Dalapon
Fairview Union Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
18
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 | 4 | 0 | ND |
| 2019 | 2.77 ppb | 6 | 2 | ND - 8.30 ppb |
| 2020 | 1.45 ppb | 2 | 1 | ND - 2.90 ppb |
| 2021 | 1.45 ppb | 2 | 1 | ND - 2.90 ppb |
| 2022 | 1.25 ppb | 2 | 1 | ND - 2.50 ppb |
| 2023 | 1.70 ppb | 2 | 1 | ND - 3.40 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 |
|---|---|---|
| 2018-01-22 | 35370033001 | ND |
| 2018-01-22 | 35370033001 | ND |
| 2018-07-31 | 35408507001 | ND |
| 2018-07-31 | 35408507001 | ND |
| 2019-02-25 | 35450972001 | ND |
| 2019-02-25 | 35450972001 | ND |
| 2019-08-26 | 35493338001 | 8.30 ppb |
| 2019-08-26 | 35493338001 | 8.30 ppb |
| 2019-09-25 | 35500914001 | ND |
| 2019-09-25 | 35500914001 | ND |
| 2020-02-17 | 35531817001 | ND |
| 2020-09-17 | 35578826001 | 2.90 ppb |
| 2021-01-14 | 35604986002 | ND |
| 2021-08-18 | 35657244007 | 2.90 ppb |
| 2022-02-01 | 35694942005 | ND |
| 2022-08-08 | 35738986003 | 2.50 ppb |
| 2023-03-06 | 35784946001 | ND |
| 2023-08-22 | 35823283001 | 3.40 ppb |