Dalapon
City of Roseville
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | 20.0 ppb | 1 | 1 | 20.0 ppb |
2016 | ND | 3 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2015-11-12 | 5810-002-0937 | 20.0 ppb |
2016-08-25 | 5810-015-0926 | ND |
2016-08-25 | 5810-017-0808 | ND |
2016-08-25 | 5810-019-0850 | ND |
2018-08-23 | 5810-008-1056 | ND |
2018-08-23 | 5810-015-1210 | ND |
2019-07-16 | 5810-002-0730 | ND |