Dalapon
Cheniere Drew North Water System
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 | 0.280 ppb | 5 | 1 | ND - 1.40 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 0.300 ppb | 5 | 1 | ND - 1.50 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 |
|---|---|---|
| 2020-07-30 | 35566943001 | ND |
| 2020-07-30 | 35566945001 | ND |
| 2020-07-30 | 35566947001 | ND |
| 2020-09-22 | 35579533001 | ND |
| 2020-09-22 | 35579533002 | 1.40 ppb |
| 2023-10-09 | 35833625001 | ND |
| 2023-10-09 | 35833625002 | 1.50 ppb |
| 2023-10-09 | 35833625003 | ND |
| 2023-10-09 | 35833625004 | ND |
| 2023-10-09 | 35833625005 | ND |