Dalapon
Hca Roan Filter Plant
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
9
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2020-06-08 | 22436122.00 | ND |
| 2020-10-19 | 23201702.00 | ND |
| 2021-02-04 | 23906058.00 | ND |
| 2021-04-08 | 24266567.00 | ND |
| 2021-07-01 | 24848251.00 | ND |
| 2023-02-28 | 28541416.00 | ND |
| 2023-05-02 | 28921467.00 | ND |
| 2023-08-22 | 29719384.00 | ND |
| 2023-11-14 | 30089952.00 | ND |