Dalapon
North Wales Water Authority
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
35
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 | 20 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 14 | 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 |
|---|---|---|
| 2020-04-01 | 22025477.00 | ND |
| 2020-04-20 | 22026142.00 | ND |
| 2020-04-20 | 22026172.00 | ND |
| 2020-04-20 | 22026112.00 | ND |
| 2020-04-20 | 22026082.00 | ND |
| 2020-04-27 | 22217304.00 | ND |
| 2020-04-27 | 22217364.00 | ND |
| 2020-04-27 | 22217413.00 | ND |
| 2020-04-27 | 22217274.00 | ND |
| 2020-04-27 | 22217334.00 | ND |
| 2020-07-06 | 22609700.00 | ND |
| 2020-07-27 | 22801111.00 | ND |
| 2020-07-27 | 22801141.00 | ND |
| 2020-07-27 | 22801168.00 | ND |
| 2020-07-27 | 22801081.00 | ND |
| 2020-07-27 | 22801201.00 | ND |
| 2020-08-31 | 23001474.00 | ND |
| 2020-08-31 | 23001446.00 | ND |
| 2020-08-31 | 23001418.00 | ND |
| 2020-08-31 | 23001502.00 | ND |
| 2022-07-05 | 27039493.00 | ND |
| 2023-04-03 | 28704926.00 | ND |
| 2023-04-03 | 28704922.00 | ND |
| 2023-04-03 | 28704925.00 | ND |
| 2023-04-03 | 28704924.00 | ND |
| 2023-04-03 | 28704923.00 | ND |
| 2023-04-04 | 28704921.00 | ND |
| 2023-06-27 | 29110714.00 | ND |
| 2023-07-10 | 29304286.00 | ND |
| 2023-07-10 | 29304285.00 | ND |
| 2023-07-10 | 29304283.00 | ND |
| 2023-07-10 | 29304282.00 | ND |
| 2023-07-11 | 29304287.00 | ND |
| 2023-07-11 | 29304284.00 | ND |
| 2023-07-11 | 29304288.00 | ND |