |
| 2023-09-06 | AG55030 | ND |
| 2023-10-17 | AG60029 | ND |