Diquat
Aqua Illinois - Kankakee
Diquat is a herbicide used on potato crops and aquatic weeds.
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 | ND | 1 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 6 ppb
The EWG Health Guideline of 6 ppb for diquat was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cataracts.
EPA Maximum Contaminant
Level (MCL) 20 ppb
The legal limit for diquat, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-06-04 | 4061024-01 | ND |
2015-04-07 | 5041643-01 | ND |
2016-04-12 | 6042521-01 | ND |
2017-04-11 | 7042273-01 | ND |
2018-04-10 | 8042563-01 | ND |
2018-07-24 | 8075055-01 | ND |
2018-08-07 | 8082059-01 | ND |
2018-08-07 | 8082077-01 | ND |
2019-04-23 | 9045406-01 | ND |
2019-07-24 | 9075302-01 | ND |
2019-07-24 | 9075302-03 | ND |