Dalapon
Lake Monticello
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 | ND | 2 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | 0.113 ppb | 3 | 1 | ND - 0.340 ppb |
2018 | ND | 1 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-01-07 | 14011433-01A-HER | ND |
2014-04-09 | 1404C85-01A-HERB | ND |
2017-05-16 | 17052119-01A | ND |
2017-08-01 | 17080349-01A | 0.340 ppb |
2017-11-14 | 17112146-01A | ND |
2018-02-27 | 18023449-01A | ND |