Dalapon
Goodsprings 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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 1.03 ppb | 6 | 3 | ND - 2.47 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 |
|---|---|---|
| 2020-03-11 | Q2010297004 | ND |
| 2020-06-17 | Q2024667003 | ND |
| 2020-12-17 | Q2050081013 | ND |
| 2020-12-17 | Q2050081014 | ND |
| 2023-02-16 | Q2306539008 | ND |
| 2023-07-06 | Q2326236003 | ND |
| 2023-07-06 | Q2326236008 | 2.47 ppb |
| 2023-07-06 | Q2326236009 | 2.42 ppb |
| 2023-10-26 | Q2346263001 | ND |
| 2023-10-26 | Q2346263002 | 1.29 ppb |