Dalapon
Lake Forest
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 | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | 1.48 ppb | 3 | 2 | ND - 2.89 ppb |
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 |
---|---|---|
2014-04-21 | 4043743-01 | ND |
2015-04-20 | 5043656-01 | ND |
2016-04-18 | 6043496-01 | ND |
2017-05-01 | 7050979-01 | ND |
2018-04-02 | 8040136-01 | ND |
2019-05-06 | 1905425-001C | 2.89 ppb |
2019-07-22 | 1906670-001A | 1.56 ppb |
2019-12-16 | 1912406-001A | ND |