Diquat
Village Water System
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 34 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 36 | 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 |
---|---|---|
2016-04-20 | 35240730008 | ND |
2016-04-20 | 35240730008 | ND |
2016-04-20 | 35240730007 | ND |
2016-04-20 | 35240730006 | ND |
2016-04-20 | 35240730005 | ND |
2016-04-20 | 35240730004 | ND |
2016-04-20 | 35240730003 | ND |
2016-04-20 | 35240730002 | ND |
2016-04-20 | 35240730001 | ND |
2016-04-20 | 35240730001 | ND |
2016-04-20 | 35240730002 | ND |
2016-04-20 | 35240730003 | ND |
2016-04-20 | 35240730004 | ND |
2016-04-20 | 35240730005 | ND |
2016-04-20 | 35240730006 | ND |
2016-04-20 | 35240730007 | ND |
2016-04-26 | 35241518009 | ND |
2016-04-26 | 35241518010 | ND |
2016-04-26 | 35241518009 | ND |
2016-04-26 | 35241518008 | ND |
2016-04-26 | 35241518006 | ND |
2016-04-26 | 35241518005 | ND |
2016-04-26 | 35241518004 | ND |
2016-04-26 | 35241518003 | ND |
2016-04-26 | 35241518002 | ND |
2016-04-26 | 35241518001 | ND |
2016-04-26 | 35241518008 | ND |
2016-04-26 | 35241518006 | ND |
2016-04-26 | 35241518005 | ND |
2016-04-26 | 35241518004 | ND |
2016-04-26 | 35241518003 | ND |
2016-04-26 | 35241518002 | ND |
2016-04-26 | 35241518001 | ND |
2016-04-26 | 35241518010 | ND |
2019-02-11 | 35447880006 | ND |
2019-02-11 | 35447880005 | ND |
2019-02-11 | 35447880004 | ND |
2019-02-11 | 35447880003 | ND |
2019-02-11 | 35447880002 | ND |
2019-02-11 | 35447880001 | ND |
2019-02-11 | 35447880007 | ND |
2019-02-11 | 35447880008 | ND |
2019-02-11 | 35447880001 | ND |
2019-02-11 | 35447880002 | ND |
2019-02-11 | 35447880003 | ND |
2019-02-11 | 35447880004 | ND |
2019-02-11 | 35447880005 | ND |
2019-02-11 | 35447880006 | ND |
2019-02-11 | 35447880007 | ND |
2019-02-11 | 35447880008 | ND |
2019-03-25 | 35457558001 | ND |
2019-03-25 | 35457558009 | ND |
2019-03-25 | 35457558002 | ND |
2019-03-25 | 35457558003 | ND |
2019-03-25 | 35457558004 | ND |
2019-03-25 | 35457558005 | ND |
2019-03-25 | 35457558006 | ND |
2019-03-25 | 35457558007 | ND |
2019-03-25 | 35457558008 | ND |
2019-03-25 | 35457558009 | ND |
2019-03-25 | 35457558001 | ND |
2019-03-25 | 35457558002 | ND |
2019-03-25 | 35457558003 | ND |
2019-03-25 | 35457558004 | ND |
2019-03-25 | 35457558005 | ND |
2019-03-25 | 35457558006 | ND |
2019-03-25 | 35457558007 | ND |
2019-03-25 | 35457558008 | ND |
2019-04-01 | 35458991001 | ND |
2019-04-01 | 35458991001 | ND |