Dalapon
Bryan County Rural Water, Sewer & Solid Waste Management District #2
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
16
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 | 2 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | 0.500 ppb | 3 | 1 | ND - 1.50 ppb |
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 |
|---|---|---|
| 2018-08-29 | 18081323 | ND |
| 2018-12-19 | 1812500 | ND |
| 2019-02-06 | 1902151 | ND |
| 2019-03-13 | 1903384 | ND |
| 2019-04-17 | 1904501 | ND |
| 2019-09-18 | 1909634 | ND |
| 2019-12-18 | 1912629 | ND |
| 2020-02-19 | 2002512 | ND |
| 2020-07-22 | 102000-01 | ND |
| 2021-02-17 | 104910-01 | ND |
| 2021-07-14 | 107198-01 | ND |
| 2022-01-12 | 109841-01 | ND |
| 2022-07-20 | 112533-01 | ND |
| 2023-01-04 | 114931-01 | ND |
| 2023-07-12 | 117946-01 | 1.50 ppb |
| 2023-10-04 | 119263-01 | ND |