Diquat
North Las Vegas Utilities
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 | 6 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 4 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-02-11 | 14020154-001 | ND |
2014-06-25 | 14060515-001 | ND |
2014-07-31 | 14070542-001 | ND |
2014-08-20 | 14080323-001 | ND |
2014-09-24 | 14090437-001 | ND |
2014-10-22 | 14100391-003 | ND |
2015-06-17 | 15060305-001 | ND |
2015-07-15 | 15070291-002 | ND |
2015-07-15 | 15070291-001 | ND |
2018-01-22 | S1800643001 | ND |
2018-01-22 | S1800643002 | ND |
2018-08-14 | S1800751001 | ND |
2018-08-14 | S1800751002 | ND |