Dalapon
Concordia PWS
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
8
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | 19.8 ppb | 2 | 1 | ND - 39.5 ppb |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-05-14 | AC23675 | ND |
| 2015-05-10 | AC47045 | ND |
| 2016-05-16 | AC72546 | ND |
| 2017-05-16 | AC96256 | ND |
| 2017-06-26 | AC99766 | 39.5 ppb |
| 2018-05-15 | AD20797 | ND |
| 2018-08-21 | AD31523 | ND |
| 2019-05-14 | AD47764 | ND |