Dalapon
New Water Supply Corporation
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
10
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 | 3 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 0.900 ppb | 3 | 1 | ND - 2.70 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 |
|---|---|---|
| 2018-06-06 | Q1822507019 | ND |
| 2018-06-06 | Q1822507020 | ND |
| 2018-06-06 | Q1822507021 | ND |
| 2020-11-09 | Q2043745012 | ND |
| 2021-04-15 | Q2109763002 | ND |
| 2021-04-15 | Q2109763026 | ND |
| 2021-04-15 | Q2109763027 | ND |
| 2023-06-15 | Q2322767015 | 2.70 ppb |
| 2023-09-11 | Q2338753001 | ND |
| 2023-10-30 | Q2346368001 | ND |