Dalapon
New Prospect Water Supply Corporation Plant 2 & 3
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
6
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 1.40 ppb | 1 | 1 | 1.40 ppb |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-08-13 | Q1832189003 | ND |
| 2019-10-29 | Q1974617006 | ND |
| 2020-05-21 | Q2020372005 | ND |
| 2021-03-04 | Q2105809006 | ND |
| 2022-02-17 | Q2205953005 | 1.40 ppb |
| 2023-07-18 | Q2327983003 | ND |