Dalapon
City of Overton
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
8
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 | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | 1.87 ppb | 1 | 1 | 1.87 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 |
|---|---|---|
| 2018-03-13 | Q1810105008 | ND |
| 2018-06-11 | Q1823066008 | ND |
| 2019-04-15 | Q1914977006 | ND |
| 2020-05-14 | Q2019538011 | ND |
| 2021-05-03 | Q2111069007 | ND |
| 2021-10-21 | Q2129818004 | ND |
| 2022-06-27 | Q2217839001 | ND |
| 2023-05-25 | Q2319666010 | 1.87 ppb |