Dalapon
Quail Ridge Estates Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
14
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 | 6 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 3 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-12-05 | 35435399001 | ND |
| 2018-12-05 | 35435399001 | ND |
| 2019-02-04 | 35446720001 | ND |
| 2019-02-04 | 35446720002 | ND |
| 2019-02-04 | 35446720001 | ND |
| 2019-02-04 | 35446720002 | ND |
| 2019-12-18 | 35520216001 | ND |
| 2019-12-18 | 35520216001 | ND |
| 2020-03-16 | 35538363001 | ND |
| 2020-06-02 | 35554354001 | ND |
| 2020-08-11 | 35570279001 | ND |
| 2022-02-07 | 35695811001 | ND |
| 2022-02-07 | 35695811002 | ND |
| 2022-02-07 | 35695811003 | ND |